A detection device for detecting performance indicators of an infrared detector

Abstract

The utility model discloses a detection device for detecting infrared detector performance index, including fixed frame, carousel, detector board, first sensor module, second sensor module and control module, carousel rotatable setting is in the fixed frame, and the carousel is along the circumferential direction of carousel and is provided with the installation site of multiple infrared detector, and detector board sets up at the bottom of carousel, and is located the downside of installation site, and first sensor module is fixed on the fixed frame through first support, and second sensor module is fixed on the fixed frame through second support, and first sensor module and second sensor module are parallelly arranged, and are located the upside of carousel, and control module sets up on the fixed frame, and first sensor module and second sensor module are electric connection respectively in control module, and detector board electric connection in control module. The utility model aims at designing a kind of detection device of automatic detection infrared detector performance index.

Description

Technical Field

[0001] This utility model relates to the field of infrared sensor technology, and in particular to a detection device for detecting the performance indicators of infrared detectors. Background Technology

[0002] Infrared gas detection technology boasts advantages such as wide measurement range, high accuracy, good selectivity, no poisoning, long service life, low power consumption, and ease of operation and maintenance. It is gradually replacing traditional sensors such as electrochemical and catalytic combustion sensors, and is widely used in coal mines, petrochemical plants, natural gas pipelines, factories, and public places. With increasing emphasis on the quality of living and working environments, miniaturizing sensors and integrating them into wearable devices such as safety helmets for easy portability can better ensure the safety of personnel in workplaces.

[0003] In infrared sensor technology, the detector is an indispensable component of the sensor module, playing a crucial role in the entire product. The detector's performance directly impacts the sensor's overall performance. Therefore, to prevent performance issues caused by detector performance problems, a detection device for measuring infrared detector performance parameters is needed. This allows for the early elimination of factors leading to substandard sensor performance due to detector performance issues, ensures consistency in the performance of sensors assembled in batches, avoids unnecessary repetitive work, and improves production efficiency.

[0004] In existing infrared sensor assembly processes, the lack of specific detector performance testing devices often leads to the omission of detector testing. This omission results in the sensor failing performance tests after assembly, necessitating rework due to detector performance issues. This causes delays in overall product delivery, unnecessary repetitive work, and waste of materials. Utility Model Content

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is to provide a detection device for detecting the performance indicators of infrared detectors, including: a fixed frame, a turntable, a detector plate, a first sensor module, a second sensor module, and a control module; the turntable is rotatably mounted on the fixed frame, and the turntable has multiple mounting positions for infrared detectors along its circumference; the detector plate is located at the bottom of the turntable and below the mounting positions; the first sensor module is fixed on the fixed frame by a first bracket; the second sensor module is fixed on the fixed frame by a second bracket, and the first sensor module and the second sensor module are arranged side by side on the upper side of the turntable; the control module is located on the fixed frame, and the first sensor module and the second sensor module are electrically connected to the control module, and the detector plate is electrically connected to the control module.

[0006] Furthermore, the first sensor module includes: a sensor nitrogen module, a first infrared light source, and a first stylus contact plate; the sensor nitrogen module is fixed on a mounting frame by a first bracket, the first infrared light source is disposed on the first bracket, the first stylus contact plate is disposed on the mounting frame and located on the lower side of the sensor nitrogen module, and the first infrared light source and the first stylus contact plate are electrically connected to the control module respectively;

[0007] The second sensor module includes: a sensor gas module, a second infrared light source, and a second stylus contact plate; the sensor gas module is fixed on a mounting frame by a second bracket, the second infrared light source is mounted on the second bracket, and the second stylus contact plate is mounted on the mounting frame and located below the sensor gas module; the sensor gas module, the second infrared light source, and the second stylus contact plate are electrically connected to the control module.

[0008] When the mounting position is rotated to the position below the sensor nitrogen module, the detector plate is electrically connected to the first stylus contact plate; or when the mounting position is rotated to the position below the sensor nitrogen module, the detector plate is electrically connected to the second stylus contact plate.

[0009] Furthermore, the detection device for detecting the performance indicators of the infrared detector also includes a support shaft, which is fixed on the fixed frame, and the first bracket and the second bracket are respectively fixed on the support shaft; the first stylus contact plate and the second stylus contact plate are fixed on the support shaft by a fixed mounting plate.

[0010] Furthermore, the support shaft of the bracket is fixed to the fixed frame by a flange seat.

[0011] Furthermore, the detection device for detecting the performance indicators of the infrared detector also includes a servo motor and a main spindle. The servo motor is fixed on the fixed frame, the main spindle is connected to the output shaft of the servo motor, and the turntable is fixed on the main spindle.

[0012] Furthermore, the mounting frame includes a base plate and a support member. The turntable is rotatably mounted on the base plate. The first sensor module is fixed on the base plate by a first bracket, and the second sensor module is fixed on the mounting frame by a second bracket. The control module is mounted on the base plate. The support member is supported at the bottom of the base plate.

