Uncooled infrared detector performance test platform tool

Abstract

The utility model belongs to the technical field of testing of uncooled infrared detectors, and particularly discloses an uncooled infrared detector performance test platform tool which comprises a first base and a second base which are movably connected. A guide rail assembly is arranged at the top of the first base, a sliding block is arranged on the guide rail assembly, the sliding block is in sliding connection with the guide rail assembly, a tool adapter plate is arranged at the top of the sliding block, the tool adapter plate is movably connected with the sliding block, and a detector testing tool is arranged at the top of the tool adapter plate and used for placing an uncooled infrared detector; the two second bases are connected with supporting tables through supporting rods correspondingly. The supporting table is used for placing a blackbody radiation source. According to the utility model, the detector test tool and the two blackbody radiation sources are respectively arranged on the first base and the second base, and the first base and the second base are movably connected, so that the blackbody radiation sources are fixed, and the distance between the blackbody radiation sources and the detector test tool can be adjusted; the device is suitable for different types of uncooled infrared detectors.

Description

Technical Field

[0001] The utility model belongs to the technical field of testing non-refrigerated infrared detectors, in particular to a non-refrigerated infrared detector performance testing platform tooling. Background Art

[0002] Infrared imaging technology is widely used in various fields, including military detection and civilian surveillance. Infrared detector performance indicators are used as indicators of detector quality. Currently, detector quality indicators are generally calculated and tested in accordance with the "GB-T17444-2013 Infrared Focal Plane Array Characteristic Parameter Test Method." By securing the blackbody radiation source with a slot or fixture, it prevents displacement or vibration during testing, thereby ensuring the accuracy and repeatability of test results. However, when the blackbody radiation source is fixed in position, the distance between the detector and the source is also fixed, which cannot meet the different detection distance requirements of different detector models, resulting in poor adaptability. Utility Model Content

[0003] The purpose of the utility model is to overcome the defects in the prior art and provide a non-refrigerated infrared detector performance test platform tooling.

[0004] The utility model provides a non-cooled infrared detector performance test platform tooling, comprising: a first base and a second base, wherein two second bases are provided, and the two second bases are arranged side by side on one side of the first base and are movably connected to the first base;

[0005] A guide rail assembly is provided on the top of the first base, a slider is provided on the guide rail assembly, the slider is slidably connected to the guide rail assembly, a tool adapter plate is provided on the top of the slider, the tool adapter plate is movably connected to the slider, and a detector test tool is provided on the top of the tool adapter plate for placing an uncooled infrared detector;

[0006] The two second bases are respectively connected to a support platform via a support rod, and the support rod is located at the four corners of the support platform; the support platform is used to place a blackbody radiation source.

[0007] A further solution is that a windshield is provided between the two support platforms, and the windshield is a blackboard.

[0008] A further solution is that the support rod is a telescopic rod.

[0009] A further solution is that the detector test fixture is a cubic structure, a door panel is provided on the side of the detector test fixture facing the blackbody radiation source, a collection hole is opened on the door panel, and the position of the uncooled infrared detector is adapted to the collection hole.

[0010] A further solution is that a mounting groove is provided on a side of the first base close to the second base, and a fixing ear plate is provided on one side of the mounting groove;

[0011] A connecting plate is provided on one side of the second base, and a strip-shaped through hole is opened on the side of the connecting plate;

[0012] One end of the connecting plate slides in the mounting groove to adjust the distance between the first base and the second base. After the distance adjustment is completed, the fixing ear plate is connected to the strip-shaped through hole by a bolt.

[0013] A further solution is that the guide rail assembly includes a drive motor box and a fixed end, and the drive motor box and the fixed end are respectively fixedly connected to the first base;

[0014] Two sets of guide plates are arranged in parallel between the drive motor box and the fixed end, one end of the guide plate is connected to the drive motor box, and the other end is connected to the fixed end;

[0015] A lead screw is provided between the two sets of guide plates, one end of the lead screw is axially connected to the motor in the drive motor box, the other end of the lead screw is connected to the fixed end via a bearing, and the lead screw passes through the slider and is threadedly connected to the slider;

[0016] A guide groove is provided at the bottom of the sliding block, and the guide groove is slidably connected to the guide plate.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] The utility model arranges a detector test fixture and two blackbody radiation sources on a first base and a second base respectively. Since the first base and the second base are movably connected, the blackbody radiation source can be fixed while the distance between the blackbody radiation source and the detector test fixture can be adjusted. The utility model is suitable for different models of uncooled infrared detectors.

