High-precision spectral radiation calibration device
By employing components such as a conical reflector, a protective reflector tube, and a photoresistor in the spectral radiometer calibration device, the problem of light leakage caused by the light source not being fully guided to the spectral radiometer was solved, and high-precision calibration was achieved.
Patent Information
- Application Number
- CN202520238426.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-14
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2035-02-14
AI Technical Summary
During the spectral radiometric calibration process, if the light source is not fully guided onto the spectral radiometer, light leakage will occur, affecting the calibration accuracy.
A high-precision spectral radiometric calibration device was designed, including components such as a conical reflector, a protective reflector tube, an optical fiber, a photoresistor, and an alarm. It ensures that the light source stably illuminates the end of the optical fiber to prevent light leakage, and uses the photoresistor to sense changes in light intensity and promptly issue an alarm.
Stable calibration of the light source was achieved, ensuring that the beam fully illuminates the spectroradiometer, improving calibration accuracy, and timely detection and handling of light leakage to prevent a decrease in accuracy.
Smart Images
Figure CN223710831U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of spectral radiation calibration, especially relates to a high-precision spectral radiation calibration device. BACKGROUND
[0002] The spectral radiometer is a kind of instrument for measuring the spectral characteristics of light radiation, and the spectral radiation calibration is the process of converting the signal obtained by the spectral measurement system, such as digital quantization value, into absolute spectral radiation quantity with physical meaning.Currently, the spectral instrument, including the spectrometer and the imaging spectrometer, is applied more and more deeply in various aspects of social life.
[0003] In the prior art, during the use of the spectral radiation calibration device, the light source emitted by the device to be calibrated needs to be irradiated on the spectral radiation brightness meter inside the device, and the calibration is processed through the value on the spectral radiation brightness meter.In the process of irradiation of the light source, the light source rotating ring needs to be converted into spectral radiation for subsequent detection.If the light source is not completely guided to the spectral radiation brightness meter during the rotating ring guiding process, leakage occurs, which will affect the subsequent calibration accuracy.Therefore, the utility model designs a high-precision spectral radiation calibration device. UTILITY MODEL CONTENT
[0004] The utility model aims at solving the problem that in the prior art, during the irradiation of the light source, the light source rotating ring needs to be converted into spectral radiation for subsequent detection, and if the light source is not completely guided to the spectral radiation brightness meter during the rotating ring guiding process, leakage occurs, which will affect the subsequent calibration accuracy, and proposes a high-precision spectral radiation calibration device.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:
[0006] A high-precision spectral radiation calibration device, comprising a shell and a base, the base is fixedly connected to the bottom of the shell, the left side inner wall of the shell is fixedly connected with a conical reflector, the sidewall of the conical reflector is fixedly connected with a pipe body and a protective reflector, the protective reflector is arranged on the inner wall of the pipe body, a plurality of optical fibers are arranged around the inner wall of the protective reflector, the plurality of optical fibers are in close contact, a gap is arranged between the pipe body and the protective reflector, a light source is inserted and connected to the inner wall of the conical reflector, a spectral radiation brightness meter is fixedly connected to the sidewall of the shell, a plurality of photoresistors are arranged around the inner wall of the protective reflector, a box body is fixedly connected to the pipe wall of the pipe body, a controller is arranged on the inner wall of the box body, the plurality of photoresistors are electrically connected to the controller respectively, an alarm is arranged on the upper surface of the box body, an electric wire is electrically connected to the bottom of the alarm, and the electric wire is electrically connected to the controller.
[0007] Preferably, the inner wall of the pipe body is fixedly connected with a reflection light pipe, and a plurality of photoresistors are arranged on the inner wall of the reflection light pipe.
[0008] Preferably, the end of the shell relative to the conical reflector is fixedly connected with a connecting cover, the inner wall of the connecting cover is fixedly connected with a threaded ring, the inner wall of the connecting cover is provided with a notch, the inner wall of the threaded ring is threadedly connected with a threaded rotating rod, the bottom end of the threaded rotating rod is rotatably connected with a clamping plate, and the clamping plate is arranged on the side wall of the light source.
