detector

Abstract

The application discloses a detector. The detector comprises a detector shell, a window, an elastic member, a vibrating member and a controller. The window is used for passing light and is assembled to the detector shell through the elastic member. The vibrating member is arranged at a central region of the window and is separated from the detector shell and the elastic member. The controller is connected with the vibrating member and controls vibration of the vibrating member. The vibrating member drives the window to vibrate, so that dirt on the window is removed through vibration, the window is effectively cleaned, and finally the detection precision of the detector is ensured.

Description

Technical Field

[0001] This application relates to testing equipment, and more particularly to a testing instrument. Background Technology

[0002] A detector uses light for detection; for example, a water quality analyzer uses light to detect water quality, such as COD (Chemical Oxygen Demand). To perform this detection, the detector includes a window through which light passes. The cleanliness of the window affects the detector's accuracy; therefore, how to clean the window is a problem that needs to be addressed. Utility Model Content

[0003] The purpose of this application is to disclose a detection instrument.

[0004] This application discloses a detector. The detector includes a detector housing, a window, an elastic element, a vibrating element, and a controller; the window allows light to pass through and is assembled to the detector housing via the elastic element; the vibrating element is disposed in the central area of ​​the window and is separate from the detector housing and the elastic element; the controller is connected to the vibrating element and controls the vibration of the vibrating element, and the vibrating element drives the window to vibrate.

[0005] In some embodiments, the elastic element wraps around the edge of the window to form a wrapping boundary; the area of ​​the central region is smaller than the area enclosed by the wrapping boundary.

[0006] In some embodiments, the elastic element includes a window mounting groove, one of the inner wall of the window mounting groove and the edge of the window is provided with an inner rib, the edge of the window is located in the window mounting groove and abuts against the other of the inner wall and the edge of the window.

[0007] In some embodiments, the detector housing includes an elastic element mounting groove, and one of the outer surface of the elastic element and the groove wall of the elastic element mounting groove is provided with an outwardly protruding rib. The elastic element is located in the elastic element mounting groove, and the outwardly protruding rib abuts against the other of the groove wall and the outer surface.

[0008] In some embodiments, the vibrating element includes a piezoelectric sheet, the piezoelectric sheet being cylindrical and its axis being perpendicular to the viewing window.

[0009] In some embodiments, the detector housing includes a first housing and a second housing; the first housing and the second housing are rotatably connected, and the interiors of the first housing and the second housing are connected by a wiring channel; the detector also includes a controlled object and a separator, the controlled object and the separator being located within the second housing, the controlled object including a light source assembly emitting light for detection and / or sterilization, the cable of the controlled object being located on the separator such that the cable is deviated from the light path formed by the light; at least a portion of the cable of the controlled object passes through the wiring channel and is connected to the controller.

[0010] In some embodiments, the detector housing includes a first cavity accommodating the light source assembly; the cavity wall of the first cavity is fitted with the viewing window; the separator includes a separator cavity extending through the separator, and light from the light source assembly passes through the separator cavity and exits from the viewing window; the separator includes at least one of the following features:

[0011] a) Both ends of the separator are sealed to the cavity walls of the light source assembly and the first cavity, respectively;

[0012] b) The separator includes a separator body having the separator cavity and side portions located at opposite ends of the separator body, the two side portions and the separator body forming an I-shape, the separator body and the two side portions forming a groove for accommodating the cable; or, the separator includes a separator body having the separator cavity and side portions located on the separator body, the side portions and the separator body forming a T-shape; the separator body, the side portions and the light source assembly form a groove for accommodating the cable.

[0013] c) The inner wall of the cavity of the separator includes a black borax layer, or the separator is black foam, or the separator is black silicone.

[0014] In some embodiments, the light source assembly includes a light-emitting lamp, a light-emitting lamp holder, a collimating lens, and a collimating lens mount; the light-emitting lamp and the collimating lens mount are mounted on the light-emitting lamp holder, and the light-emitting lamp holder is mounted on the detector housing; the vibrating element includes a through hole; the collimating lens is mounted on the collimating lens mount and collimates the light emitted by the light-emitting lamp, and the collimated light is directed from the through hole to the viewing window; the detector includes at least one of the following features:

[0015] a) The detector includes a cable limiting mechanism; with the light propagation direction of the light source assembly as the front, the cable limiting mechanism is located behind the separator, and the cable is limited by the cable limiting mechanism; the cable limiting mechanism is disposed in at least one of the light-emitting lamp fixing member, the collimating lens seat and the light-emitting lamp;

[0016] b) The collimating lens mount is threadedly connected to the lamp fixing component;

[0017] c) The light-emitting lamp fixing component and the light-emitting lamp are limited by two limiting mechanisms and fixed as one unit by two fixing mechanisms; the line connecting the two fixing mechanisms and the line connecting the two limiting mechanisms are diagonals, and the intersection of the diagonals and the lamp bead of the light-emitting lamp are located on the optical axis of the collimating lens;

[0018] d) The separator is disposed circumferentially on the collimating lens mount and extends out of the collimating lens mount along the direction of light propagation;

[0019] e) The collimating lens mount includes a lens mounting cavity, and the collimating lens is fixed in the lens mounting cavity by dispensing adhesive; the cavity wall of the lens mounting cavity includes a through hole, and the through hole connects the interior of the lens mounting cavity and the exterior of the collimating lens mount.

[0020] In some embodiments, the detector housing includes a housing cover and a housing sealing ring; the housing sealing ring has an n-shaped cross-section, including a base, a first side, a second side, and a rib; the first side and the second side are located on opposite sides of the base, and the rib is disposed on the second side; the second housing includes a cavity for accommodating the controlled object, the top surface of the cavity wall is provided with a groove, the second side is engaged with the groove, and the first side is in contact with the inner surface of the cavity wall; when the housing cover is placed over the cavity opening, the rib abuts against the housing cover and is opposite to the groove;

[0021] In some embodiments, the first housing includes a first connecting end, the second housing includes a connecting portion, and the wiring channel passes through the first connecting end and the connecting portion; one of the first connecting end and the connecting portion is provided with a plurality of threaded grooves along the length direction of the first connecting end; the detector includes a radial sealing ring and an end face sealing ring, the radial sealing ring and the end face sealing ring being located in different threaded grooves; after the first connecting end and the connecting portion are tightened, the radial sealing ring and the end face sealing ring are clamped between the first connecting end and the connecting portion.

[0022] In some embodiments, the detector includes a light source assembly that emits the light and a light receiving assembly that receives the light; the detector housing includes a first cavity that accommodates the light source assembly and a second cavity that accommodates the light receiving assembly; the cavity walls of the first cavity and the second cavity are provided with window mounting holes, the two window mounting holes are opposite each other, and the axis of each window mounting hole is parallel to the optical axis of the light source assembly; there are two windows, each window includes a window body and a shoulder located circumferentially on the window body; each window body is assembled with a window mounting hole via a hole-axis fit, and each shoulder abuts against the edge of a window mounting hole.

[0023] In some embodiments, the detector includes a motor assembly, a wiper assembly, a photoelectric detection assembly, and a light source assembly emitting the light; the motor assembly drives the wiper assembly to reciprocate to clean the window. The photoelectric detection assembly detects the range of the wiper's oscillation. The detector housing includes an opaque receiving chamber and a first cavity, with the light source assembly located within the first cavity; of the motor assembly and the photoelectric detection assembly, at least the photoelectric detection assembly is located within the receiving chamber.

[0024] In some embodiments, the detector includes a protective mesh cover connected to the detector housing, covering the motor assembly components located outside the detector housing and the wiper assembly;

[0025] In some embodiments, where the detector includes the receiving cavity, the detector includes at least one of the following features:

[0026] a) The wall of the receiving compartment is provided with a connecting hole, and the wiper assembly and the motor assembly are connected through the connecting hole; the detector includes a sealing assembly, which is assembled to the wall of the receiving compartment to seal the connecting hole;

[0027] b) The receiving chamber and the first cavity are arranged side by side in a first direction, which is perpendicular to the direction of light propagation;

[0028] c) Both the photoelectric detection component and the motor component are located within the housing, and the motor component and the photoelectric detection component are connected to the controller.

[0029] In some embodiments, the detector includes a light source assembly emitting the light, a first light receiving assembly, a second light receiving assembly, a light path switching device, and an analyzer; a reference light channel is provided inside the detector housing, and the reference light channel is isolated from the outside of the detector; the light emitted by the light source assembly passes through the reference light channel; and the light emitted by the light source assembly passes through the object under test; the light from the object under test is transmitted to the first light receiving assembly through the light path switching device, and the light from the reference light channel is transmitted to the second light receiving assembly through the light path switching device; the first light receiving assembly and the second light receiving assembly are respectively connected to the analyzer.

[0030] In some embodiments, at least one of the first optical receiving component and the second optical receiving component includes a focusing lens, a focusing lens mount, and an optical fiber adapter; the focusing lens is assembled on the focusing lens mount; one of the focusing lens mount and the optical fiber adapter is provided with a mounting shaft, and the other is provided with a mounting hole, the mounting shaft and the mounting hole are engaged by a hole-shaft cooperation and fixed by a fixing structure.

[0031] In some embodiments, there are two optical path switching devices, one of which is located between the object under test and the first optical receiving component, and the other is located between the second optical receiving component and the reference optical channel; both optical path switching devices are connected to the controller, and under the control of the controller, one of the two optical path switching devices is turned on or off.

