Reflector angle switching device and spectrometer

Abstract

The utility model relates to a reflector angle switching device and a spectrograph, the reflector angle switching device is arranged in a cavity of the spectrograph, the spectrograph is provided with a first light inlet and a second light inlet, the first light inlet is used for allowing first light to enter the cavity, and the second light inlet is used for allowing second light to enter the cavity. The device mainly comprises a reflecting assembly and a driving part, the reflecting assembly comprises a reflecting mirror seat and a reflecting mirror, the reflecting mirror seat is rotatably arranged in the cavity, and the reflecting mirror is arranged on the reflecting mirror seat. The driving piece is arranged in the cavity, connected with the reflector base and used for driving the reflector base to rotate between the first angle and the second angle. When spectrum detection is carried out on the first light, the reflector base rotates to a first angle, and the first light is transmitted along a preset path. And when spectrum detection is carried out on the second light, the reflector seat rotates to a second angle, the reflector is opposite to the second light, and the second light is transmitted along a preset path under the reflection of the reflector.

Description

Technical Field

[0001] The utility model relates to the technical field of optics, and in particular to a reflector angle switching device and a spectrometer. Background Art

[0002] A spectrometer is a physical optical instrument that uses phenomena such as light dispersion, absorption, and scattering to generate a spectrum related to the substance being analyzed, thereby analyzing and measuring the material's composition and structure. Existing spectrometers generally have only one light input port. To perform spectral detection of two wavelengths of light, the spectrometer must manually insert and remove different fiber optic plugs at the light input port, connecting light of different wavelengths to complete the spectral detection. However, this method requires manual replacement of fiber optic plugs, which is cumbersome and results in low detection efficiency. Utility Model Content

[0003] The purpose of the utility model is to provide a reflector angle switching device and a spectrometer, which solve the technical problem of how to simplify the spectrum detection operation and how to improve the spectrum detection efficiency when performing spectrum detection on light of two wavelengths.

[0004] In order to solve the above technical problems, the present utility model adopts the following technical solutions.

[0005] The utility model provides a reflector angle switching device, which is arranged in a chamber of a spectrometer, wherein the spectrometer is provided with a first light inlet and a second light inlet, the first light inlet being used for allowing a first light to enter the chamber, and the second light inlet being used for allowing a second light to enter the chamber, and the device comprises: a reflection assembly, comprising a reflector seat and a reflector, the reflector seat being rotatably arranged in the chamber, and the reflector being arranged on the reflector seat; a driving member being arranged in the chamber and connected to the reflector seat, and being used for driving the reflector seat to rotate between a first angle and a second angle; when performing spectral detection on the first light, the reflector seat is rotated to the first angle, and the first light propagates along a preset path; when performing spectral detection on the second light, the reflector seat is rotated to the second angle, the reflector is opposite to the second light, and the second light propagates along the preset path under reflection of the reflector.

[0006] In some embodiments of the present application, the reflector angle switching device also includes a positioning assembly, the positioning assembly includes a first positioning member and a second positioning member, and the first positioning member and the second positioning member are spaced apart in the rotation direction of the reflector seat; when the reflector seat is rotated to the first angle, it forms a limiting fit with the first positioning member to prevent the reflector seat from continuing to rotate; when the reflector seat is rotated to the second angle, it forms a limiting fit with the second positioning member to prevent the reflector seat from rotating.

[0007] In some embodiments of the present application, the reflector angle switching device also includes a control system, the first positioning member is a position sensor, the first positioning member is used to detect the position of the reflector seat and output a detection signal to the control system, when the positioning member detects that the reflector seat is rotated to the first angle, the control system receives the detection signal from the positioning member and controls the driving member to stop working to prevent the reflector seat from continuing to rotate.

[0008] In some embodiments of the present application, the reflector angle switching device also includes a base, which is connected to the base, the driving member is installed on the base, and the driving member is provided with a rotating shaft, the rotating shaft passes through the base and is transmission-connected to the reflector seat, the second positioning member is provided on the base, and when the second positioning member is against the reflector seat, the reflector seat and the second positioning member form a limiting fit.

