Force-thermal coupling detection system and method for high-energy-density laser optical system

Abstract

The invention discloses a mechanical-thermal coupling detection system and method for a high-energy-density laser optical system, and belongs to the technical field of optical system detection. The problems that an existing detection means is limited to discrete testing of single physical field parameters and cannot achieve overall performance evaluation of the complex optical system under the multi-field coupling effect, and an offline detection mode is difficult to truly reflect the multi-field coupling effect of the complex optical system under the dynamic working condition and is low in testing efficiency are solved. Comprising a central control system, a shell, and a conveying belt, a mechanical loading platform, an automatic clamping assembly, a laser light source, a position sensitive detector, an infrared monitoring assembly and a high-speed camera monitoring assembly which are arranged in the shell and are in signal connection with the central control system. The device is used for force-heat coupling detection of a high-energy-density laser optical system.

Description

Technical Field

[0001] The invention relates to a force-heat coupling detection system and method for a high energy density laser optical system, belonging to the technical field of optical system detection. Background Art

[0002] With the development of science and technology, high-energy-density laser technology has been widely used in key fields such as aerospace, national defense, and environmental monitoring. These applications place extremely high demands on the stability and reliability of precision optical components and the complex optical systems they constitute. Specifically, in spacecraft laser communication systems and environmental monitoring remote sensing equipment, high-performance optical components are essential to ensure system functionality and data accuracy.

[0003] It is particularly important to note that the heat generated by high-energy-density laser sources during operation can cause local thermal expansion of the lenses in the optical system, thereby affecting the accuracy and performance of the entire optical system. Therefore, when faced with the application scenarios of high-energy-density lasers, how to effectively ensure the thermal and mechanical stability of optical components and even the entire optical system has become an important challenge facing the field of engineering technology. In addition, in actual operating environments, these optical systems often need to withstand complex mechanical stresses and thermal loads. These problems may not only cause positional displacement or deformation of optical components, but may also cause changes in material properties, ultimately leading to performance degradation or even failure of the entire optical system.

[0004] Traditional testing methods usually remove optical components from their original working environment for testing. This method has several major problems: First, it is inefficient because the process of removing and reinstalling optical components is time-consuming and labor-intensive, greatly reducing test efficiency; second, it cannot accurately reflect the actual performance. Since it is separated from the actual working environment, traditional methods find it difficult to accurately simulate and evaluate the performance of optical components under dynamic conditions; third, it introduces additional risks. The disassembly process itself may cause physical damage or introduce new error sources, affecting the subsequent use of the component; fourth, it ignores the overall performance. The method of testing a single optical component alone cannot fully evaluate the overall stability of a complex optical system composed of multiple components.

[0005] Existing detection methods are limited to discrete testing of a single physical field parameter and cannot achieve overall performance evaluation of complex optical systems under multi-field coupling. Offline detection modes are difficult to truly reflect the multi-field coupling effects of complex optical systems under dynamic conditions and have low test efficiency. Therefore, there is an urgent need for a system that can perform high-precision mechanical and thermal coupling comprehensive stability testing on an optical system composed of multiple optical components without moving or disassembling the tested components, so as to more accurately simulate various stress conditions in the actual working environment, improve the authenticity and effectiveness of the test, and provide strong support for improving the overall performance of the optical system. Summary of the invention

[0006] The present invention aims to solve the problems that existing detection means are limited to discrete testing of a single physical field parameter and cannot achieve overall performance evaluation of complex optical systems under multi-field coupling, and that offline detection modes are difficult to truly reflect the multi-field coupling effects of complex optical systems under dynamic conditions and have low test efficiency. A mechanical-thermal coupling detection system and method for high energy density laser optical systems are provided.

[0007] The technical solution adopted by the present invention to solve the above technical problems is: A mechanical-thermal coupling detection system for a high-energy-density laser optical system comprises a central control system, a shell, and a conveyor belt, a mechanical loading platform, an automatic clamping assembly, a laser light source, a position-sensitive detector, an infrared monitoring assembly, and a high-speed camera monitoring assembly arranged in the shell and connected to the central control system signal. The conveyor belt and the mechanical loading platform are arranged in a T-shape in the horizontal direction, and both ends of the conveyor belt are connected to the outside of the shell. The automatic clamping assembly is located above the mechanical loading platform and is slidably installed on the top of the shell along the length direction of the mechanical loading platform. The laser light source and the position-sensitive detector are relatively arranged on both sides of the mechanical loading platform. The optical system assembly is placed on the mechanical loading platform between the laser light source and the position-sensitive detector through a tooling fixture. The infrared monitoring assembly and the high-speed camera monitoring assembly are both installed on the top of the shell to realize deformation monitoring and temperature monitoring of the optical system assembly. Vibration is applied to the optical system assembly through the mechanical loading platform. A temperature control device and a temperature measuring device connected to the central control system signal are also arranged in the shell to provide a temperature environment for the optical system assembly through the temperature control device.