[0032] In some embodiments, the detector includes a light source assembly emitting the light, a receiving reflector, a light path switching device, a light receiving assembly, and an analyzer. A reference light channel is disposed within the detector housing, and the reference light channel is isolated from the outside of the detector. The light emitted by the light source assembly passes through the reference light channel. The light emitted by the light source assembly passes through the object under test. One of the light rays from the reference light channel and the light rays from the object under test is transmitted to the receiving reflector via the light path switching device and then to the light receiving assembly. The other of the light rays from the reference light channel and the light rays from the object under test is transmitted to the light receiving assembly via the light path switching device. The light receiving assembly is connected to the analyzer.

[0033] In some embodiments, at least one of the light source component and the reference light channel, and at least one of the light source component and the object under test, is provided with a transmitting reflector, and at least one of the transmitting reflector and the receiving reflector includes a light intensity adjustable module; or, at least one of the light source component through the reference light channel to the light receiving component, and at least one of the light source component through the object under test to the light receiving component includes a light intensity adjustable module.

[0034] In the aforementioned detector, since the window is assembled to the detector housing via an elastic element, and the vibrating element is located in the central area of ​​the window, separate from the detector housing and the elastic element, the window becomes a flexible unit through the elastic element. The controller controls the vibration of the vibrating element, and the vibration of the vibrating element drives the window to vibrate. Thus, the window is effectively cleaned by removing dirt through vibration. Attached Figure Description

[0035] Figure 1 This is a perspective view of a detection instrument according to this application;

[0036] Figure 2 This is an exploded view of a detector according to this application. Figure 2 A portion of the third shell was cut off;

[0037] Figure 3 This is a schematic diagram of the first housing, vibrating component, viewing window, elastic component, and viewing window cover of a detector according to this application in an exploded state;

[0038] Figure 4 This is a schematic diagram of the window, window cover, elastic element and vibrating element of this application in an exploded state;

[0039] Figure 5 This is an exploded view of the light source assembly of this application;

[0040] Figure 6 yes Figure 1 The side view of the detector shown;

[0041] Figure 7 It is along Figure 6 Sectional view of line AA in the middle;

[0042] Figure 8 It is along Figure 7 A diagram showing the left side of the BB line;

[0043] Figure 9 yes Figure 8 Enlarged view of section A;

[0044] Figure 10 It is along Figure 6 A cross-sectional view of the CC line;

[0045] Figure 11 It is along Figure 10 A schematic diagram to the left of the DD line in the diagram;

[0046] Figure 12 yes Figure 11 Enlarged view of section B;

[0047] Figure 13 This is a perspective view of the first casing of this application;

[0048] Figure 14 This is a schematic diagram of the motor assembly, photoelectric detection assembly and wiper assembly of this application assembled together;

[0049] Figure 15 yes Figure 14 Enlarged view of section C;

[0050] Figure 16 This is an exploded view of the second housing, the housing cover, and the housing sealing ring of this application;

[0051] Figure 17 This is a cross-sectional view of the first type of separator in this application;

[0052] Figure 18 This is a schematic diagram of the assembly of the second type of separator and the light source assembly in this application;

[0053] Figure 19 This is a schematic diagram of another type of detector used in this application;

[0054] Figure 20 It is along Figure 6 Sectional view of the middle EE line;

[0055] Figure 21 This is a schematic diagram of the focusing lens, focusing lens mount, and fiber optic adapter of the first or second optical receiving component of this application in a disassembled state.

[0056] Figure 22 This is a schematic diagram of the optical path of another detector in this application. Detailed Implementation

[0057] The technical solutions in the embodiments (or "implementations") of this application will be clearly and completely described herein with reference to the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0058] If the embodiments of this application contain terms relating to directional indications or positional relationships (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationships and movement of the components in a specific posture (as shown in the attached figures); if the specific posture changes, the directional indications or positional relationships will also change accordingly. Furthermore, the terms "first" and "second" used in the embodiments of this application are only for descriptive convenience and should not be construed as indicating or implying relative importance.

[0059] See Figure 1 , Figure 2 , Figure 6 and Figure 7 This application discloses a detector. This detector is not limited to a water quality detector; any device that uses light for detection is acceptable. The detector includes a detector housing 1, a viewing window 302, an elastic element 303, a vibrating element 304, and a controller (not shown in the figure). In this embodiment, the detector housing 1 includes a first housing 301, a second housing 101, and a third housing 501. The structure of the detector housing 1 is not limited to this; it can accommodate the relevant components of the detector. For example, the first housing 301 and the third housing 501 can be integrally formed.

[0060] See Figure 3 , Figure 4 and Figure 9 The viewing window 302 allows light to pass through and is assembled to the detector housing 1 via the elastic member 303. The purpose of assembling with the elastic member 303 is to make the viewing window 302 a flexible unit relative to the detector housing 1. Therefore, the structure of the elastic member 303 is not limited to a sealing ring; it only needs to serve this function. In this application, the viewing window 302 is assembled on the viewing window mounting hole 3010 of the first housing 301. The vibrating member 304 is disposed in the central region 3020 of the viewing window 302. The central region refers to a portion of the area radiating outwards from the center of the viewing window 302. For example, the central region can be a circular area with a certain radius centered on the center of the viewing window 302. The vibrating member 304 can be disposed in the central region 3020 by means of adhesive or other methods. The vibrating member 304 is separate from the detector housing 1 and the elastic member 303. One function of this separation is that the vibrating member 304 is an independent component, and the detector housing 1 and the elastic member 303 will not affect the vibration of the vibrating member 304, for example, they will not cause the frequency of the vibrating member 304 to decrease. The controller (not marked in the figure) is connected to the vibrating element 304 and controls the vibration of the vibrating element 304. The vibrating element 304 drives the viewing window 302 to rotate.

[0061] As described above, since the viewing window 302 is assembled to the detector housing via the elastic member 303, and the vibrating member 304 is disposed in the central area of ​​the viewing window 302, separate from the detector housing and the elastic member 303, the elastic member 303 makes the viewing window 302 a flexible unit relative to the detector housing 1. The controller controls the vibration of the vibrating member 304, and the vibration of the vibrating member 304 drives the viewing window 302 to vibrate. Thus, the vibration achieves cleaning of the viewing window 302, effectively cleaning the viewing window 302 and ultimately ensuring the detection accuracy of the detector.

[0062] Based on the function of the vibrating element 304, the structure of the vibrating element 304 is not limited, as long as it can make the window 302 vibrate. For example, it can be a piezoelectric sheet, an electromagnetic vibrator, a motor eccentric wheel, a pneumatic or hydraulic vibrator, or a vibrating element made of magnetostrictive material, etc.

[0063] In the embodiments of this application, since light detection is used, there is a light emitting end and a light receiving end; therefore, see [link to relevant documentation]. Figure 3 The detector has two vibrating elements 304, two elastic elements 303, and two viewing windows 302. Each viewing window 302 (one corresponding to the transmitting end and the other to the receiving end) is assembled to the detector housing 1 via an elastic element 303. Each viewing window 302 is connected to a vibrating element 304. This means that both the transmitting end's viewing window 302 and the receiving end's viewing window 302 can be cleaned. In other embodiments, only one of the transmitting end's viewing window 302 or the receiving end's viewing window 302 may be cleaned. Furthermore, in... Figure 3 In this process, one of the windows 302 is through which the light emitted by the light source component 2 passes. After passing through the object being measured, the light passes through another window 302 and is received by the light receiving component. Therefore, based on the function of the vibrating element 304 in cleaning the window 302 as described later, the window 302 is not limited to a window that performs this function. For example, it could be a window that allows consumers to see the internal structure of the detector, etc.

[0064] See Figure 9 and Figure 4 The elastic element 303 wraps around the edge 3021 of the window 302. In some embodiments, the cross-section of the window 302 is T-shaped, and the shoulder of the window 302 includes the edge 3021. After the elastic element 303 wraps around the edge 3021 of the window 302, it forms a wrapping boundary 3030, and the area of ​​the central region 3020 is smaller than the area enclosed by the wrapping boundary 3030.

[0065] As described above, the area of ​​the central region 3020 is smaller than the area enclosed by the wrapping boundary 3030. Combined with the separation of the vibrating element 304 from the detector housing 1 and the elastic element 303, it can be further ensured that the vibrating element 304 is separated from the elastic element 303. The vibration of the vibrating element 304 will not be reduced due to the obstruction of the elastic element 303 and the detector housing 1, etc., ensuring that the vibrating element has a high vibration frequency. Correspondingly, the cleaning effect on the viewing window 302 is good.

[0066] See Figure 4 and Figure 9 The elastic element 303 includes a window mounting groove, and the inner wall of the window mounting groove is provided with an inner protruding rib 3031. The edge of the window 302 is located within the window mounting groove to achieve the enclosure. The edge of the window 302 abuts against the inner protruding rib 3031. In some embodiments, the inner protruding rib 3031 may be provided on the edge of the window 302, in which case the inner protruding rib 3031 abuts against the inner wall of the window mounting groove. The detector housing 1 includes an elastic element mounting groove. The construction of the elastic element mounting groove is not limited. In some embodiments, after the window cover plate 305 is assembled with the first housing 301, it forms the elastic element mounting groove. The outer surface of the elastic element 303 is provided with an outer protruding rib 3032. The elastic element 303 is located within the elastic element mounting groove, and the outer protruding rib 3032 abuts against the groove wall of the elastic element mounting groove. See [reference needed]. Figure 9 The protruding rib 3032 on one side of the elastic member 303 abuts against the window cover plate 305 (which serves as the groove wall on one side of the elastic member mounting groove), and the protruding rib 3032 on the other side abuts against the first housing 301 (which serves as the groove wall on the other side of the elastic member mounting groove). In some other embodiments, the protruding rib may be provided on the groove wall of the elastic member mounting groove, and when the elastic member is located in the elastic member mounting groove, the outer surface of the elastic member 303 abuts against the protruding rib of the groove wall of the elastic member mounting groove.