[0019] The tool adapter and support rod of the utility model are designed separately. When switching between different types of detectors, it is only necessary to replace the detector tool adapter and adjust the height of the support rod to quickly complete the testing requirements of different types of detectors.

[0020] The utility model is provided with a mounting groove and a fixing ear plate on the first base, and a connecting plate with a strip hole on the second base, so that the front and rear position adjustment of the blackbody radiation source is guaranteed, thereby ensuring the accuracy and consistency of the test results; sufficient redundancy is left for the performance tooling of detectors of different sizes. When switching between detectors of different models and sizes and performance test tooling, it is only necessary to loosen the bolts at the connection between the second base and the first base, and adjust the front and rear distance as needed to adapt to the test requirements of different blackbody distances and different F numbers of detectors of different models.

[0021] The tooling of the utility model has a small size, a simple and light structure, is easy to assemble and move, and a blackened wind shield is designed between the two black bodies, which effectively reduces the impact of the black body cooling fan on the detector test performance and can also be used as a normal temperature OCC calibration target. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The following drawings are only used to illustrate and explain the present invention, and are not intended to limit the scope of the present invention.

[0023] Figure 1 : Schematic diagram of the structure of the utility model;

[0024] Figure 2 : Schematic diagram of the assembly of the utility model in the test state;

[0025] Figure 3 : Schematic diagram of the detector test fixture structure;

[0026] Figure 4 : Schematic diagram of the guide rail assembly structure;

[0027] In the figure: 1. First base; 2. Guide rail assembly; 3. Slider; 4. Tool adapter plate; 5. Second base; 6. Support rod; 7. Support platform; 8. Wind shield; 9. Connecting plate; 10. Blackbody radiation source; 11. Detector test tooling; 12. Door panel; 13. Collection hole; 14. Uncooled infrared detector; 15. Guide plate; 16. Drive motor box; 17. Screw; 18. Mounting slot; 19. Fixed ear plate; 20. Fixed end. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution, design method and advantages of the present invention more clear, the present invention is further described in detail below through specific embodiments in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the present invention and are not intended to limit the present invention.

[0029] like Figure 1 and Figure 2As shown, the utility model provides a non-cooled infrared detector performance test platform tooling, including: a first base 1 and a second base 5, two second bases 5 are provided, and the two second bases 5 are arranged side by side on one side of the first base 1 and are movably connected to the first base 1; specifically, a mounting groove 18 is provided on the side of the first base 1 close to the second base 5, and a fixing ear plate 19 is provided on one side of the mounting groove 18; a connecting plate 9 is provided on one side of the second base 5, and a strip-shaped through hole is provided on the side of the connecting plate 9; one end of the connecting plate 9 slides in the mounting groove 18 to realize the adjustment of the distance between the first base 1 and the second base 5. After the distance adjustment is completed, the fixing ear plate 19 is connected to the strip through hole by bolts. A guide rail assembly 2 is mounted on top of the first base 1. A slider 3 is mounted on the guide rail assembly 2 and is slidably connected to the guide rail assembly 2. A tool adapter plate 4 is mounted on top of the slider 3 and is movably connected to the slider 3. A detector test fixture 11 is mounted on top of the tool adapter plate 4, which is used to place an uncooled infrared detector 14. Two second bases 5 are connected to support platforms 7 via support rods 6, located at the four corners of the support platforms 7. The support platforms 7 are used to place blackbody radiation sources 10. During testing, the uncooled infrared detector 14 is placed on the detector test fixture 11 and driven by the slider 3 to slide on the guide rail assembly 2. When the detector 14 slides to the front of the first blackbody radiation source 10, one information acquisition is completed. When the detector 14 slides to the front of the second blackbody radiation source 10, two information acquisitions are completed. After five information acquisitions are completed, the test software completes the test of the uncooled infrared detector.

[0030] In this embodiment, a windshield 8 is provided between the two support platforms 7. This windshield 8 serves as a black body radiation source, effectively reducing the impact of the blackbody cooling fan's airflow on the test performance of the uncooled infrared detector 14. Since the performance test of the uncooled infrared detector 14 requires target calibration of the voltage output value of each pixel, the windshield 8 is positioned between the two blackbody radiation sources 10. The user can align the uncooled infrared detector 14 with the windshield 8. Since the windshield 8 serves as a black body radiation source, it can be used as a uniform target for OCC calibration.

[0031] After replacing a different model of uncooled infrared detector 14, it is necessary to adjust the height of the blackbody radiation source 10 to adapt it to the uncooled infrared detector 14. The support rod 6 can be replaced with a different height. For ease of operation, in this embodiment, the support rod 6 is a telescopic rod. Only the height of the support rod 6 needs to be adjusted.