[0008] Furthermore, a positioning device is also provided inside the shell, and the positioning device is located above the conveyor belt or on a side of the conveyor belt away from the mechanical loading platform, and the positioning device is arranged along the extension line direction of the mechanical loading platform.

[0009] Furthermore, the laser light source and the position sensitive detector are both installed on the bottom of the shell through a two-dimensional moving platform to achieve the adjustment of the test position of the optical system component.

[0010] Furthermore, the infrared monitoring component and the high-speed camera monitoring component are respectively installed on the top of the shell through an omnidirectional adjustment platform to achieve the adjustment of the monitoring angles of the infrared monitoring component and the high-speed camera monitoring component.

[0011] Furthermore, a slide is installed on the top of the shell, the slide is located directly above the mechanical loading platform and one end of the slide extends to above the conveyor belt, a linear displacement sensor is installed on the slide, and the linear displacement sensor is connected to the central control system signal.

[0012] Furthermore, the temperature control device includes a refrigeration module, a heating module and a fan.

[0013] Furthermore, the shell includes a bottom plate and a protective cover buckled on the bottom plate, and the conveyor belt, the mechanical loading platform, the laser light source and the position sensitive detector are all installed on the bottom plate.

[0014] Furthermore, the protective cover is made of transparent or translucent material.

[0015] Furthermore, two conveying windows are arranged opposite to each other on the protective cover, and two ends of the conveying belt are connected with the outside of the shell through the two conveying windows respectively.

[0016] A detection method using any of the above detection systems comprises the following steps: Step 1: Install the optical system component to be tested on the matching fixture, and convey it to the bottom of the automatic clamping component through the conveyor belt. Then the automatic clamping component works to grab the optical system component or the fixture with the optical system component installed, and place it on the mechanical loading platform between the relatively arranged laser light source and the position sensitive detector. This position is the position to be tested; Step 2: Turn on the laser light source and adjust the laser power to the actual power level, and use a position sensitive detector to record the actual position of the laser as a reference; Step 3: Start the mechanical loading platform and temperature control device to apply the preset mechanical and thermal coupling load to simulate the stress and thermal load in the actual working condition. At the same time, use the position sensitive detector to record the change of laser offset, the high-speed camera monitoring component to capture the subtle deformation of the optical element, and the infrared detection component to monitor the temperature distribution in real time. The collected data is analyzed by the central control system to determine the influence of mechanical and thermal coupling effect on the stability of the optical system components. Step 4: After one optical system component begins to be inspected, repeat steps 1 to 3 to inspect another optical system component; Step 5: After the test is completed, the automatic clamping assembly takes out the optical system assembly and places it on the conveyor belt, which then delivers it out of the housing.

[0017] Compared with the prior art, the present invention has the following effects: The mechanical-thermal coupling detection system for a high-energy-density laser optical system of the present invention can simulate the stress and thermal load conditions of high-energy-density laser optical system components in actual working conditions by setting a mechanical loading platform and a temperature control device, thereby accurately reflecting the true performance of the optical system components under dynamic conditions; The mechanical-thermal coupling detection system for high-energy-density laser optical systems of the present invention performs mechanical-thermal coupling tests on the optical system components as a whole, and can comprehensively evaluate the overall stability of a complex optical system composed of multiple optical elements without the need to disassemble and reinstall the optical elements, thereby greatly improving the detection efficiency; and avoiding the physical operation caused by the disassembly process or the introduction of new error sources, thereby preventing the subsequent use of the optical elements from being affected. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the mechanical and thermal coupling detection system for a high energy density laser optical system of the present invention; Figure 2 It is a schematic front view of a mechanical-thermal coupling detection system for a high energy density laser optical system of the present invention; Figure 3 It is a three-dimensional structural schematic diagram of the internal structure of the mechanical and thermal coupling detection system for a high energy density laser optical system of the present invention (the protective cover is not shown).