[0067] As described above, since the outer rib 3032 of the elastic element 303 abuts against the wall of the elastic element mounting groove, and the inner rib 3031 abuts against the edge of the window 302, on the one hand, the elastic element 303 can achieve good sealing performance, making it difficult for external water to enter the interior of the detector. On the other hand, the aforementioned abutment results in a smaller contact area between the window 21 and the elastic element 303, and a smaller contact area between the elastic element 303 and the wall of the elastic element mounting groove. This makes the window 302 more flexible as a flexible unit, reducing vibration restriction. Furthermore, since the vibrating element 304 is located in the central region 3020 of the window 302, the above configuration results in better vibration of the window 302 and cleaner cleaning. Of course, in some embodiments, only one of the inner and outer ribs may be present (which also has the aforementioned beneficial effects), that is, ribs are only provided between the elastic element 303 and the elastic element mounting groove, or between the elastic element 303 and the window 302, to reduce the contact area.

[0068] See Figure 3 , Figure 4 and Figure 9 The vibrating element 304 includes a piezoelectric sheet. The piezoelectric sheet is cylindrical, but its shape is not limited to this. The axis of the piezoelectric sheet is perpendicular to the viewing window.

[0069] As described above, the vibrating element 304 includes a piezoelectric sheet, which has a simpler structure. The piezoelectric sheet is cylindrical, and its axis is perpendicular to the viewing window 302, causing the viewing window 302 to vibrate back and forth along the axis of the piezoelectric sheet, resulting in better cleaning. When the piezoelectric sheet is cylindrical, its shape matches the viewing window 302, resulting in high size utilization and allowing for a smaller piezoelectric sheet. For example, if the piezoelectric sheet were square, the viewing window 302 would be equivalent to the inscribed circle of the piezoelectric sheet, thus requiring a larger piezoelectric sheet.

[0070] See Figure 1 , Figure 2 , Figures 6 to 8 , Figure 10 , Figure 11 as well as Figure 20 The detector includes a first housing 301, a second housing 101, a light source assembly 2, a light receiving assembly (in this application, a first light receiving assembly 61 and a second light receiving assembly 62), a controlled object (including the light source assembly 2, etc.), a controller, and an analyzer 7. The first housing 301 and the second housing 101 are rotatably connected. See also Figure 7 , Figure 8 , Figure 10 , Figure 11 and Figure 20The detector housing includes a first cavity 11. The configuration of the first cavity 11 is not limited; it can be formed by the first connecting end 3012 of the first housing 301 and the interior of the second housing 101. For more specific details, see [link to documentation]. Figure 2 After the connecting portion 1011 of the cavity of the second housing 101 is connected to the first connecting end 3012, it forms the first cavity 11. (See also...) Figure 11 and Figure 13 The first housing 301 is provided with a wiring channel 3015, which connects the first cavity 11 and the outside of the first housing 301. One function of the wiring channel 3015 is to connect the interior of the first housing 301 and the interior of the second housing 101, so as to lead out at least a portion of the controlled object's cable within the second housing 101. In some embodiments, this means leading out at least a portion of the controlled object's cable from the second housing 101 (within the first cavity 11), and the location of the cable is not limited, for example, leading it to the outside of the first housing 301. Depending on the function of the wiring channel 3015, its configuration is not limited. For example, in one variation, the connecting portion 1011 protrudes towards the first housing 301, and this protruding portion is connected to the first connecting end 3012. The wiring channel 3015 passes through this protruding portion and the first connecting end 3012. That is, referring to… Figure 2 The connecting part 1011 changes from not protruding from the first housing 301 to protruding from the first housing 301.

[0071] The light source assembly 2 is located within the first cavity 11. The light source assembly 2 emits light for detection; in this case, the detector includes the light receiving assembly. The light source assembly 2 may also emit light for both sterilization and detection, or only for sterilization. In this case, since the light from the light source assembly is not used for detection, the detector may not include the light receiving assembly. The light receiving assembly receives the light emitted by the light source assembly 2. In some embodiments, the light receiving assembly includes a first light receiving assembly 61 and a second light receiving assembly 62, and there are two of them. In other detectors, there may be only one light receiving assembly. The first housing 301 also includes a through-type reference light channel 131. The light path from the light source assembly 2 through the object under test to the first light receiving assembly 61 is called the detection light path, and the light path from the light source assembly 2 through the reference light channel 131 to the second light receiving assembly 62 is called the reference light path. Correspondingly, the detector includes a light path switching device 5 corresponding to the reference light path and the detection light path. The light from the light source assembly 2 is directed to either the first light receiving assembly 61 or the second light receiving assembly 62 via the optical path switching device 5. The analyzer 7 receives the light from the light receiving assembly to obtain a detection result. In some embodiments, the analyzer 7 subtracts the detection result from the detection result of the detection optical path from the detection result of the reference optical path to obtain the detection result. The analyzer 7 is not limited; for example, it can be a spectrometer. In other embodiments, the detector may only have a detection optical path.

[0072] The controlled object is located within the first cavity 11. The controlled object includes the light source assembly 2, the motor 401 of the motor assembly, and the vibrating element 304, and may also include the photoelectric detection assembly 403. Of course, the controlled object is not limited to these; any object controlled by the controller can be called a controlled object. The cables of the controlled object include the cable 206 of the light source assembly 2, the cable of the motor 401 of the motor assembly, the cable of the photoelectric detection assembly 403, and the cable of the vibrating element 304. If the detector does not include any one or more of the motor assembly, photoelectric detection assembly, and vibrating element, the cables of the controlled object will correspondingly not include any one or more of these components. At least some of the cables of the controlled objects pass through the wiring channel 3015 and are connected to the controller. That is, the cables of the controlled objects passing through the wiring channel 3015 can mean that all the cables of the controlled objects pass through the wiring channel 3015, or that only some of the cables of the controlled objects pass through the wiring channel 3015. For example, in the aforementioned embodiment, the cables 206 of the light source assembly 2 and the motor cables may pass through the wiring channel 3015, while the cables of other controlled objects may not pass through the wiring channel 3015. Alternatively, only the cable 206 of the light source assembly 2 may pass through the wiring channel 3015, while the cables of other controlled objects are connected to the controller in other ways. In either case, the separation element must ensure that the cables of the controlled objects do not block the light emitted by the light source assembly 2.

[0073] See Figure 11 The detector also includes a separator 2025. The separator 2025 can be mounted to the light source assembly 2 via a mounting structure. The mounting structure is not limited; for example, when the separator 2025 is mounted to the collimating lens mount 204, the two can be installed using a flange and bolts, but this is not a limitation. The separator 2025 is also located within the first cavity 11. After the separator 2025 is installed, the cable of the controlled object is located on the separator 2025, causing the cable of the controlled object to deviate from the optical path formed by the light from the light source assembly 2. The structure of the separator 2025 is not limited, as long as it achieves the aforementioned function.

[0074] As described above, by setting the separator 2025, at least a portion of the cable of the controlled object is located on the separator 2025, so that the cable is deviated from the optical path formed by the light rays, and at least a portion of the cable of the controlled object passes through the wiring channel 3015 to connect with the controller. This avoids the cable of the controlled object from getting tangled and located in the optical path of the light source assembly 2 when the first housing 301 and the second housing 101 are connected by rotation. Thus, the cable of the controlled object will not block the light (for example, in the embodiment of this application, it prevents the internal twisted wire from blocking the collimating lens 203), ensuring high accuracy of the detection results of the detector. However, without the separator 2025, when the first housing 301 and the second housing 101 are connected by rotation, the cable of the controlled object will get tangled as the first housing 301 rotates (for example, blocking the collimating lens 203 due to tangling), blocking the light and causing low accuracy of the detection results.

[0075] In addition, some features of the detector are described below: See Figure 3 and Figure 13 The first housing 301 includes a first housing body 3011, a first connecting end 3012, and a second connecting end 3013. The first connecting end 3012, the second connecting end 3013, and the first housing body 3011 form a detection space 3014 for accommodating the object to be tested. For example, when the detector is used to detect water quality, see also... Figure 6 , Figure 10 and Figure 20 For the detection optical path, the detector is placed in water. The light emitted by the light source component 2 passes through the water in the detection space 3014 (the water is the object being measured) through the window 302 on one side and then shines on the optical path switching device 5 through the window 302 on the other side.

[0076] In the above embodiment, the detector includes components such as a light source assembly 2, a reference light channel 131, an optical path switching device 5, a first light receiving assembly 61, and a second light receiving assembly 62 to form a reference light path and a detection light path. Thus, the light emitted from the same light source assembly 2 is divided into two paths (the reference light path and the detection light path), which are independent of each other. The final result of the detector is the absolute difference between the detection result obtained from the detection light path and the reference result obtained from the reference light path. Factors affecting the accuracy of the detection result (such as the instability of the light source assembly 2, energy attenuation, stray light, etc.) can be eliminated by the difference. Therefore, the detector can improve the accuracy of the detection result. Furthermore, the reference light channel 131 is isolated from the outside of the detector. During the transmission of light from the light source assembly 2 to the second light receiving assembly 62 through the reference light channel 131, the light is confined within the reference light channel 131. On the one hand, it is not affected by external light; on the other hand, it does not cause light leakage or other factors, thus preventing a decrease in light energy. This ensures the accuracy of the reference result and further ensures high accuracy of the detection result.

[0077] Of course, to avoid the cables of the controlled object blocking the light source assembly 2, the detector may not include a reference optical path, as long as it can detect the object under test through light. If the light source assembly 2 only emits light for sterilization, the detector can also use other detection methods to detect the object under test.