[0009] Preferably, the inner wall of the shell is fixedly connected with a fixing frame, the inner wall of the fixing frame is slidably provided with a connecting ring, and the two sides of the connecting ring are arranged in close contact with the side wall of the light spectrum radiation luminance meter and the protective light reflector.
[0010] Preferably, the inner wall of the connecting ring is fixedly connected with a protective gasket, and the ends of a plurality of optical fibers extend to the inner wall of the protective gasket.
[0011] Preferably, the side wall of the light spectrum radiation luminance meter is fixedly connected with a positioning block, the side wall of the connecting ring is provided with a positioning groove, and the positioning block is arranged in the inner wall of the positioning groove in a plug-in mode.
[0012] Preferably, the inner wall of the fixing frame is rotatably provided with a ball, and the ball is rotatably arranged on the side wall of the connecting ring.
[0013] Preferably, the side wall of the light spectrum radiation luminance meter is fixedly provided with a connecting frame, the inner wall of the shell is provided with an opening, the connecting frame is arranged in the inner wall of the opening in a plug-in mode, and the inner wall of the connecting frame is provided with a rectangular groove.
[0014] Preferably, the inner wall of the connecting frame located in the rectangular groove is fixedly connected with a fixing rod, the rod wall of the fixing rod is movably provided with a clamping plate and a torsional spring, one end of the torsional spring is fixedly connected to the inner wall of the clamping plate, the other end of the torsional spring is fixedly connected to the inner wall of the connecting frame, the inner wall of the shell located in the opening is provided with a clamping groove, and the clamping plate is clamped to the inner wall of the clamping groove.
[0015] Preferably, the side wall of the clamping plate is fixedly connected with a pull rope, and one end of the pull rope, away from the clamping plate, extends to the outer side of the connecting frame and is fixedly connected with a pull ring.
[0016] Compared with the prior art, the high-precision spectral radiation calibration device has the following beneficial effects:
[0017] 1. The high-precision spectral radiation calibration device, by the light-emitting surface of the light source is attached to the inner wall of the conical reflector, and then the threaded rod is rotated along the inner wall of the threaded ring to push the clamping plate to clamp the side wall of the light source, so that the light source can be kept stable, facilitating subsequent calibration processing, and the light source can irradiate the light beam on the end of the plurality of optical fibers, and the optical fibers can completely refract the light beam to the spectral radiation luminance meter, so that the calibration processing can be performed.
[0018] 2. The high-precision spectral radiation calibration device, the conical reflector can be tightly connected to light sources of different sizes and volumes, ensuring that the light source can completely irradiate the end of the optical fiber, and the protective reflector can prevent the optical fiber from having a crack, so that the light source can completely irradiate the spectral radiation luminance meter, ensuring the calibration accuracy.
[0019] 3. The high-precision spectral radiation calibration device, the light source scattered to the outside of the protective reflector can irradiate the inner wall of the reflective light pipe, and the light can be dissipated to the photoresistor, so that the photoresistor can change in time, the controller can sense the value change of the photoresistor, and the alarm can be driven in time through the wire to issue an alarm, so that the light leakage can be found and handled to prevent the light leakage from affecting the calibration accuracy.
[0020] 4. The high-precision spectral radiation calibration device, the connecting ring can keep the pipe body and the spectral radiation luminance meter tightly connected, and the optical fiber can be easily removed and aligned for maintenance processing, the fixing frame can keep the connecting ring stable, the protective gasket can ensure the protection effect of the optical fiber, the positioning block can improve the tightness of the connection between the spectral radiation luminance meter and the connecting ring, and the ball can reduce the friction of the connecting ring on the inner wall of the fixing frame.