[0019] In the figure: 1. Shell; 101. Bottom plate; 102. Protective cover; 2. Conveyor belt; 3. Mechanical loading platform; 4. Automatic clamping assembly; 5. Laser light source; 6. Position sensitive detector; 7. Infrared monitoring assembly; 8. High-speed camera monitoring assembly; 9. Fixture; 10. Positioning device; 11. Two-dimensional mobile platform; 12. All-round adjustment platform; 13. Slide; 14. Central control system; 15. Data acquisition card; 100. Optical system assembly. DETAILED DESCRIPTION

[0020] Specific implementation method 1: Combination Figure 1~Figure 3 This embodiment is explained, and the technical scheme in the embodiment of the present invention is clearly and completely described. Obviously, the described embodiment is only a part of the embodiment of the present invention, rather than all the embodiments. Based on the embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0021] It should be noted that the descriptions of the present invention regarding directions such as "front", "back", "left", "right", "inside", "outside", "left side", "right side", "upper", "lower", "top", "bottom", etc. are all defined based on the relationship between the orientations or positions shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the structure must be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention. In the description of the present invention, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0022] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] A mechanical-thermal coupling detection system for a high-energy-density laser optical system comprises a central control system 14, a shell 1, a conveyor belt 2 arranged in the shell 1 and connected to the central control system 14 by signal, a mechanical loading platform 3, an automatic clamping component 4, a laser light source 5, a position-sensitive detector 6, an infrared monitoring component 7, and a high-speed camera monitoring component 8, wherein the conveyor belt 2 and the mechanical loading platform 3 are arranged in a T-shape in the horizontal direction, both ends of the conveyor belt 2 are connected to the outside of the shell 1, the automatic clamping component 4 is located above the mechanical loading platform 3 and is slidably mounted on the top of the shell 1 along the length direction of the mechanical loading platform 3, The laser light source 5 and the position sensitive detector 6 are arranged relatively on both sides of the mechanical loading platform 3. The optical system component 100 is placed on the mechanical loading platform 3 between the laser light source 5 and the position sensitive detector 6 through a fixture 9. The infrared monitoring component 7 and the high-speed camera monitoring component 8 are both installed on the top of the shell 1 to realize deformation monitoring and temperature monitoring of the optical system component 100. Vibration is applied to the optical system component 100 through the mechanical loading platform 3. A temperature control device and a temperature measuring device connected to the central control system 14 signal are also provided in the shell 1. A temperature environment is provided for the optical system component 100 through the temperature control device.

[0024] The position sensitive detector 6 is a PSD. The position sensitive detector 6 is used to record the change of the laser offset. Vibration is applied by the mechanical loading platform 3 to simulate the vibration of the optical system component 100 in actual working conditions; the thermal load of the optical system component 100 in actual working conditions is simulated by the temperature control device, such as the overall temperature of the environment or the local heating condition.

[0025] The optical system component 100 is monitored for temperature distribution in real time by an infrared monitoring component 7, wherein the infrared monitoring component includes an infrared temperature measuring device and a mounting structure for mounting the infrared temperature measuring device; The micro deformation of the optical system component 100 is captured by a high-speed camera monitoring component 8 , wherein the high-speed camera monitoring component includes a high-speed camera and a mounting structure for mounting the high-speed camera.

[0026] The optical system assembly 100 to be tested is mounted on a matching fixture 9. The specific structure of the fixture 9 is prior art and will not be described in detail herein.

[0027] The thermomechanical coupling detection system for high energy density laser optical systems of the present invention can also be provided with a data acquisition card 15 to improve multi-channel parallel monitoring, and transmit the signals monitored by each device (such as laser light source 5, position sensitive detector 6, infrared monitoring component 7 or high-speed camera monitoring component 8) to the central control system 14 for processing to obtain relevant detection data.

[0028] The temperature measuring device is a conventional device capable of realizing temperature measurement, such as a temperature sensor.

[0029] The temperature control device is non-contact type.

[0030] The mechanical-thermal coupling detection system for a high-energy-density laser optical system of the present invention can simulate a real service environment without changing the position of the tested piece, and quantify the laser offset and temperature change through precise monitoring.