[0078] In some embodiments, the detector housing includes a first cavity 11 accommodating the light source assembly 2; the viewing window 302 is assembled on the cavity wall of the first cavity 11; the separator 2025 includes a separator cavity 20251, the separator cavity 20251 extending through the separator 2025, and light from the light source assembly 2 passing through the separator cavity 20251 and exiting from the viewing window 302. The separator 2025 includes at least one of the following features:

[0079] a) See Figure 11 and Figure 10 The two ends of the separator 2025 are respectively sealed to the cavity walls of the light source assembly 2 and the first cavity 11, forming a sealed cavity after sealing. The sealing method is not limited, as long as it achieves the subsequent function; for example, the seal can be achieved through contact. The separator cavity 20251 is part of the sealed cavity, so that the light from the light source assembly 2 passes through the separator cavity 20251 and exits from the viewing window 302.

[0080] As described above, by forming the sealed cavity, the light is confined within the sealed cavity, preventing diffuse reflection and other issues. Consequently, the separator 2025 also ensures that the second light receiving component receives stronger energy, guaranteeing high accuracy of the detection results.

[0081] b) See also Figure 17 The separator 2025 includes a separator body 20252, which has a separator cavity 20251. The separator 2025 also includes side portions 20253 located at opposite ends of the separator body 20252. The side portions 20253 and the separator body 20252 form an I-shape, and the separator body 20252 and the side portions 20253 enclose a cable groove 20254 for accommodating the cable. The I-shape is not limited to each side being a single plate; the side portions can also be circumferentially spaced on the separator body.

[0082] c) See also Figure 18 In another embodiment, the separator 2025 includes a side portion 20253 located on the separator body 20252. The side portion 20253 and the separator body 20252 form a T-shape. When the separator 2025 is assembled with the light source assembly 2, a cable groove 20254 for accommodating the cable is formed between the separator body 20252, the side portion 20253, and the light source assembly 2.

[0083] For the two types of separators 2025 mentioned above (b and c), as described in a, both ends of the separator 2025 can be sealed and connected to the cavity wall of the light source assembly 2 and the first cavity 11, respectively. Alternatively, one side 20253 can be not sealed and connected to the side wall of the first cavity 11 used for installing the viewing window 302, or the other side of the separator 2025 can be not sealed and connected to the light source assembly 2. In short, as long as the separator 2025 can prevent the cable of the controlled object from blocking the light, it is acceptable.

[0084] As described above, for the separator 2025 in embodiments b and c, during the relative rotation of the first housing 301 and the second housing 101, the cable (e.g. Figure 17 and Figure 18 (As shown by the dashed line) The cable is wrapped around the separator body 20252 and located within the cable tray 20254. Thus, the cable is blocked by the side portion 20253 and will not obstruct light. For example, the cable of the controlled object will not block the light emitted through the collimating lens 203 (i.e., the light emitted by the light source assembly 2) and affect imaging. Furthermore, since the cable is housed within the cable tray 20254, it is suitable for situations with a large number of cables.

[0085] For the separator 2025 in the above three embodiments, the inner wall of the separator cavity 20251 includes a black borax layer, which can be formed by coating or other methods. Alternatively, the separator can be black foam or black silicone.

[0086] As described above, since the inner wall of the cavity of the separator includes a black borax layer, black foam or black silicone, the black borax layer can absorb more light and reduce directional reflection, which makes the energy of the light source component 2 to the window 302 stronger.

[0087] See Figure 5 The detector includes a cable limiting mechanism 2024. In some embodiments, the cable limiting mechanism 2024 is disposed within the first cavity 11, including two cases: First, the component located within the first cavity 11 is provided with the cable limiting mechanism 2024. For example, in this application, the cable limiting mechanism 2024 is disposed on the light-emitting lamp fixing member 202, but it is not limited thereto. Second, the second housing 101 itself is provided with the cable limiting mechanism 2024. One function of the cable limiting mechanism 2024 is to limit the cable to a specific position. For example, the cable limiting mechanism 2024 also includes a fixing member. The cable is fixed to a certain position by the fixing member. Of course, it is also possible to directly place the cable within the cable limiting mechanism without a fixing member. With the light propagation direction of the light source assembly 2 as the front, the cable limiting mechanism 2024 is located behind the separator 2025, and the cable is limited by the cable limiting mechanism 2024.

[0088] As described above, the cable limiting mechanism 2024 is located behind the separator 2025 and is used to limit the cable. In this way, after the cable is limited, during the rotation of the first housing 301 and the second housing 101, the cable is more likely to avoid tangling and deviating from the light path of the light source component 2, and will not be located on the light path of the light source component 2, nor will it block the light (for example, in the embodiment of this application, to prevent the internal twisted wire from blocking the collimating lens 203), thereby ensuring high accuracy of the detection results.

[0089] See Figure 5 , Figure 7 and Figure 8 The light source assembly 2 includes a light-emitting lamp 201, a light-emitting lamp fixing component 202, a collimating lens 203, and a collimating lens mount 204. The light-emitting lamp 201 emits light for sterilization; the light source is not limited, for example, ultraviolet light with a wavelength range of 190mm-900nm. Of course, besides sterilization, by adjusting the wavelength of the light, it can also be used for other purposes; for example, the light source assembly 2 can also be used as a light source for water quality detection. Both the light-emitting lamp 201 and the collimating lens mount 204 are mounted on the light-emitting lamp fixing component 202, and the method of fixing is not limited. The light-emitting lamp 201 is not limited, as long as it can emit light for sterilization, for example, a xenon lamp. The light-emitting lamp fixing component 202 is mounted on the detector housing 1 (first housing 301 or second housing 101). See also... Figure 4 and Figure 9The vibrating element 304 includes a through hole 3041. The collimating lens 203 is mounted on the collimating lens mount 204 and collimates the light emitted by the light-emitting lamp 201. The collimated light then passes through the through hole 3041 and is directed towards the viewing window 302. See also... Figure 5 The cable limiting mechanism 2024 is disposed on the light lamp fixing member 202. Those skilled in the art will understand that the cable limiting mechanism 2024 can be disposed on at least one of the light lamp fixing member 202, the collimating lens mount 204, and the light lamp 201.

[0090] As described above, the cable limiting mechanism 2024 is disposed at at least one of the light-emitting lamp fixing member 202, the collimating lens seat 204, and the light-emitting lamp 201. Combined with the fact that the cable limiting mechanism is located behind the separator 2025, and there is a certain distance between the cable limiting mechanism 2024 and the collimating lens 203, and with the blocking effect of the separator 2025, the cable can be prevented from getting tangled and located on the optical path of the collimating lens 203, and the light will not be blocked, thereby ensuring high accuracy of the detection results.

[0091] The light source assembly 2 includes at least one of the features described in a, b, c, and d below:

[0092] a) See also Figure 5 The cable limiting mechanism is a through hole. For example, when the cable limiting mechanism is provided on the light-emitting lamp fixing member 202, the through hole penetrates the light-emitting lamp fixing member 202. This through hole can be along the light propagation direction of the light source assembly 2, or it can be not along the light propagation direction of the light source assembly 2. In this case, the through hole can be a notch located at the edge of the light-emitting lamp fixing member 202, or it can be a non-notch. Correspondingly, when the cable limiting mechanism 2024 is provided on the light-emitting lamp 201 or the collimating lens seat 204, the through hole correspondingly penetrates the light-emitting lamp 201 or the collimating lens seat 204. When the cable limiting mechanism 2024 is a notch, after the cable is located within the notch, it can be fixed by a fixing member, or it can be directly limited by the notch without being fixed by a fixing member.

[0093] As described above, since the cable fixing mechanism 2024 is a through hole (for example, a notch located at the edge of the light lamp fixing member 202), the limiting effect of the through hole can make the cable deviate from the light path of the light source assembly 2, and further prevent the cable from being entangled and located on the light path of the light source assembly 2 during the relative rotation of the first housing 301 and the second housing 101, thus avoiding blocking the light path (blocking the collimating lens 203), thereby ensuring high accuracy of the detection results.

[0094] b) The collimating lens mount 204 is threadedly connected to the light lamp fixing member 202.

[0095] As described above, the detector also includes a light source assembly 2. The light source assembly 2 emits light rays for sterilization, which then shines on the viewing window 302 to sterilize it. This, combined with the aforementioned vibrating element 304 driving the viewing window 302 to vibrate and clean it, results in a better cleaning effect on the viewing window 302. Furthermore, by threading the collimating lens mount 204 to the light-emitting lamp fixing element 202, the distance between the collimating lens 203 and the light-emitting lamp 201 can be adjusted, thereby ensuring that the collimating lens 203 receives the strongest light energy, and consequently, the strongest energy is directed towards the viewing window 302, achieving a better sterilization and cleaning effect.

[0096] c) See also Figure 5 The light-emitting lamp holder 202 and the light-emitting lamp 201 are limited by two limiting mechanisms. The specific structure of the limiting mechanisms is not limited, as long as they can achieve the limiting effect. In some embodiments, each limiting mechanism includes a limiting hole disposed on one of the light-emitting lamp holder 202 and the light-emitting lamp 201, and a limiting post 2011 disposed on the other. In the figure, the limiting post 2011 is disposed on the light-emitting lamp 201. The structure of the limiting post is not limited; for example, it can be a limiting pin. During assembly, the limiting post 2011 is inserted into the limiting hole to achieve the limiting effect. The light-emitting lamp holder 202 and the light-emitting lamp 201 are also fixed together by two fixing mechanisms. The fixing mechanisms are not limited, as long as they can fix the two together. In some embodiments, each fixing mechanism includes a first fixing hole 2012 disposed on the light-emitting lamp 201, a second fixing hole (not shown in the figure) disposed on the light-emitting lamp holder 202, and a fixing screw 2023. After the fixing screw 2023 passes through the second fixing hole, it locks into the first fixing hole 2012, thus fixing the light lamp fixing component 202 and the light lamp 201 together.