[0021] 5. The high-precision spectral radiation calibration device, the connecting frame is inserted into the inner wall of the opening, the torsional spring can push the clamping plate to extend into the clamping groove, the stability of the connecting frame in the inner wall of the opening can be improved, the spectral radiation luminance meter can be stably connected to the inner wall of the shell, the clamping plate can be retracted into the rectangular groove by pulling the pull ring, the spectral radiation luminance meter and the connecting frame can be easily removed, and the internal optical fiber can be easily maintained and replaced. BRIEF DESCRIPTION OF DRAWINGS
[0022] Figure 1 A structure perspective view of a high-precision spectral radiation calibration device is provided.
[0023] Figure 2 A structure sectional view of a high-precision spectral radiation calibration device is provided.
[0024] Figure 3 A structure perspective view of a high-precision spectral radiation calibration device is provided. Figure 2 An enlarged schematic view of a structure of a partial A portion.
[0025] Figure 4 For Figure 2 The structure of the middle local B part is enlarged.
[0026] In the figure: 1 housing, 2 base, 3 conical reflector, 4 tube body, 5 optical fiber, 6 protective reflector, 7 light source, 8 spectral radiance meter, 9 photoresistor, 10 reflective light pipe, 11 box body, 12 controller, 13 alarm, 14 wire, 15 connecting cover, 16 threaded ring, 17 threaded rotating rod, 18 clamping plate, 19 fixing frame, 20 connecting ring, 21 protective gasket, 22 positioning block, 23 ball, 24 connecting frame, 25 fixing rod, 26 clamping plate, 27 torsional spring, 28 pull rope, 29 pull ring. DETAILED DESCRIPTION
[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.
[0028] Embodiment one
[0029] With reference to Figures 1-4 A high-precision spectral radiation calibration device, comprising a housing 1 and a base 2, the base 2 is fixedly connected to the bottom of the housing 1, a conical reflector 3 is fixedly connected to the left side inner wall of the housing 1, a tube body 4 and a protective reflector 6 are fixedly connected to the side wall of the conical reflector 3, the protective reflector 6 is arranged on the inner wall of the tube body 4, a plurality of optical fibers 5 are arranged around the inner wall of the protective reflector 6, the plurality of optical fibers 5 are in close contact, a gap is arranged between the tube body 4 and the protective reflector 6, a light source 7 is insertedly arranged on the inner wall of the conical reflector 3, a spectral radiance meter 8 is fixedly connected to the side wall of the housing 1, a plurality of photoresistors 9 are arranged around the inner wall of the protective reflector 6, a box body 11 is fixedly connected to the tube wall of the tube body 4, a controller 12 is arranged on the inner wall of the box body 11, the plurality of photoresistors 9 are electrically connected to the controller 12, an alarm 13 is arranged on the upper surface of the box body 11, a wire 14 is electrically connected to the bottom of the alarm 13, and the wire 14 is electrically connected to the controller 12.
[0030] A reflective light pipe 10 is fixedly connected to the inner wall of the tube body 4, the plurality of photoresistors 9 are arranged on the inner wall of the reflective light pipe 10, a connecting cover 15 is fixedly connected to the end of the housing 1 relative to the conical reflector 3, a threaded ring 16 is fixedly connected to the inner wall of the connecting cover 15, a notch is arranged on the inner wall of the connecting cover 15 located at the threaded ring 16, a threaded rotating rod 17 is threadedly connected to the inner wall of the threaded ring 16, a clamping plate 18 is rotationally connected to the bottom end rod wall of the threaded rotating rod 17, and the clamping plate 18 is tightly arranged on the side wall of the light source 7.
[0031] In use, by attaching the light-emitting surface of the light source 7 to the inner wall of the conical reflector 3, and then rotating the threaded rod 17 along the inner wall of the threaded ring 16 to push the clamping plate 18 to clamp the side wall of the light source 7, the light source 7 can be kept stable, facilitating subsequent calibration processing. The light source 7 irradiates the light beam on the end of the plurality of optical fibers 5, and the optical fiber 6 can completely refract the light beam onto the spectral radiance luminometer 8 for calibration processing. The conical reflector 3 can be tightly connected to light sources of different sizes and volumes, ensuring that the light source can completely irradiate the end of the optical fiber 5. The protective light reflection cylinder 6 can prevent the optical fiber 5 from having a crack, and the light source can completely irradiate the spectral radiance luminometer 8, ensuring the calibration accuracy.