[0031] The mechanical-thermal coupling detection system for a high-energy-density laser optical system of the present invention can simulate the stress and thermal load of the high-energy-density laser optical system component 100 in actual working conditions by setting a mechanical loading platform 3 and a temperature control device, and can thus accurately reflect the real performance of the optical system component 100 under dynamic conditions; The mechanical-thermal coupling detection system for high-energy-density laser optical systems of the present invention performs mechanical-thermal coupling testing on the optical system component 100 as a whole, and can comprehensively evaluate the overall stability of a complex optical system composed of multiple optical elements without the need to disassemble and reinstall the optical elements, thereby greatly improving the detection efficiency; and avoiding physical operations caused by the disassembly process or the introduction of new error sources, thereby preventing the subsequent use of the optical elements from being affected.

[0032] A positioning device 10 is also provided inside the housing 1. The positioning device 10 is located above the conveyor belt 2 or on the side of the conveyor belt 2 away from the mechanical loading platform 3, and the positioning device 10 is arranged along the extension line of the mechanical loading platform 3. In this design, the positioning device 10 is provided to detect the conveying position of the optical system component 100 to be tested. When the optical system component 100 to be tested is transported to the front of the positioning device 10 via the conveyor belt 2, the positioning device 10 detects the optical system component 100 to be tested, at which time the conveyor belt 2 stops moving, the automatic clamping component 4 works, grabs the optical system component 100 or the fixture 9 with the optical system component 100 installed, and places it at the position to be tested.

[0033] The laser light source 5 and the position sensitive detector 6 are both installed on the bottom of the housing 1 through a two-dimensional mobile platform 11 to adjust the test position of the optical system component 100. With such a design, the two-dimensional mobile platform 11 can be used to adjust the angles of the laser light source 5 and the position sensitive detector 6 in the up, down, left, and right directions, thereby adjusting the test position of the optical system component 100. The two-dimensional mobile platform 11 includes a longitudinal angle adjustment component and a transverse angle adjustment component, and the longitudinal angle adjustment component is used to adjust the angle of the laser light source 5 or the position sensitive detector 6 in the up and down directions, and the transverse angle adjustment component is used to adjust the angle of the laser light source 5 or the position sensitive detector 6 in the left and right directions.

[0034] The longitudinal angle adjustment component and the transverse angle adjustment component are fixedly connected up and down as a whole. Specifically, the longitudinal angle adjustment component is fixed on the transverse angle adjustment component, or the transverse angle adjustment component is fixed on the longitudinal angle adjustment component. The specific structures of the longitudinal angle adjustment component and the transverse angle adjustment component are prior arts and are not described here. For example, the first mounting plate can be driven by the horizontally arranged drive motor output shaft to achieve up and down swinging, thereby driving the equipment (such as the laser light source 5, the position sensitive detector 6 or the transverse angle adjustment component) fixed on the first mounting plate to adjust the angle in the up and down directions. The second mounting plate can be driven by the vertically arranged drive motor output shaft to achieve left and right swinging, thereby driving the equipment (such as the laser light source 5, the position sensitive detector 6 or the longitudinal angle adjustment component) fixed on the second mounting plate to adjust the angle in the left and right directions.

[0035] The infrared monitoring component 7 and the high-speed camera monitoring component 8 are respectively installed on the top of the housing 1 through the omnidirectional adjustment platform 12 to adjust the monitoring angle of the infrared monitoring component 7 and the high-speed camera monitoring component 8. With such a design, the omnidirectional adjustment of the monitoring angle of the infrared monitoring component 7 and the high-speed camera monitoring component can be achieved through the omnidirectional adjustment platform 12, that is, circumferential rotation adjustment and pitch position adjustment, so as to achieve comprehensive monitoring of the optical system component 100. The specific structure of the omnidirectional angle adjustment platform is prior art and will not be repeated here.

[0036] A slide 13 is installed on the top of the shell 1. The slide 13 is located directly above the mechanical loading platform 3 and one end of which extends to the top of the conveyor belt 2. A linear displacement sensor is installed on the slide 13, and the linear displacement sensor is connected to the central control system 14 by signal. With such a design, the current position of the automatic clamping component 4 is recorded in real time by the linear displacement sensor. The linear displacement sensor can be a bar-shaped photosensitive element, and a laser emitting unit is installed on the automatic clamping component 4 to accurately monitor the current position. One or more positioning positions are determined in advance by the linear displacement sensor. When the automatic clamping component 4 moves to the positioning position, it stops moving and places the clamped optical system component 100 to be tested on the mechanical loading platform 3. The number of positioning positions is set as needed, and laser light sources 5 and position sensitive detectors 6 are arranged on both sides of the mechanical loading platform 3 directly below each positioning position, so as to realize mechanical and thermal coupling detection of multiple optical system components 100 at the same time through one detection system.