[0097] The lines connecting the two limiting mechanisms and the two fixing mechanisms form a square, or a rhombus, etc. Regardless of the shape, the lines connecting the two fixing mechanisms and the two limiting mechanisms are diagonals, and the intersection of the two diagonals and the lamp bead 2010 of the light-emitting lamp 201 are located on the optical axis of the collimating lens 203.

[0098] As described above, the line connecting the limiting mechanism and the fixing mechanism is a diagonal, and the intersection of the diagonals and the lamp bead 2010 of the light-emitting lamp 201 are located on the optical axis of the collimating lens 203. In this way, the collimating lens 203 has a better collimation effect on the light emitted by the light-emitting lamp 201, and can better ensure the sterilization effect on the window 302.

[0099] d) The separator 2025 is disposed circumferentially on the collimating lens mount 204 and extends out of the collimating lens mount 204 along the direction of light propagation. For example, in this case, the separator cavity 20251 of the separator 2025 is cylindrical.

[0100] As described above, since the collimating lens 203 is mounted on the collimating lens mount 204, and the separator 2025 is disposed circumferentially on the collimating lens mount 204 and extends out of the collimating lens mount 204 along the light propagation direction, it is equivalent to the separator 2025 being located circumferentially on the optical path. The separator 2025 can better avoid cable entanglement and is located on the collimating lens 203, and will not block the light, thereby ensuring high accuracy of the detection results.

[0101] e) See also Figure 5 and Figure 8 The collimating lens mount 204 includes a lens mounting cavity 2041. The collimating lens 203 is fixed to the lens mounting cavity 2041 by adhesive dispensing. The cavity wall of the lens mounting cavity 2041 includes a through hole 2042. The through hole 2042 connects the interior of the lens mounting cavity 2041 and the exterior of the collimating lens mount 204. The structure of the through hole 2042 is not limited; it can be a notch as shown in the figure or other shapes, as long as it allows the adhesive to flow to the exterior of the collimating lens mount 204.

[0102] As described above, since the through hole 2042 connects the outside of the lens mounting cavity 2041 and the collimating lens mount 204, when the collimating lens 203 is fixed in the lens mounting cavity 2041 by dispensing adhesive, excess adhesive can flow out from the through hole 2042 without contaminating the collimating lens 203, thus ensuring the collimation effect.

[0103] See Figure 12 and Figure 16The detector includes a housing cover 103 and a housing sealing ring 102. The housing sealing ring 102 has an n-shaped cross-section and includes a base 1021, a first side portion 1022, a second side portion 1023, and a rib 1024. The first side portion 1022 and the second side portion 1023 are located on opposite sides of the base portion 1021, and the rib 1024 is disposed on the second side portion 1023. The top surface of the compartment wall of the receiving chamber 12 is provided with a groove, the first side portion 1022 fits against the inner surface of the compartment wall 122, and the second side portion 1023 is engaged in the groove. When the housing cover 103 covers the second housing 101, the rib 1024 abuts against the housing cover 103 and is opposite to the groove. Although the above embodiment describes the housing 12, those skilled in the art will understand that the housing cover 103 and the housing sealing ring 102 actually seal the interior of the second housing 101. Therefore, the top surface of the housing wall refers to the top surface of the cavity wall of the second housing.

[0104] As described above, since the second side portion 1023 is engaged in the groove, the first side portion 1022 is in contact with the inner side of the wall 122 of the receiving chamber 12. In this way, the housing sealing ring 102 can be easily installed in the receiving chamber 12 (or the second housing 101). When this structure is combined with the housing cover 103 assembled with the second housing 101, the rib 1024 abuts against the housing cover 103, which provides a good sealing effect for the receiving chamber 12 and effectively prevents water from entering the receiving chamber 12.

[0105] See Figure 2 , Figure 3 and Figure 8The first housing 301 includes a first connecting end 3012 and a second connecting end 3013. The first connecting end 3012 and the second connecting end 3013 have multiple threaded grooves along the length of the first housing 301. The first connecting end 3012 is used to connect to the second housing 101. The second connecting end 3013 is used to connect to the third housing 501. The connection methods at both ends are the same; only the connection between the first connecting end 3012 and the second housing 101 is described as follows: The detector includes a radial sealing ring 81 and an end face sealing ring 82. There are two radial sealing rings 81 and one end face sealing ring 82, but the number is not limited to these. The radial sealing ring 81 and the end face sealing ring 82 are located in different threaded grooves. The second housing 101 includes a connecting portion 1011. The wiring channel 3015 passes through the first connecting end 3012 and the connecting portion 1011. After the first housing 301 (first connecting end 3012) and the second housing 101 (connecting part 1011) are tightened together, the radial sealing ring 81 and the end face sealing ring 82 are clamped between the first connecting end 3012 of the first housing 301 and the connecting part 1011 of the second housing 101. Of course, the radial sealing ring 81 and the end face sealing ring 82 at the other end are clamped between the second connecting end 3013 of the first housing 301 and the connecting part of the third housing 501.

[0106] As described above, by setting up a radial sealing ring 81 and an end face sealing ring 82, the radial sealing ring 81 and the end face sealing ring 82 are clamped between the first housing 301 and the second housing 101, resulting in a good sealing effect and preventing water from entering the first cavity 11. Similarly, if the first housing 301 and the third housing 501 are also connected in the aforementioned manner, due to the effect of the radial sealing ring 81 and the end face sealing ring 82, nothing will enter the third housing 501, which can also be understood as entering the third cavity 13.

[0107] See Figure 7 , Figure 8 , Figure 10 and Figure 20 and combined Figure 3 The detector includes a second cavity 13 that houses the light receiving component. The configuration of the second cavity 13 is not limited and can be formed by the second connection end 3013 of the third housing 501 and the first housing 301. Each of the first cavity 11 and the second cavity 13 has a viewing window mounting hole 3010 on its cavity wall. The two viewing window mounting holes 3010 face each other, and the axis of each viewing window mounting hole 3010 is parallel to the optical axis of the light source component 2, which can be considered as the optical axis of the collimating lens 203.

[0108] The detector includes two windows 302 through which the light from the light source assembly 2 passes. Specifically, the light emitted from the light source assembly 2 passes through the window 302 on the wall of the first cavity 11, and then through the window 302 on the wall of the second cavity 13 before being received by the light receiving assembly. Each window 302 includes a window body 3023 and a shoulder 3024 located circumferentially around the window body 3023. The shoulder 3024 includes an edge 3021 enclosed by the elastic member 303. Each window body 3023 is assembled with a window mounting hole 3010 via a hole-shaft fit. Each shoulder 3024 abuts against the edge of a window mounting hole 3010.

[0109] As described above, since the window body 3023 and the window mounting hole 3010 are assembled through a shaft hole, and the axis of each window mounting hole 3010 is parallel to the optical axis of the light source assembly 2, the aforementioned assembly relationship and structure facilitate the perpendicular projection of the light emitted by the light source assembly 2 onto the window 302. Moreover, the hole-axis assembly also facilitates the assembly of the window 302.

[0110] See Figure 2 , such as 7, Figure 8 , Figure 14 and Figure 15 The detector includes a motor assembly 40 and a wiper assembly 41. The motor assembly 40 includes a motor 401, a motor bracket 402, a coupling 404, and a drive shaft 405. The motor 401 is assembled onto the motor bracket 402. In some embodiments, the motor bracket 402 may be omitted; a corresponding structure can be formed on the detector housing 1 for the motor 401 to assemble. The drive shaft 405 can be a separate shaft or an integral structure with the motor shaft of the motor 401, i.e., the drive shaft 405 is a section of the motor shaft. When the drive shaft 405 is a separate structure, one end of the drive shaft 405 is connected to the wiper assembly, and the other end is connected to the coupling 404, which in turn is connected to the motor shaft of the motor 401. The wiper assembly is connected to the motor shaft of the motor, as described above, via the drive shaft 405 and the coupling 404. Of course, the connection method is not limited to this.

[0111] The wiper assembly 41 includes a wiper 406 and a wiper bracket 407. The wiper bracket 407 is connected to a drive shaft 405. The wiper 406 is mounted on the wiper bracket 407, for example, by interlocking into the wiper mounting groove of the wiper bracket 407. The motor 401 drives the wiper 406 of the wiper assembly to reciprocate between a first position and a second position. During the reciprocating motion, the wiper 406 wipes the viewing window 302. In this application, the wiper 406 interferes with the viewing window 302, thus, the wiper 406 wipes the viewing window 302 during the reciprocating motion.

[0112] See Figure 15 The detector includes a photoelectric detection component 403. The controlled object includes the motor of the motor assembly 40 and the photoelectric detection component 403, which are connected to the controller. The photoelectric detection component 403 is used to detect the swing range of the wiper 406 of the wiper assembly 41, thereby determining whether the wiper 406 has rotated to the first position and the second position. In this application, the detector includes two photoelectric detection components 403 and a blocking component 408. The photoelectric detection component 403 is a photoelectric switch. One photoelectric detection component 403 corresponds to the first position, and the other photoelectric detection component 403 corresponds to the second position. Each photoelectric detection component 403 is connected to the controller and includes a signal transmitting component and a signal receiving component. The blocking component 408 is connected to the motor shaft of the motor and rotates synchronously with the wiper assembly. At the first position or the second position, the blocking component 408 cuts off the signal transmission path between the signal transmitting component and the signal receiving component. In other words, at the first position, the signal transmitted by the signal transmitting component is blocked by the blocking component 408, and the signal receiving component cannot receive the signal. Therefore, the controller determines that the wiper 406 has rotated to the first position. Similarly, when the wiper 406 rotates to the second position, the signal receiving component cannot receive the signal transmitted by the signal transmitting component, and the controller determines that the wiper has rotated to the second position. Thus, the wiper 406 constantly swings back and forth between the first and second positions to clean the viewing window 302. Based on the above-mentioned function of the blocking component 408, the structure of the blocking component 408 is not limited. Since the signal transmitting component and the signal receiving component of the photoelectric detection assembly 403 are arranged opposite each other in the vertical direction, when the blocking component 408 is Z-shaped, with one end connected to the motor shaft and the other end located between the signal transmitting component and the signal receiving component, it cuts off the signal transmission path between the signal transmitting component and the signal receiving component. As described above, the detection of the rotation position of the wiper 406 by the shielding member 408 and the photoelectric detection component 403 ensures that the wiper 406 always swings back and forth between the first position and the second position, which can clean all areas of the window 302 and achieve a good cleaning effect.