[0032] If the light source is scattered to the outside of the protective light reflection cylinder 6 and irradiates the inner wall of the reflective light scattering pipe 10, the light is dissipated to the photoresistor 9, which can cause the photoresistor 9 to change in time, so that the controller 12 can sense the change in the value of the photoresistor 9, and the alarm 13 can be driven by the wire 14 to issue a warning in time. It can be found and handled to prevent light leakage from affecting the calibration accuracy.
[0033] Embodiment two
[0034] Referring to Figures 1-4 The inner wall of the casing 1 is fixedly connected with a fixed frame 19, the inner wall of the fixed frame 19 is slidably provided with a connecting ring 20, the two sides of the connecting ring 20 are respectively provided in abutment with the side wall of the protective light reflection cylinder 6 and the spectral radiance luminometer 8, the inner wall of the connecting ring 20 is fixedly connected with a protective gasket 21, the ends of the plurality of optical fibers 5 extend to the inner wall of the protective gasket 21, the side wall of the spectral radiance luminometer 8 is fixedly connected with a positioning block 22, the side wall of the connecting ring 20 is provided with a positioning groove, and the positioning block 22 is inserted and arranged in the inner wall of the positioning groove. The inner wall of the fixed frame 19 is rollingly provided with a ball 23, and the ball 23 is rollingly arranged on the side wall of the connecting ring 20.
[0035] The connecting ring 20 can keep the pipe body 4 and the spectral radiance luminometer 8 in close connection, and facilitate subsequent disassembly and alignment of the optical fiber 5 for maintenance processing. The fixed frame 19 can ensure that the connecting ring 20 remains stable, the protective gasket 21 can ensure the protection effect of the optical fiber 5, the positioning block 22 can improve the tightness of the connection between the spectral radiance luminometer 8 and the connecting ring 20, and the ball 23 can reduce the friction of the connecting ring 20 on the inner wall of the fixed frame 19.
[0036] Embodiment three
[0037] Referring to Figures 1-4The side wall of the spectral radiance meter 8 is fixedly sleeved with a connecting frame 24, the inner wall of the casing 1 is provided with an opening, the connecting frame 24 is insertedly arranged on the inner wall of the opening, the inner wall of the connecting frame 24 is provided with a rectangular groove, the inner wall of the rectangular groove is fixedly connected with a fixed rod 25, the rod wall of the fixed rod 25 is movably sleeved with a clamping plate 26 and a torsion spring 27, one end of the torsion spring 27 is fixedly connected with the inner wall of the clamping plate 26, the other end of the torsion spring 27 is fixedly connected with the inner wall of the connecting frame 24, the inner wall of the casing 1 at the opening is provided with a clamping groove, the clamping plate 26 is clampingly arranged on the inner wall of the clamping groove, the side wall of the clamping plate 26 is fixedly connected with a pull rope 28, and one end of the pull rope 28, away from the clamping plate 26, extends to the outer side of the connecting frame 24 and is fixedly connected with a pull ring 29.
[0038] The connecting frame 24 is insertedly arranged on the inner wall of the opening, the torsion spring 27 can push the clamping plate 26 to extend to the inside of the clamping groove, the stability of the connecting frame 24 in the inner wall of the opening can be improved, so that the spectral radiance meter 8 is stably connected with the inner wall of the casing 1, the pull ring 29 can be pulled to move the pull rope 28, the clamping plate 26 is retracted to the inside of the rectangular groove, the spectral radiance meter 8 and the connecting frame 24 are convenient to disassemble, and the optical fiber 5 in the inside is convenient to maintain and replace.
[0039] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.