[0009] In some embodiments of the present application, the second positioning member is movably disposed on the base and can move toward the reflector seat.

[0010] In some embodiments of the present application, the second positioning member includes a fixed seat and a movable member, the fixed seat is arranged on the base, and the fixed seat is provided with an internal thread, the movable member is provided with an external thread and is screwed to the fixed seat, and the movable member is used to counteract the reflector seat.

[0011] The utility model provides a spectrometer, comprising a base and the reflector angle switching device described in any one of the above embodiments, wherein the base is provided with the chamber, the first light entrance and the second light entrance.

[0012] In some embodiments of the present application, the first light inlet and the second light inlet are arranged on two adjacent side walls of the chamber, the rotation axis of the reflector seat is located between the center line of the first light inlet and the center line of the second light inlet, and the reflector is arranged circumferentially of the rotation axis of the reflector seat.

[0013] In some embodiments of the present application, the side wall where the first light entrance is located is perpendicular to the side wall where the second light entrance is located. When the reflector seat is rotated to the second angle, the normal of the reflector is arranged at a 45-degree angle to the center line of the second light entrance.

[0014] It can be seen from the above technical solutions that the embodiments of the present utility model have at least the following advantages and positive effects:

[0015] In the reflector angle switching device and spectrometer of the embodiment of the present invention, the first light inlet and the second light inlet are respectively connected to the first light and the second light of different wavelengths, and the driving member drives the reflector seat to rotate to the first angle. At this time, the reflector seat and the reflector thereon avoid the first light and do not cause obstruction. The first light propagates along the preset path and is directly detected by the optical system inside the spectrometer. When the driving member drives the reflector seat to rotate to the second angle, the second light will hit the reflector, and the reflector will reflect the second light. The reflected second light can continue to propagate along the same preset path as the first light and be detected by the optical system inside the spectrometer. By controlling the driving member, the reflector seat can be accurately controlled to rotate to the first angle and the second angle, so that the first light and the second light of different wavelengths can be spectrally detected without manually plugging and unplugging the optical fiber plug, which simplifies the operation process, reduces the time of manual operation, and improves the efficiency of spectral detection. Furthermore, the spectrometer can avoid errors caused by wear between the optical fiber plug and the spectrometer due to the action of manually plugging and unplugging the optical fiber plug, thereby improving the accuracy of spectral detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The various objects, features, and advantages of the present invention will become more apparent upon consideration of the following detailed description of preferred embodiments of the present invention in conjunction with the accompanying drawings. The accompanying drawings are merely illustrative illustrations of the present invention and are not necessarily drawn to scale. In the accompanying drawings, like reference numerals denote identical or similar components.

[0017] Figure 1 FIG. 1 is a schematic structural diagram of a spectrometer according to an exemplary embodiment.

[0018] Figure 2 yes Figure 1 Schematic diagram of the structure when the middle reflector seat is rotated to the second angle.

[0019] Figure 3 yes Figure 2 A structural diagram from another perspective.

[0020] Figure 4 yes Figure 1 Schematic diagram of the structure when the middle reflector seat is rotated to the first angle.

[0021] Figure 5 The first ray is Figure 1 Schematic diagram of the light path when the middle reflector mount is rotated to the first angle.

[0022] Figure 6 The second ray is Figure 1 Schematic diagram of the light path in .

[0023] The following are the descriptions of the reference numerals:

[0024] 1. Base; 11. First light inlet; 12. Second light inlet; 13. Chamber;

[0025] 2. Reflection assembly; 21. Reflector seat; 211. Positioning strip; 22. Reflector;

[0026] 3. Driving parts;

[0027] 4. Positioning assembly; 41. First positioning member; 42. Second positioning member; 421. Fixed seat; 422. Movable member;

[0028] 5. Base. DETAILED DESCRIPTION

[0029] Although the present invention can be easily embodied as embodiments of different forms, only some of the specific embodiments are shown in the drawings and will be described in detail in this specification. It should be understood that this description should be regarded as an exemplary illustration of the principles of the present invention and is not intended to limit the present invention to that described herein.