[0037] The temperature control device includes a cooling module, a heating module and a fan. In this design, the temperature inside the housing 1 is adjusted by the cooling module and the heating module to provide a temperature environment for the optical system component 100. The fan plays a certain cooling role. At the same time, an air quality detection module is also provided inside the housing. When the detection system is not in operation, the dust level inside the housing is detected by the air quality detection module. When dust is detected, the fan is started to clean the dust to ensure the cleanliness of the detection system and avoid interference with the optical experiment.

[0038] The housing 1 includes a bottom plate 101 and a protective cover 102 mounted on the bottom plate 101. The conveyor belt 2, the mechanical loading platform 3, the laser light source 5 and the position sensitive detector 6 are all mounted on the bottom plate 101. The protective cover 102 can be made of transparent, translucent or opaque material, and its main purpose is to provide a protective environment for the various detection devices inside it.

[0039] The protective cover 102 is made of transparent or translucent material, such as acrylic plate or glass, so as to facilitate observation of the internal situation of the protective cover 102.

[0040] Two conveying windows are oppositely formed on the protective cover 102 , and two ends of the conveying belt 2 are connected to the outside of the shell 1 through the two conveying windows.

[0041] A detection method using any of the above detection systems comprises the following steps: Step 1: Install the optical system component 100 to be tested on the matching jig 9, and convey it to the bottom of the automatic clamping component 4 through the conveyor belt 2. Then the automatic clamping component 4 works to grab the optical system component 100 or the jig 9 with the optical system component 100 installed, and place it on the mechanical loading platform 3 between the relatively arranged laser light source 5 and the position sensitive detector 6. This position is the position to be tested; the jig 9 with the optical system component 100 installed is first placed at one end of the conveyor belt 2, and then conveyed by the conveyor belt 2. When it is conveyed to the front of the positioning device 10, the positioning device 10 detects the jig 9, the conveyor belt 2 stops, and the automatic clamping component 4 starts to move, and the optical system component 100 is placed to the position to be tested along the slide 13. The position to be tested can be determined in advance by the linear displacement sensor on the slide 13, which can be one or more positions to be tested.

[0042] Step 2: Turn on the laser light source 5 and adjust the laser power to the actual power level, and use the position sensitive detector 6 to record the actual position of the laser as a reference; the actual power level is the laser power actually used by the optical system component.

[0043] Step three: Start the mechanical loading platform 3 and the temperature control device to apply a preset mechanical and thermal coupling load to simulate the stress and thermal load conditions in actual working conditions. At the same time, use the position sensitive detector 6 to record the change of the laser offset, the high-speed camera monitoring component 8 to capture the subtle deformation of the optical element, and the infrared detection component to monitor the temperature distribution in real time. The collected data is analyzed by the central control system 14 to determine the influence of the mechanical and thermal coupling effect on the stability of the optical system component 100; the larger the mean value and variance of the offset, the worse the stability of the optical system component 100.

[0044] Step 4: After one optical system component 100 begins to be inspected, repeat steps 1 to 3 to inspect another optical system component 100; this ensures that there is always an optical system component 100 being tested on the inspection system, effectively improving work efficiency.

[0045] Step 5: After the test is completed, the automatic clamping assembly 4 takes out the optical system assembly 100 and places it on the conveyor belt 2 , and the conveyor belt 2 sends it out of the housing 1 .

[0046] After the detection is completed, the signal is transmitted to the central control system 14 through the data acquisition card 15. The central control system 14 controls the movement of the two-dimensional mobile platform 11 to adjust the center position of the lens of the optical system component 100, the center of the laser light source 5 and the center of the position sensitive detector 6 to coincide with each other, and perform a calibration test of the initial position. Then, the actual working condition of mechanical vibration is simulated by force, and the force load is applied. The vibration amount is monitored in real time to detect the vibration stability of the optical system component 100, and the high-speed camera monitoring component 8 is used to monitor the subtle and slow deformation process, and the infrared monitoring component 7 is used to monitor the experimental process in real time (the high-speed camera monitoring component 8 and the infrared monitoring component 7 can both roll and pitch to perform 360° comprehensive monitoring). After the detection of an optical system component 100 is completed, the central control system 14 controls the automatic clamping component 4 to place the optical system component 100 that has been detected on the conveyor belt 2. After the positioning device 10 detects the optical system component 100, the conveyor belt 2 is started to send the optical system component 100 out. The electrical connection interface of the aviation plug is opened on the shell 1 to facilitate internal and external electrical connections.