[0013] The technical solution of this utility model sets up a first sensor module, a second sensor module, and a detector board to detect the performance of infrared detectors respectively. The infrared detectors are classified by calculation and graded for grade classification of infrared detector products. By rotating the turntable, multiple infrared detectors can be automatically detected, thereby speeding up the detection process. Therefore, the detection device of this application can greatly improve the yield of infrared detector products and increase the efficiency of product assembly. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0015] Figure 1 This is a three-dimensional structural diagram of the detection device for detecting the performance indicators of an infrared detector according to the present invention;

[0016] Figure 2 This is a schematic diagram of the back structure of the detection device for detecting the performance indicators of an infrared detector as described in this utility model.

[0017] Explanation of icon numbers:

[0018]

[0019] Detailed Implementation

[0020] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0021] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0022] Furthermore, in this utility model, the use of terms such as "first" and "second" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "several" or "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0025] This invention proposes a detection device for detecting the performance indicators of infrared detectors, aiming to design an automatic detection device for detecting the performance indicators of infrared detectors.

[0026] The detection device for detecting the performance indicators of infrared detectors proposed in this utility model will be described below in specific embodiments:

[0027] In the technical solution of this embodiment, such as Figure 1 , Figure 2 As shown, a testing device for detecting the performance indicators of an infrared detector includes: a fixed frame 10, a turntable 20, a detector plate 30, a first sensor module, a second sensor module, and a control module 60. The turntable 20 is rotatably mounted on the fixed frame 10, and multiple mounting positions 21 for infrared detectors are provided along the circumference of the turntable 20. The detector plate 30 is located at the bottom of the turntable 20 and below the mounting positions 21. The first sensor module is fixed to the fixed frame 10 by a first bracket 44. The second sensor module is fixed to the fixed frame 10 by a second bracket 54, and the first sensor module and the second sensor module are arranged side by side on the upper side of the turntable 20. The control module 60 is located on the fixed frame 10, and the first sensor module and the second sensor module are electrically connected to the control module 60, and the detector plate 30 is electrically connected to the control module 60.

[0028] Understandably, the infrared detector can be an NDIR infrared detector.

[0029] Furthermore, the first sensor module includes: a sensor nitrogen module 41, a first infrared light source 42, and a first stylus contact plate 43; the sensor nitrogen module 41 is fixed on the mounting bracket 10 by a first bracket 44, the first infrared light source 42 is mounted on the first bracket 44, and the first stylus contact plate 43 is mounted on the mounting bracket 10 and located below the sensor nitrogen module 41; the first infrared light source 42 and the first stylus contact plate 43 are electrically connected to the control module 60 respectively.

[0030] The second sensor module includes: a sensor gas calibration module 51, a second infrared light source 52, and a second stylus contact plate 53; the sensor gas calibration module 51 is fixed on the mounting bracket 10 by a second bracket 54, the second infrared light source 52 is mounted on the second bracket 54, and the second stylus contact plate 53 is mounted on the mounting bracket 10 and located below the sensor gas calibration module 51; the sensor gas calibration module 51, the second infrared light source 52, and the second stylus contact plate 53 are electrically connected to the control module 60 respectively.

[0031] When the mounting position 21 is rotated to the underside of the sensor nitrogen module 41, the detector plate 30 is electrically connected to the first stylus contact plate 43; or when the mounting position 21 is rotated to the underside of the sensor standard gas module 51, the detector plate 30 is electrically connected to the second stylus contact plate 53.

[0032] Furthermore, the detection device for detecting the performance indicators of the infrared detector also includes a bracket support shaft 71, which is fixed on the fixed frame 10. The first bracket 44 and the second bracket 54 are respectively fixed on the bracket support shaft 71. The first stylus contact plate 43 and the second stylus contact plate 53 are fixed on the bracket support shaft 71 by a fixed mounting plate 72.

[0033] Understandably, the support shaft 71 is fixed to the fixed bracket 10 via the flange seat 73.

[0034] Furthermore, the bracket support shaft 71 is fixed to the fixed frame 10 via the flange seat 73.

[0035] Furthermore, the detection device for detecting the performance indicators of the infrared detector also includes a servo motor 81 and a main spindle 82. The servo motor 81 is fixed on the mounting bracket 10, the main spindle is connected to the output shaft of the servo motor 81, and the turntable 20 is fixed on the main spindle 82.

[0036] Understandably, the servo motor 81 is fixed to the mounting bracket 10 via a square bearing seat 83. The turntable 20 is fixed to the main disc shaft 82 via a fixed flange seat 84.

[0037] Furthermore, the mounting bracket 10 includes a base plate 11 and a support member 12. The turntable 20 is rotatably mounted on the base plate 11. The first sensor module is fixed on the base plate 11 by the first bracket 44, and the second sensor module is fixed on the mounting bracket 10 by the second bracket 54. The control module 60 is mounted on the base plate 11. The support member 12 is supported on the bottom of the base plate 11.