[0030] Thus, a feature indicated in this specification is intended to illustrate one of the features of one embodiment of the present invention, rather than implying that every embodiment of the present invention must have the described feature. Furthermore, it should be noted that this specification describes many features. Although certain features can be combined together to illustrate possible system designs, these features can also be used in other, not explicitly described, combinations. Thus, unless otherwise noted, the described combinations are not intended to be limiting.

[0031] In the embodiments shown in the accompanying drawings, directional indications (such as up, down, left, right, front, and back) used to explain the structure and movement of various components of the present invention are not absolute but relative. These descriptions are applicable when these components are in the positions shown in the accompanying drawings. If the descriptions of the positions of these components are changed, these directional indications will also change accordingly.

[0032] See also Figures 1 to 6The reflector angle switching device provided in one embodiment of the present invention is arranged in the chamber 13 of the spectrometer. The spectrometer is provided with a first light inlet 11 and a second light inlet 12. The first light inlet 11 is used to allow the first light to enter the chamber 13, and the second light inlet 12 is used to allow the second light to enter the chamber 13. It mainly includes a reflective component 2 and a driving member 3. The reflective component 2 includes a reflector seat 21 and a reflector 22. The reflector seat 21 is rotatably arranged in the chamber 13, and the reflector 22 is arranged on the reflector seat 21. The driving member 3 is arranged in the chamber 13 and is connected to the reflector seat 21, and is used to drive the reflector seat 21 to rotate between the first angle and the second angle. When performing spectral detection on the first light, the reflector seat 21 rotates to the first angle, and the first light propagates along a preset path. When performing spectral detection on the second light, the reflector seat 21 rotates to the second angle, the reflector 22 is opposite to the second light, and the second light propagates along the preset path under the reflection of the reflector 22.

[0033] In the reflector angle switching device of the embodiment of the present invention, the first light inlet 11 and the second light inlet 12 are respectively connected to the first light and the second light of different wavelengths. The driving member 3 drives the reflector seat 21 to rotate to the first angle. At this time, the reflector seat 21 and the reflector 22 thereon avoid the first light and do not cause obstruction. The first light propagates along the preset path and is directly detected by the optical system inside the spectrometer. When the driving member 3 drives the reflector seat 21 to rotate to the second angle, the second light will hit the reflector 22, and the reflector 22 will reflect the second light. The reflected second light can continue to propagate along the same path as the first light and be detected by the optical system inside the spectrometer. By controlling the driving member 3, the reflector seat 21 can be accurately controlled to rotate to the first angle and the second angle, so that the first light and the second light of different wavelengths can be spectrally detected without manually plugging and unplugging the optical fiber plug, simplifying the operation process, reducing the time of manual operation, and improving the efficiency of spectral detection. Furthermore, the spectrometer can avoid the error caused by wear between the optical fiber plug and the spectrometer caused by the action of manually plugging and unplugging the optical fiber plug, thereby improving the accuracy of spectral detection.

[0034] See also Figures 1 to 4The reflector angle switching device further includes a positioning assembly 4, which includes a first positioning member 41 and a second positioning member 42, and the first positioning member 41 and the second positioning member 42 are spaced apart in the rotation direction of the reflector seat 21. When the reflector seat 21 is rotated to the first angle, it forms a limit fit with the first positioning member 41 to prevent the reflector seat 21 from continuing to rotate. When the reflector seat 21 is rotated to the second angle, it forms a limit fit with the second positioning member 42 to prevent the reflector seat 21 from rotating. By setting the positioning assembly 4, the rotation angle of the reflector seat 21 can be accurately fed back or controlled, thereby ensuring that the reflector seat 21 can be accurately rotated to the first angle and the second angle, thereby improving the stability and accuracy of spectral detection.