[0113] As described above, the motor 401 drives the wiper 406 to sweep the viewing window 302, and the photoelectric detection component 403 restricts the wiper component 41 to swing between a first position and a second position. Combined with the vibrating component 304 causing the viewing window 302 to vibrate, the cleaning of the viewing window 302 is achieved. These two methods result in a better cleaning effect. Furthermore, the aforementioned light source component 2 is used for sterilization, and the combination of these three elements further enhances the cleaning effect.

[0114] See Figure 7 , Figure 8 , Figure 16 and Figure 2 The detector housing includes an opaque receiving chamber 12 and a first cavity 11, with the light source assembly 2 located within the first cavity 11; of the motor assembly 40 and the photoelectric detection assembly 403, at least the photoelectric detection assembly 403 is located within the receiving chamber 12, including the following situations: a) see Figures 7 to 10 a) Both the motor assembly 40 and the photoelectric detection assembly 403 are located within the receiving chamber 12; b) Only the photoelectric detection assembly 403 is located within the receiving chamber 12, and the motor assembly 40 is not located within the receiving chamber 12.

[0115] As described above, on the one hand, the aforementioned opaque first cavity 11 and receiving chamber 12 ensure that the light emitted by the photoelectric detection component 403 does not interfere with the light emitted by the light source component 2. The light emitted by the photoelectric detection component 403 will not affect the light emitted by the light source component 2, thus not affecting the subsequent signal acquisition and ensuring high accuracy of the detection results. On the other hand, at least the photoelectric detection component 403 is located within the receiving chamber 12 as one module, and the light source component 2, etc., are located within the first cavity 11 as another module. Therefore, the detector adopts a modular design, allowing for individual repair of a module without affecting other modules, facilitating replacement and maintenance.

[0116] See Figure 1 and combined Figure 7 The receiving chamber 12 and the first cavity 11 are arranged side by side in the first direction R. In the figure, the opening of the receiving chamber 12 serves as the opening of the cavity and communicates with the outside of the second shell, but this is not a limitation; it could also be that the first cavity 11 communicates with the outside. The first direction R is perpendicular to the direction of light propagation T.

[0117] As described above, the receiving chamber 12 and the first cavity 11 are arranged side by side, allowing components such as the motor assembly 40 and the light source assembly 2 to be located at one end of the detector. This ensures that, when the detector is in use, it is positioned vertically (equivalent to...). Figure 7 and Figure 10Rotating 90 degrees), the two windows are vertically spaced apart. Due to gravity, dirt and sand will not accumulate on the upper window but will mainly accumulate on the lower window. The motor assembly 40 can also drive the wiper assembly with less force to clean the dirt and sand on the lower window 302 (for example, in some cases, only the lower window needs to be cleaned). On the other hand, it also makes the detector more aesthetically pleasing. If they are not arranged side by side, but the motor assembly is placed in, for example... Figure 10 At the DD line position, the detector housing will protrude to accommodate motor components, etc. This results in a housing that is higher in the middle and lower at both ends, which is unsightly. If not installed side-by-side, the detectors may appear as follows during use: Figure 10 As shown in the diagram, in this state, mud and sand easily accumulate between the two windows 302, and the wipers need to clean both windows.

[0118] In an embodiment of this application, the motor assembly 40 is located within the first cavity 11 of the detector housing (which may be a compartmentalized design of the aforementioned receiving chamber and the first cavity, or it may not be a compartmentalized design), and... Figure 19 Compared to the illustrated implementation, the motor assembly 40 will not shift, and the cable of the motor assembly 40 can also be routed through the wiring channel, resulting in higher reliability. For example, if the motor assembly 40 is located outside the detector housing, when the detector is used in water, the motor assembly 40 will move due to external forces (such as the force of water flow), which will inevitably pull on the cable and lead to low reliability.

[0119] For the detector, the detector also includes at least one of the following features:

[0120] a) See Figure 1 , Figure 2 , Figure 7 and Figure 8 The detector includes a protective mesh cover 8, which is connected to the detector housing 1. For example, the protective mesh cover 8 is fixed to the detector housing 1 by screws. It covers the motor assembly located outside the detector housing and the wiper assembly 41.

[0121] When the detector is used for underwater water quality testing, the underwater environment is complex. If large algae or plankton become entangled in the wiper 406, or if large rocks or sediment interfere with the wiper assembly 41, the wiper assembly will fail to start, causing the wiper 406 to malfunction. As described above, a protective mesh cover 8 is installed to prevent large algae, rocks, or plankton from getting caught in the wiper during operation, causing motor malfunction (e.g., the wiper cannot rotate), thus extending the wiper's maintenance cycle. The mesh openings on the protective mesh cover can both block organisms of a certain particle size and reduce water flow resistance, preventing damage to the wiper 406 and ensuring its cleaning ability. Based on the function of the protective mesh cover 8, the diameter of the mesh openings is not limited; for example, the mesh size can be 3mm.

[0122] b) See also Figure 7 , Figure 8 , Figure 16 and Figure 2 The receiving chamber 12 has a connecting hole 1012 in its wall, which connects the interior of the receiving chamber 12 to the exterior of the detector. The wiper assembly 41 and the motor assembly 40 are connected through the connecting hole 1012. The detector includes a sealing assembly. The sealing assembly is assembled to the wall of the receiving chamber 12 and seals the connecting hole 1012. More specifically, the detector includes a drive shaft 405, a motor of the motor assembly, and a wiper assembly. The drive shaft 405 can be a section of the motor shaft or an independent shaft, and the motor and wiper assembly are connected through the drive shaft 405. The drive shaft 405 passes through the sealing assembly and through the connecting hole 1012. In some embodiments, the sealing assembly includes a seal 104 (oil seal) and a seal cover 105 (oil seal cover). In this case, after the seal 104 (oil seal) is inserted into the connecting hole 1012, the seal cover 105 is then placed on top to secure it, thereby achieving a seal.

[0123] As described above, the detector operates underwater. The resistance experienced by the wiper assembly during its oscillation is greater than when the detector is not underwater, making the sealing assembly prone to damage. By providing a first, opaque cavity 11 and a receiving chamber 12, on the one hand, replacing the sealing assembly will not affect the light source assembly 2, etc., facilitating component replacement. On the other hand, for the detection device as a whole, the motor assembly 40 and the light source assembly 2 are located at the same end of the detection device, making them relatively heavy. This makes it easier to keep the detection device in a vertical position when placed underwater, facilitating detection.

[0124] In other embodiments, the window 302 includes an outer surface that comes into contact with water. This outer surface is covered with a hydrophobic layer, such as an AF coating.

[0125] As described above, by setting a hydrophobic layer, the adhesion of early microorganisms or algae to the window 302 can be weakened, thereby playing a role in preventing the window 302 from getting dirty and helping to keep the window 302 clean.

[0126] See Figure 13 , Figure 7 and Figure 8 The detector includes a light source assembly 2, a first light receiving assembly 61, a second light receiving assembly 62, an optical path switching device 5, and an analyzer 7. A reference optical channel 131 is disposed within the detector housing, and the reference optical channel 131 is isolated from the outside of the detector. The reference optical channel 131 can be disposed in any component of the detector housing; in some embodiments, the reference optical channel 131 extends through the first housing 301. The optical path from the light source assembly 2 through the object under test to the first light receiving assembly 61 is called the detection optical path, and the optical path from the light source assembly 2 through the reference optical channel 131 to the second light receiving assembly 62 is called the reference optical path. The optical path switching device 5 corresponds to the reference optical path and the detection optical path, selectively transmitting the light to the first light receiving component 61 and the second light receiving component 62. That is, the light from the object under test is transmitted to the first light receiving component 61 through the optical path switching device 5, and the light from the reference optical channel 131 is transmitted to the second light receiving component 62 through the optical path switching device 5. The first light receiving component 61 and the second light receiving component 62 are respectively connected to the analyzer 7. Thus, the analyzer 7 receives the light from the first light receiving component 61 or the light from the second light receiving component 62 to obtain a detection result. In some embodiments, the analyzer 7 subtracts the detection result of the detection optical path from the detection result of the reference optical path to obtain the detection result.

[0127] In the above embodiment, the detector includes components such as a light source assembly 2, a first light receiving assembly 61, and a second light receiving assembly 62 to form a reference optical path and a detection optical path. Thus, the light emitted from the same light source assembly 2 is divided into two paths (the reference optical path and the detection optical path), which are independent of each other. The final result of the detector is the absolute difference between the detection result obtained from the detection optical path and the reference result obtained from the reference optical path. Factors affecting the accuracy of the detection result (such as the instability of the light source assembly 2, energy attenuation, stray light, etc.) can be eliminated by subtraction. Therefore, the detector can improve the accuracy of the detection result. Furthermore, the reference optical channel 131 is isolated from the outside of the detector. During the transmission of light from the light source assembly 2 to the second light receiving assembly 62 through the reference optical channel 131, the light is confined within the reference optical channel 131. On the one hand, it is not affected by external light; on the other hand, it does not cause light leakage or other factors that reduce light energy. This ensures the accuracy of the reference result and further ensures high accuracy of the detection result.