[0032] like Figure 3As shown, the detector test fixture 11 is a cubic structure. A door panel 12 is provided on the side of the detector test fixture 11 facing the blackbody radiation source 10. A collection hole 13 is opened on the door panel 12. The position of the uncooled infrared detector 14 is adapted to the collection hole 13. Specifically, when the detector test fixture 11 slides to the front of the blackbody radiation source 10, the uncooled infrared detector 14 completes information collection through the collection hole 13.

[0033] In order to ensure the accuracy of the sliding of the detector test fixture 11, Figure 4 As shown, the guide rail assembly 2 includes a drive motor box 16 and a fixed end 20, and the drive motor box 16 and the fixed end 20 are respectively fixedly connected to the first base 1; two groups of guide plates 15 are arranged in parallel between the drive motor box 16 and the fixed end 20, one end of the guide plate 15 is connected to the drive motor box 16, and the other end is connected to the fixed end 20; a lead screw 17 is arranged between the two groups of guide plates 15, one end of the lead screw 17 is axially connected to the motor in the drive motor box 16, and the other end of the lead screw 17 is connected to the fixed end 20 through a bearing, and the lead screw 17 passes through the slider 3 and is threadedly connected to the slider 3; a guide groove is opened at the bottom of the slider 3, and the guide groove is slidably connected to the guide plate 15.

[0034] While various embodiments of the present invention have been described above, the above descriptions are illustrative and non-exhaustive, and are not intended to be limiting of the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is selected to best explain the principles of the embodiments, their practical applications, or technological improvements in the marketplace, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A non-cooled infrared detector performance test platform tooling, characterized in that: include: A first base (1) and a second base (5), wherein at least two second bases (5) are provided, and the two second bases (5) are arranged side by side on one side of the first base (1) and are movably connected to the first base (1); A guide rail assembly (2) is provided on the top of the first base (1), a slider (3) is provided on the guide rail assembly (2), the slider (3) is slidably connected to the guide rail assembly (2), a tool adapter plate (4) is provided on the top of the slider (3), the tool adapter plate (4) is movably connected to the slider (3), and a detector test tool (11) is provided on the top of the tool adapter plate (4) for placing a non-cooled infrared detector (14); The second base (5) is connected to a support platform (7) via support rods (6), respectively. The support rods (6) are located at the four corners of the support platform (7); the support platform (7) is used to place a blackbody radiation source (10).

2. The uncooled infrared detector performance test platform tooling according to claim 1 is characterized in that: The number of the support platforms (7) corresponds to the number of the second bases (5); windshields (8) are provided between the support platforms (7); and the windshields (8) are blackboards.

3. The uncooled infrared detector performance test platform tooling according to claim 1 is characterized in that: The support rod (6) is a telescopic rod.

4. The uncooled infrared detector performance test platform tooling according to claim 1 is characterized in that: The detector test fixture (11) is a cubic structure. A door panel (12) is provided on a side of the detector test fixture (11) facing the blackbody radiation source (10). A collection hole (13) is provided on the door panel (12). The position of the non-cooled infrared detector (14) is adapted to the collection hole (13).

5. The uncooled infrared detector performance test platform tooling according to claim 1 is characterized in that: A mounting groove (18) is provided on one side of the first base (1) close to the second base (5), and a fixing ear plate (19) is provided on one side of the mounting groove (18); A connecting plate (9) is provided on one side of the second base (5), and a strip-shaped through hole is opened on the side of the connecting plate (9); One end of the connecting plate (9) slides in the mounting groove (18) to adjust the distance between the first base (1) and the second base (5). After the distance adjustment is completed, the fixing ear plate (19) is connected to the strip-shaped through hole by bolts.

6. The uncooled infrared detector performance test platform tooling according to claim 1, characterized in that: The guide rail assembly (2) comprises a drive motor box (16) and a fixed end (20), wherein the drive motor box (16) and the fixed end (20) are respectively fixedly connected to the first base (1); Two sets of guide plates (15) are arranged in parallel between the drive motor box (16) and the fixed end (20), one end of the guide plate (15) is connected to the drive motor box (16), and the other end is connected to the fixed end (20); A lead screw (17) is provided between the two groups of guide plates (15), one end of the lead screw (17) is axially connected to the motor in the drive motor box (16), the other end of the lead screw (17) is connected to the fixed end (20) via a bearing, and the lead screw (17) passes through the slider (3) and is threadedly connected to the slider (3); A guide groove is provided at the bottom of the slider (3), and the guide groove is slidably connected to the guide plate (15).

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