[0035] It should be noted that the above-mentioned limiting cooperation can be an inductive limiting or a contact limiting.

[0036] See also Figure 1 and Figure 4 In one embodiment, when the reflector seat 21 rotates to the first angle, the reflector seat 21 forms a limiting engagement with the first positioning member 41 to prevent further rotation of the reflector seat 21. The reflector angle switching device further includes a control system. The first positioning member 41 is a position sensor. The first positioning member 41 is used to detect the position of the reflector seat 21 and output a detection signal to the control system. When the positioning member detects that the reflector seat 21 has rotated to the first angle, the control system receives the detection signal from the positioning member and controls the driving member 3 to stop operating, thereby preventing further rotation of the reflector seat 21. The position sensor can quickly respond to changes in the position of the reflector seat 21, achieving rapid positioning, thereby enabling precise detection and control of the position of the reflector seat 21.

[0037] In this embodiment, the first positioning member 41 is a photoelectric switch, and the reflector seat 21 is provided with a positioning bar 211 that cooperates with the position sensor.

[0038] See also Figures 1 to 4In one embodiment, when the reflector seat 21 rotates to the second angle, a limiting fit is formed with the second positioning member 42 to prevent the reflector seat 21 from continuing to rotate. The reflector angle switching device also includes a base 5, which is connected to the base 1. The driving member 3 is mounted on the base 5, and the driving member 3 is provided with a rotating shaft, which passes through the base 5 and is transmission-connected to the reflector seat 21. The second positioning member 42 is provided on the base 5, and when the second positioning member 42 abuts against the reflector seat 21, the reflector seat 21 and the second positioning member 42 form a limiting fit. The base 5 provides stable support for the driving member 3 and the second movable member 422, and makes the overall structure of the spectrometer more compact and stable. The second positioning member 42 can prevent the reflector seat 21 from excessive rotation from a structural level, ensuring the positioning accuracy of the reflector seat 21 at the second angle and ensuring that the second light can be correctly reflected, thereby improving the accuracy of spectral detection.

[0039] In a further embodiment, the second positioning member 42 is movably provided on the base 5 and can move toward the reflector seat 21. Errors may occur during mechanical manufacturing and assembly, and the movement of the second positioning member 42 can correctly limit the position of the reflector seat 21, keeping it at an accurate angle, further improving the accuracy of spectral detection.

[0040] In a further embodiment, the second positioning member 42 includes a fixed seat 421 and a movable member 422. The fixed seat 421 is disposed on the base 5 and has an internal thread. The movable member 422 has an external thread and is screwed to the fixed seat 421. The movable member 422 is configured to abut against the reflector seat 21. Through the screw connection between the fixed seat 421 and the movable member 422, the position of the movable member 422 can be conveniently adjusted by screwing the movable member 422 in or out. The operation is relatively quick and simple, and the screw connection method is stable and reliable.

[0041] See also Figure 1 、 Figure 5 and Figure 6 The present invention provides a spectrometer, including a base 1 and a reflector angle switching device according to any one of the above embodiments. The base 1 is provided with a chamber 13, a first light inlet 11 and a second light inlet 12.

[0042] See also Figure 5 and Figure 6The first light inlet 11 and the second light inlet 12 are disposed on two adjacent side walls of the chamber 13. The rotation axis of the reflector mount 21 is located between the centerline of the first light inlet 11 and the centerline of the second light inlet 12. The reflector 22 is disposed circumferentially around the rotation axis of the reflector mount 21, thereby providing a feasible path for the propagation of the first and second light rays. In other embodiments, the reflector mount 21 faces the side wall where the second light inlet 12 is located, forming an inclined angle with the side wall where the second light inlet 12 is located, and the reflector 22 is perpendicular to the rotation axis of the reflector mount 21.