Claims
1. A high-precision spectral radiometric calibration device, comprising a housing (1) and a base (2), characterized in that: The base (2) is fixedly connected to the bottom of the housing (1). A conical reflector (3) is fixedly connected to the inner left side of the housing (1). A tube (4) and a protective reflector (6) are fixedly connected to the side wall of the conical reflector (3). The protective reflector (6) is set on the inner wall of the tube (4). Multiple optical fibers (5) are arranged around the inner wall of the protective reflector (6). The multiple optical fibers (5) are in close contact. There is a gap between the tube (4) and the protective reflector (6). A light source (7) is inserted into the inner wall of the conical reflector (3). A spectroradiometer (8) is fixedly connected to the side wall of the housing (1). Multiple photoresistors (9) are arranged around the inner wall of the protective reflector (6). A box (11) is fixedly connected to the tube wall of the tube body (4). A controller (12) is provided on the inner wall of the box (11). The multiple photoresistors (9) are electrically connected to the controller (12). An alarm (13) is provided on the upper surface of the box (11). A wire (14) is electrically connected to the bottom of the alarm (13). The wire (14) is electrically connected to the controller (12).
2. The high-precision spectral radiometric calibration device according to claim 1, characterized in that: The inner wall of the tube (4) is fixedly connected to a reflective diffuser tube (10), and multiple photoresistors (9) are respectively disposed on the inner wall of the reflective diffuser tube (10).
3. The high-precision spectral radiometric calibration device according to claim 1, characterized in that: The housing (1) is fixedly connected to a connecting cover (15) at the end relative to the conical reflector (3). A threaded ring (16) is fixedly connected to the inner wall of the connecting cover (15). The connecting cover (15) has a notch on the inner wall of the threaded ring (16). A threaded rotating rod (17) is threadedly connected to the inner wall of the threaded ring (16). A clamping plate (18) is rotatably connected to the bottom wall of the threaded rotating rod (17). The clamping plate (18) is pressed against the side wall of the light source (7).
4. The high-precision spectral radiometric calibration device according to claim 1, characterized in that: The inner wall of the housing (1) is fixedly connected to a fixing frame (19), and the inner wall of the fixing frame (19) is slidably provided with a connecting ring (20). The two sides of the connecting ring (20) are respectively attached to the side walls of the protective reflector (6) and the spectral radiometer (8).
5. A high-precision spectral radiometric calibration device according to claim 4, characterized in that: The inner wall of the connecting ring (20) is fixedly connected with a protective washer (21), and the ends of the plurality of optical fibers (5) extend to the inner wall of the protective washer (21).
6. The high-precision spectral radiometric calibration device according to claim 4, characterized in that: A positioning block (22) is fixedly connected to the side wall of the spectral radiance meter (8), and a positioning groove is provided on the side wall of the connecting ring (20). The positioning block (22) is inserted into the inner wall of the positioning groove.
7. A high-precision spectral radiometric calibration device according to claim 4, characterized in that: The inner wall of the fixing frame (19) is provided with rolling balls (23), which are rolled on the side wall of the connecting ring (20).
8. The high-precision spectral radiometric calibration device according to claim 1, characterized in that: A connecting frame (24) is fixedly sleeved on the side wall of the spectral radiance meter (8). An opening is provided on the inner wall of the housing (1). The connecting frame (24) is inserted into the inner wall of the opening. A rectangular groove is provided on the inner wall of the connecting frame (24).
9. A high-precision spectral radiometric calibration device according to claim 8, characterized in that: The connecting frame (24) is fixedly connected to the inner wall of the rectangular groove by a fixing rod (25). A clamping plate (26) and a torsion spring (27) are movably sleeved on the rod wall of the fixing rod (25). One end of the torsion spring (27) is fixedly connected to the inner wall of the clamping plate (26), and the other end of the torsion spring (27) is fixedly connected to the inner wall of the connecting frame (24). The housing (1) has a slot on the inner wall of the opening, and the clamping plate (26) is clamped in the inner wall of the slot.
10. A high-precision spectral radiometric calibration device according to claim 9, characterized in that: A pull rope (28) is fixedly connected to the side wall of the card plate (26). One end of the pull rope (28) away from the card plate (26) extends to the outside of the connecting frame (24) and is fixedly connected to a pull ring (29).