[0128] See Figure 21 Both the first optical receiving component 61 and the second optical receiving component 62 include a focusing lens 601, a focusing lens mount 603, and an optical fiber adapter 602. In other embodiments, at least one of the first optical receiving component 61 and the second optical receiving component 62 includes the focusing lens 601, the focusing lens mount 603, and the optical fiber adapter 602. Figure 21 In this embodiment, two focusing lens mounts 603 are merged into one unit. In other embodiments, the focusing lens mount 603 may also be a separate structure. The focusing lens 601 is assembled to the focusing lens mount 603, for example, by adhesive. One of the focusing lens mount 603 and the fiber optic adapter 602 is provided with a mounting shaft 6021, and the other is provided with a mounting hole 6031. The mounting shaft 6021 and the mounting hole 6031 are engaged by a hole-shaft and fixed by a fixing structure. That is, the distance between the fiber optic adapter 602 and the focusing lens mount 603 is adjusted by varying the depth to which the mounting shaft 6021 is inserted into the mounting hole 6031. The fixing structure is not limited, as long as it can fix the fiber optic adapter 602 and the focusing lens mount 603 relative to each other. In this application, the fixing structure includes screw holes 6032 and fastening screws provided in the focusing lens mount 603. The three screw holes 6032 are distributed at 120 degrees. After the distance between the fiber optic adapter 602 and the focusing lens mount 603 is adjusted to the required distance, the fastening screws pass through the screw holes 6032 and are tightened to lock the fiber optic adapter 602 and the focusing lens mount 603. See also Figure 20 Two fiber optic adapters 602 are connected to the analyzer 7 via Y-shaped optical fibers 604. In addition, the focusing lens 601 is fixed on the focusing lens mount 603. Therefore, by adjusting the distance between the fiber optic adapter 602 and the focusing lens mount 603, that is, by adjusting the distance between the focusing lens 601 and the Y-shaped optical fiber 604, the energy of the light output port of the fiber optic adapter 602 can be increased.

[0129] As described above, by adjusting the distance between the fiber optic adapter 602 and the focusing lens mount 603, the energy of the focusing lens 601 at the output port of the fiber optic adapter 602 is maximized. This ensures strong energy reaching the analyzer 7, which is beneficial for ensuring high accuracy of the detection results, improving product consistency (each detector can reach its maximum energy), reducing the high-precision positioning requirements of optical components (because even if there is a positioning error, it can be overcome through the aforementioned adjustment), and reducing the difficulty and cost of structural processing. Furthermore, the use of a hole-shaft fit between the fiber optic adapter 602 and the focusing lens mount 603 to adjust the relative distance, compared to using a threaded fit, does not lead to a weakening of the energy reaching the analyzer 7, and therefore does not result in low detection accuracy. This is because if a threaded rotational fit is used, the fiber optic cable may become entangled during rotation, affecting the transmission signal of the fiber optic cable and causing a significant weakening of the energy signal entering the analyzer 7 from the output port, thus resulting in low detection accuracy.

[0130] See Figure 7 , Figure 8 and Figure 10 There are two optical path switching devices 5, one directly opposite the first light receiving component 61 and the other opposite the reference light channel 131. Specifically, one optical path switching device 5 is located between the object under test and the first light receiving component 61, and the other is located between the second light receiving component 62 and the reference light channel 131. The optical path switching device 5 may be, for example, a photoelectric baffle. Both optical path switching devices 5 are connected to the controller, and under the control of the controller, one of them is selectively turned on or off. That is, either the optical path switching device 5 corresponding to the reference light path is off while the optical path switching device 5 corresponding to the detection light path is on, or the optical path switching device 5 corresponding to the reference light path is on while the optical path switching device 5 corresponding to the detection light path is off.

[0131] As described above, since there are two optical path switching devices 5, one can be turned on or off under the control of the controller. Compared with using only one optical path switching device 5, it is easier to control the switching of the optical path and ensure high detection accuracy. This is because if only one optical path switching device 5 is used, the optical path may not be completely cut off, resulting in optical path crosstalk and ultimately low detection accuracy.

[0132] For variations of the aforementioned detection optical path and reference optical path, see [link to relevant documentation]. Figure 22The detection device includes a receiving reflector (e.g., a first receiving reflector 91 and a second receiving reflector 92), an optical path switching device 5, an optical receiving assembly 6, and an analyzer 7. In this embodiment, there is only one optical receiving assembly 6. The first housing includes a through-type reference optical channel 131. The reference optical channel 131 is isolated from the outside of the detection device. The light emitted by the light source assembly 2 passes through the reference optical channel 131, and the light emitted by the light source assembly 2 passes through the object being measured, i.e., as shown in the image. Figure 22 As shown, the light passes through the detection space 3014. Figure 22 In this embodiment, the receiving end reflector is positioned between the light receiving component 6 and the reference light channel 131. The difference between this embodiment and the previous one is that by setting the receiving end reflector and cooperating with the light path switching device 5, the propagation direction of one of the light rays in the detection light path and the reference light path can be changed, thus allowing the use of only one light receiving component 6. Therefore, in some other embodiments, the receiving end reflector can be positioned between the object under test and the light receiving component 6 (which can also be understood as...). Figure 22 Between the detection space 3014 and the light receiving component 6, the light from the reference light channel 131 can either directly strike the light receiving component 6 or be reflected by the reflector. Based on this, one of the light from the reference light channel 131 and the light from the object under test is transmitted to the receiving end reflector via the optical path switching device 5, and then to the light receiving component 6. The other of the light from the reference light channel 131 and the light from the object under test is transmitted to the light receiving component 6 via the optical path switching device 5. The light receiving component 6 is connected to the analyzer 7. The propagation direction of the light in the reference light path can be seen in... Figure 22 As shown by the solid arrow, the direction of light propagation in the detection optical path can be found in [reference needed]. Figure 22 As shown by the dashed arrow.

[0133] As described above, this implementation can eliminate one optical receiving component by changing the propagation direction of one of the reference optical path and the detection optical path and combining it with the optical path switching device 5. Furthermore, compared with the aforementioned implementation, only a straight optical fiber is needed to connect to the analyzer 7, and the Y-shaped optical fiber connection is no longer required. This can eliminate errors caused by differences between individual optical fibers (such as the branching of the Y-shaped optical fiber) and improve the accuracy of the detection results.

[0134] One of the aforementioned receiving reflectors (the second receiving reflector 92) has the functions of adjusting light intensity (achieved through a light intensity adjustable module) and reflecting light. This function can also be provided at the transmitting end; that is, a transmitting reflector (the first transmitting reflector 93 and the second transmitting reflector 94) is provided between the light source assembly 2 and the object under test, and one of the transmitting reflectors (the second transmitting reflector 94) has the functions of adjusting light intensity (achieved through a light intensity adjustable module) and reflecting light. As another embodiment, a transmitting reflector can be provided between the light source assembly 2 and the reference light channel 131. In summary, at least one of the transmitting reflector and the receiving reflector includes a light intensity adjustable module; it can be that only one of them includes a light intensity adjustable module, or it can be as follows: Figure 22 As shown, both include an adjustable light intensity module. The receiver reflector is not limited to the two shown in the figure; it can be one or more. Similarly, the transmitter emitter is not limited to the two shown in the figure; it can be one or more.

[0135] The second receiving end reflector 92 and the second transmitting end reflector 92 mentioned above each include a light intensity adjustable module, that is, they integrate a light intensity adjustable module. Therefore, the light intensity adjustable module is separated. Based on this idea, the above implementation can be changed to: the light source component 2 passes through the reference light channel 131 to the light receiving component 6 via the light path (reference light path), and the light source component 2 passes through the object under test to the light receiving component 6 via the light path (detection light path), at least one of which includes a light intensity adjustable component.

[0136] As described above, by setting an adjustable light intensity component, or by including an adjustable light intensity module in the transmitting end reflector and the receiving end reflector, the energy reaching the analyzer 7 can be ensured by adjusting the light intensity, which is beneficial to ensuring high accuracy of the detection results.

[0137] See Figure 19 The detector includes a third cavity 13. In this application, the detector includes a third housing 501. After the third housing 501 is assembled with the first housing 301, it forms a second cavity 13 to accommodate the light receiving component. The controller and analyzer 7 may also be located in the second cavity 13. The cavity walls of the first cavity and the second cavity are provided with windows, through which the light emitted by the light source component passes.

[0138] The detector includes a motor 401, a mounting bracket 409, and a wiper assembly 41. The motor 401 is mounted to the outside of the second housing 101 via the mounting bracket 409. The mounting bracket 409 is not limited in function; for example, it can be a clamp, a connecting bracket, etc., as long as it can mount the motor 401 to the second housing 101 or the third housing 501. When the mounting bracket 409 is a clamp, the shape of the first housing 301 or the third housing 501 can be cylindrical or not. In other embodiments, the motor 401 can also be mounted to the outside of the third housing 501 via the mounting bracket 409. Regardless of whether the motor 401 drives the wiper assembly 41 to clean the window, the method of cleaning the window can be found in the aforementioned embodiments, as only the motor mounting method differs. In this case, the cable of the controlled object may or may not include the cable of the motor 401. In other words, the cable of motor 401 can pass through the wiring channel or pass through the wiring channel.

[0139] As described above, by mounting the motor 401 on the third housing 501 or the second housing 101, the structure of the detector is more flexible, and the motor 401 can be purchased externally, which facilitates the design of the detector.