[0043] In a further embodiment, the side wall where the first light inlet 11 is located is perpendicular to the side wall where the second light inlet 12 is located. When the reflector seat 21 is rotated to the second angle, the normal of the reflector 22 is arranged at an angle of 0.5 degrees to the center line of the second light inlet 12. This adapts to the conventional shape of the spectrometer and provides an effective structural arrangement that is quick and simple to arrange.

[0044] While the present invention has been described with reference to several exemplary embodiments, it should be understood that the terms used are illustrative and exemplary rather than restrictive. Since the present invention can be embodied in a variety of forms without departing from the spirit or essence of the invention, it should be understood that the above-described embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope of the appended claims. Therefore, all changes and modifications that fall within the scope of the claims or their equivalents are intended to be covered by the appended claims.

Claims

1. A reflector angle switching device, disposed in a chamber of a spectrometer, wherein the spectrometer is provided with a first light inlet and a second light inlet, wherein the first light inlet is used for allowing a first light to enter the chamber, and the second light inlet is used for allowing a second light to enter the chamber, wherein: include: A reflective assembly, comprising a reflector seat and a reflector, wherein the reflector seat is rotatably disposed in the chamber, and the reflector is disposed on the reflector seat; a driving member, disposed in the chamber and connected to the reflector seat, for driving the reflector seat to rotate between a first angle and a second angle; When performing spectrum detection on the first light, the reflector seat rotates to a first angle, and the first light propagates along a preset path; When performing spectrum detection on the second light, the reflector seat rotates to a second angle, the reflector is opposite to the second light, and the second light propagates along the preset path under the reflection of the reflector.

2. The reflector angle switching device according to claim 1, wherein: The reflector angle switching device further comprises a positioning assembly, wherein the positioning assembly comprises a first positioning member and a second positioning member, and the first positioning member and the second positioning member are spaced apart in the rotation direction of the reflector seat; When the reflector seat is rotated to the first angle, it forms a limiting fit with the first positioning member to prevent the reflector seat from continuing to rotate; when the reflector seat is rotated to the second angle, it forms a limiting fit with the second positioning member to prevent the reflector seat from rotating.

3. The reflector angle switching device according to claim 2, wherein: The reflector angle switching device also includes a control system. The first positioning member is a position sensor, which is used to detect the position of the reflector seat and output a detection signal to the control system. When the positioning member detects that the reflector seat is rotated to the first angle, the control system receives the detection signal from the positioning member and controls the driving member to stop working to prevent the reflector seat from continuing to rotate.

4. The reflector angle switching device according to claim 2, wherein: The reflector angle switching device also includes a base, which is connected to the base, the driving member is installed on the base, and the driving member is provided with a rotating shaft, the rotating shaft passes through the base and is transmission-connected to the reflector seat, the second positioning member is provided on the base, and when the second positioning member is against the reflector seat, the reflector seat and the second positioning member form a limited fit.

5. The reflector angle switching device according to claim 4, wherein: The second positioning member is movably arranged on the base and can move toward the reflector seat.

6. The reflector angle switching device according to claim 5, characterized in that: The second positioning member includes a fixed seat and a movable member. The fixed seat is arranged on the base and has an internal thread. The movable member has an external thread and is screwed to the fixed seat. The movable member is used to abut against the reflector seat.

7. A spectrometer, characterized in that: The invention comprises a base and the reflector angle switching device according to any one of claims 1 to 6, wherein the base is provided with the chamber, the first light entrance and the second light entrance.

8. The spectrometer according to claim 7, characterized in that The first light inlet and the second light inlet are arranged on two adjacent side walls of the chamber, the rotation axis of the reflector seat is located between the center line of the first light inlet and the center line of the second light inlet, and the reflector is arranged circumferentially of the rotation axis of the reflector seat.

9. The spectrometer according to claim 8, characterized in that The side wall where the first light entrance is located is perpendicular to the side wall where the second light entrance is located. When the reflector seat is rotated to the second angle, the normal line of the reflector and the center line of the second light entrance are arranged at a 45-degree angle.

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