[0038] The surface of the turntable 20 is provided with grooves (mounting positions 21) for placing detectors, which can hold 20 detectors at a time. Detector plates 30 are designed on the lower surface of the turntable 20. The main function of the detector plates 30 is to transmit the detection signals from the detectors to the control module 60. There are 20 detector plates 30 evenly distributed under the turntable 20. The first infrared light source 42 and the second infrared light source 52 provide light to the sensor nitrogen module 41 and the sensor standard gas module 51. When the mounting position 21 is rotated below the sensor nitrogen module 41, the detector plate 30 is electrically connected to the first stylus contact plate 43; or when the mounting position 21 is rotated below the sensor standard gas module 51, the detector plate 30 is electrically connected to the second stylus contact plate 53. The control module 60 mainly collects signals and controls the operation of the servo motor 81.

[0039] The workflow is as follows: First, nitrogen gas is introduced into the nitrogen module 41 of the sensor. Then, the gas to be measured (standard gas) is introduced into the standard gas module 51 of the sensor. Power is then turned on, and the control module 60 controls the servo motor 81 to drive the turntable 20 to rotate 18 degrees at a set speed, pausing for 5 seconds each time. During each pause, the detector under test is directly below either the nitrogen module 41 or the standard gas module 51. When the detector passes the nitrogen module 41, it converts the light signal into an electrical signal, which is transmitted to the first contact plate 43 via the detector board 30. The signal is then transmitted to the control module 60 for recording and saving a set of signal values ​​A0. The detector then rotates again (18 degrees) to be directly below the standard gas module 51, converting the light signal into an electrical signal, which is transmitted to the second contact plate via the detector board 30. The signal is transmitted to contact plate 53 and then to control module 60 for recording and saving a set of signal values ​​A1. Control module 60 calculates the difference between A0 and A1, resulting in a difference value A2 (sensitivity). Then, control module 60 compares the two collected values, the calculated value, and the test set value to classify the detector into five levels (Level 1, Level 2, Level 3, Level 4, and Non-conforming). The fifth level is the non-conforming level. The classification values ​​can be manually set. The software then determines which level the detector at this location belongs to based on the set value range and displays the level below the status light for easy sorting by testing personnel.

[0040] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A detection device for detecting the performance indicators of an infrared detector, characterized in that, include: Fixture; A turntable, which is rotatably mounted on the fixed frame, has multiple mounting positions for infrared detectors along its circumference. A detector plate is disposed at the bottom of the turntable and located below the mounting position; The first sensor module is fixed on the mounting bracket by the first bracket; The second sensor module is fixed on the mounting frame by a second bracket, and the first sensor module and the second sensor module are arranged side by side on the upper side of the turntable; and A control module is mounted on the fixed frame. The first sensor module and the second sensor module are electrically connected to the control module, and the detector board is electrically connected to the control module.

2. The detection device for detecting the performance indicators of an infrared detector according to claim 1, characterized in that, The first sensor module includes: a sensor nitrogen module, a first infrared light source, and a first stylus contact plate; the sensor nitrogen module is fixed on a mounting frame by a first bracket, the first infrared light source is disposed on the first bracket, the first stylus contact plate is disposed on the mounting frame and located on the lower side of the sensor nitrogen module, and the first infrared light source and the first stylus contact plate are electrically connected to the control module respectively. The second sensor module includes: a sensor gas module, a second infrared light source, and a second stylus contact plate; the sensor gas module is fixed on a mounting frame by a second bracket, the second infrared light source is mounted on the second bracket, and the second stylus contact plate is mounted on the mounting frame and located below the sensor gas module; the sensor gas module, the second infrared light source, and the second stylus contact plate are electrically connected to the control module. When the mounting position is rotated to the position below the sensor nitrogen module, the detector plate is electrically connected to the first stylus contact plate; or when the mounting position is rotated to the position below the sensor nitrogen module, the detector plate is electrically connected to the second stylus contact plate.

3. The detection device for detecting the performance indicators of an infrared detector according to claim 2, characterized in that, The detection device for detecting the performance indicators of the infrared detector further includes a support shaft, which is fixed on the fixed frame. The first support and the second support are respectively fixed on the support shaft. The first stylus contact plate and the second stylus contact plate are fixed on the support shaft by a fixed mounting plate.

4. The detection device for detecting the performance indicators of an infrared detector according to claim 3, characterized in that, The support shaft of the bracket is fixed to the fixed frame by a flange seat.

5. The detection device for detecting the performance indicators of an infrared detector according to claim 1, characterized in that, The detection device for detecting the performance indicators of the infrared detector also includes a servo motor and a main disk shaft. The servo motor is fixed on the fixed frame, the main disk shaft is connected to the output shaft of the servo motor, and the turntable is fixed on the main disk shaft.

6. The detection device for detecting the performance indicators of an infrared detector according to claim 1, characterized in that, The mounting frame includes a base plate and a support member. The turntable is rotatably mounted on the base plate. The first sensor module is fixed on the base plate by a first bracket, and the second sensor module is fixed on the mounting frame by a second bracket. The control module is mounted on the base plate. The support member is supported at the bottom of the base plate.

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