[0140] It should be noted that the technical solutions or features described in the above embodiments can be combined or supplemented with each other without conflict. The scope of protection of this application is not limited to the precise structures described in the above embodiments and shown in the accompanying drawings; all modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A detector, characterized in that, The detector includes a detector housing, a viewing window, an elastic element, a vibrating element, and a controller; The viewing window allows light to pass through and is assembled to the detector housing via the elastic element; The vibrating element is located in the central area of ​​the viewing window and is separate from the detector housing and the elastic element; The controller is connected to the vibrating element and controls the vibration of the vibrating element, which in turn causes the window to vibrate.

2. The detector according to claim 1, characterized in that, The detector includes at least one of the following features: a) The elastic element wraps around the edge of the window to form a wrapping boundary; the area of ​​the central region is smaller than the area enclosed by the wrapping boundary; b) The elastic element includes a window mounting groove, one of the inner wall of the window mounting groove and the edge of the window is provided with an inner protruding rib, the edge of the window is located in the window mounting groove, and the inner protruding rib abuts against the other of the inner wall and the edge of the window. c) The detector housing includes an elastic element mounting groove, and one of the outer surface of the elastic element and the groove wall of the elastic element mounting groove is provided with an outward protruding rib. The elastic element is located in the elastic element mounting groove, and the outward protruding rib abuts against the other of the groove wall and the outer surface. d) The vibrating element includes a piezoelectric sheet, which is cylindrical and whose axis is perpendicular to the viewing window.

3. The detector according to claim 1, characterized in that, The detector housing includes a first housing and a second housing; the first housing and the second housing are rotatably connected, and the interiors of the first housing and the interiors of the second housing are connected by a wiring channel; The detector also includes a controlled object and a separator, which are located within the second housing. The controlled object includes a light source assembly that emits light for detection and / or sterilization. The cable of the controlled object is located on the separator so that the cable deviates from the light path formed by the light. At least a portion of the cable of the controlled object passes through the wiring channel and is connected to the controller.

4. The detector according to claim 3, characterized in that, The detector housing includes a first cavity for accommodating the light source assembly; the viewing window is assembled on the cavity wall of the first cavity; the separator includes a separator cavity that extends through the separator, and light from the light source assembly passes through the separator cavity and exits from the viewing window; the separator includes at least one of the following features: a) Both ends of the separator are sealed to the cavity walls of the light source assembly and the first cavity, respectively; b) The separator includes a separator body having the separator cavity and side portions located at opposite ends of the separator body, the two side portions and the separator body forming an I-shape, the separator body and the two side portions forming a groove for accommodating the cable; or, the separator includes a separator body having the separator cavity and side portions located on the separator body, the side portions and the separator body forming a T-shape; the separator body, the side portions and the light source assembly form a groove for accommodating the cable. c) The inner wall of the cavity of the separator includes a black borax layer, or the separator is black foam, or the separator is black silicone.

5. The detector according to claim 3, characterized in that, The light source assembly includes a light-emitting lamp, a light-emitting lamp fixing component, a collimating lens, and a collimating lens mount; The light-emitting lamp and the collimating lens mount are assembled to the light-emitting lamp fixing component; the light-emitting lamp fixing component is assembled to the detector housing; The vibrating element includes a through hole; the collimating lens is assembled on the collimating lens mount to collimate the light emitted by the light-emitting lamp, and the collimated light is directed from the through hole to the viewing window; The detector includes at least one of the following features: a) The detector includes a cable limiting mechanism; with the light propagation direction of the light source assembly as the front, the cable limiting mechanism is located behind the separator, and the cable is limited by the cable limiting mechanism; the cable limiting mechanism is disposed in at least one of the light-emitting lamp fixing member, the collimating lens seat, or the light-emitting lamp; b) The collimating lens mount is threadedly connected to the lamp fixing component; c) The light-emitting lamp fixing component and the light-emitting lamp are limited by two light-emitting lamp limiting mechanisms and fixed as one unit by two fixing mechanisms; the line connecting the two fixing mechanisms and the line connecting the two light-emitting lamp limiting mechanisms are diagonals, and the intersection of the diagonals and the lamp bead of the light-emitting lamp are located on the optical axis of the collimating lens. d) The separator is disposed circumferentially on the collimating lens mount and extends out of the collimating lens mount along the direction of light propagation; e) The collimating lens mount includes a lens mounting cavity, and the collimating lens is fixed in the lens mounting cavity by dispensing adhesive; the cavity wall of the lens mounting cavity includes a through hole, and the through hole connects the interior of the lens mounting cavity and the exterior of the collimating lens mount.

6. The detector according to claim 3, characterized in that, The detector housing includes a housing cover and a housing sealing ring; the housing sealing ring has an n-shaped cross-section, including a base, a first side, a second side, and a rib; the first side and the second side are located on opposite sides of the base, and the rib is disposed on the second side; The second housing includes a cavity for accommodating the controlled object. A groove is provided on the top surface of the cavity wall. The second side portion is engaged with the groove, and the first side portion is in contact with the inner surface of the cavity wall. When the housing cover is placed over the cavity opening, the rib is pressed against the housing cover and also opposite to the groove. Alternatively, the first housing includes a first connecting end, the second housing includes a connecting portion, and the wiring channel passes through the first connecting end and the connecting portion; one of the first connecting end and the connecting portion is provided with a plurality of threaded grooves along the length direction of the first connecting end; the detector includes a radial sealing ring and an end face sealing ring, the radial sealing ring and the end face sealing ring being located in different threaded grooves; after the first connecting end and the connecting portion are tightened, the radial sealing ring and the end face sealing ring are clamped between the first connecting end and the connecting portion.

7. The detector according to claim 1, characterized in that, The detector includes a light source assembly that emits the light and a light receiving assembly that receives the light; the detector housing includes a first cavity that accommodates the light source assembly and a second cavity that accommodates the light receiving assembly; the cavity walls of the first cavity and the second cavity are provided with window mounting holes, the two window mounting holes are facing each other, and the axis of each window mounting hole is parallel to the optical axis of the light source assembly; There are two windows, each window including a window body and a shoulder located circumferentially to the window body; each window body is assembled with a window mounting hole via a hole-shaft fit, and each shoulder abuts against the edge of a window mounting hole.

8. The detector according to claim 1, characterized in that, The detector includes a motor assembly, a wiper assembly, a photoelectric detection assembly, and a light source assembly that emits the light; the motor drives the wiper assembly to reciprocate to clean the viewing window; The photoelectric detection component detects the range of the wiper's oscillation. The detector housing includes an opaque receiving chamber and a first cavity, and the light source assembly is located in the first cavity; of the motor assembly and the photoelectric detection assembly, at least the photoelectric detection assembly is located in the receiving chamber.

9. The detector according to claim 8, characterized in that, The detector also includes at least one of the following features: a) The detector includes a protective mesh cover, which is connected to the detector housing and covers the motor assembly located outside the detector housing and the wiper assembly; b) The wall of the receiving compartment is provided with a connecting hole, through which the wiper assembly and the motor assembly are connected; the detector includes a sealing assembly, which is assembled to the wall of the receiving compartment to seal the connecting hole; c) The receiving chamber and the first cavity are arranged side by side in a first direction, which is perpendicular to the direction of light propagation; d) Both the photoelectric detection component and the motor component are located within the housing, and the motor component and the photoelectric detection component are connected to the controller.

10. The detector according to claim 1, characterized in that, The detector includes a light source assembly that emits the light, a first light receiving assembly, a second light receiving assembly, a light path switching device, and an analyzer; A reference light channel is provided inside the housing of the detector, and the reference light channel is isolated from the outside of the detector. The light emitted by the light source component passes through the reference light channel; and the light emitted by the light source component passes through the object under test; Light from the object under test is transmitted to the first optical receiving component through the optical path switching device, and light from the reference optical channel is transmitted to the second optical receiving component through the optical path switching device. The first optical receiving component and the second optical receiving component are respectively connected to the analyzer. At least one of the first optical receiving component and the second optical receiving component includes a focusing lens, a focusing lens mount, and an optical fiber adapter. The focusing lens is assembled on the focusing lens mount; One of the focusing lens mount and the fiber optic adapter is provided with a mounting shaft, and the other is provided with a mounting hole. The mounting shaft and the mounting hole are engaged through a hole-shaft cooperation and fixed by a fixing structure. And / or, there are two optical path switching devices, one of which is located between the object under test and the first optical receiving component, and the other is located between the second optical receiving component and the reference optical channel; both optical path switching devices are connected to the controller, and under the control of the controller, one of the two optical path switching devices is turned on or off.

11. The detector according to claim 1, characterized in that, The detector includes a light source assembly that emits the light, a receiving reflector, an optical path switching device, a light receiving assembly, and an analyzer, wherein... A reference light channel is provided inside the housing of the detector, and the reference light channel is isolated from the outside of the detector. The light emitted by the light source component passes through the reference light channel; and the light emitted by the light source component passes through the object under test; One of the light rays from the reference optical channel and the light rays from the object under test is transmitted to the receiving end reflector through the optical path switching device, and then to the optical receiving component. The other of the light rays from the reference optical channel and the light rays from the object under test is transmitted to the optical receiving component through the optical path switching device. The optical receiving component is connected to the analyzer; At least one of the light source component and the reference light channel, and at least one of the light source component and the object under test, is provided with a transmitting end reflector, and at least one of the transmitting end reflector and the receiving end reflector includes a light intensity adjustable module. Alternatively, at least one of the following optical paths—the light source assembly via the reference light channel to the light receiving assembly and the light source assembly via the object under test to the light receiving assembly—includes an adjustable light intensity component.

Images