[0047] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A thermal coupling detection system for high energy density laser optical system, characterized in that: The invention comprises a central control system, a shell (1), a conveyor belt (2) arranged in the shell (1) and connected to the central control system signal, a mechanical loading platform (3), an automatic clamping component (4), a laser light source (5), a position sensitive detector (6), an infrared monitoring component (7) and a high-speed camera monitoring component (8), wherein the conveyor belt (2) and the mechanical loading platform (3) are arranged in a T-shape in the horizontal direction, both ends of the conveyor belt (2) are connected to the outside of the shell (1), the automatic clamping component (4) is located above the mechanical loading platform (3) and is slidably mounted on the top of the shell (1) along the length direction of the mechanical loading platform (3), the laser light source (5) and the position sensitive detector (6) are arranged in a T-shape in the horizontal direction, and both ends of the conveyor belt (2) are connected to the outside of the shell (1), the automatic clamping component (4) is located above the mechanical loading platform (3) and is slidably mounted on the top of the shell (1) along the length direction of the mechanical loading platform (3), and the laser light source (5) and the position sensitive detector (6) are arranged in a T-shape in the horizontal direction. The detectors (6) are arranged relatively on both sides of the mechanical loading platform (3); the optical system component (100) is placed on the mechanical loading platform (3) between the laser light source (5) and the position sensitive detector (6) through a fixture (9); the infrared monitoring component (7) and the high-speed camera monitoring component (8) are both installed on the top of the housing (1) to realize deformation monitoring and temperature monitoring of the optical system component (100); vibration is applied to the optical system component (100) through the mechanical loading platform (3); a temperature control device and a temperature measuring device connected to the central control system signal are also arranged in the housing (1); a temperature environment is provided for the optical system component (100) through the temperature control device.

2. The thermomechanical coupling detection system for a high energy density laser optical system according to claim 1, characterized in that: A positioning device (10) is also provided inside the housing (1), and the positioning device (10) is located above the conveyor belt (2) or on a side of the conveyor belt (2) away from the mechanical loading platform (3), and the positioning device (10) is arranged along the extension line of the mechanical loading platform (3).

3. The thermomechanical coupling detection system for a high energy density laser optical system according to claim 1, characterized in that: The laser light source (5) and the position sensitive detector (6) are both mounted on the bottom of the housing (1) via a two-dimensional moving platform (11), thereby achieving adjustment of the test position of the optical system component (100).

4. The thermomechanical coupling detection system for a high energy density laser optical system according to claim 1, characterized in that: The infrared monitoring component (7) and the high-speed camera monitoring component (8) are respectively installed on the top of the housing (1) via an omnidirectional adjustment platform (12), thereby achieving adjustment of the monitoring angles of the infrared monitoring component (7) and the high-speed camera monitoring component (8).

5. The thermomechanical coupling detection system for a high energy density laser optical system according to claim 1, characterized in that: A slideway (13) is installed on the top of the shell (1), the slideway (13) is located directly above the mechanical loading platform (3) and one end of the slideway (13) extends above the conveyor belt (2), and a linear displacement sensor is installed on the slideway (13), and the linear displacement sensor is connected to the central control system signal.

6. The thermomechanical coupling detection system for a high energy density laser optical system according to claim 1, characterized in that: The temperature control device includes a refrigeration module, a heating module and a fan.

7. The thermomechanical coupling detection system for a high energy density laser optical system according to claim 1, characterized in that: The housing (1) comprises a base plate (101) and a protective cover (102) mounted on the base plate (101); the conveyor belt (2), the mechanical loading platform (3), the laser light source (5) and the position sensitive detector (6) are all mounted on the base plate (101).

8. The thermomechanical coupling detection system for a high energy density laser optical system according to claim 7, characterized in that: The protective cover (102) is made of transparent or translucent material.

9. The thermomechanical coupling detection system for a high energy density laser optical system according to claim 7, characterized in that: Two conveying windows are provided opposite to each other on the protective cover (102), and the two ends of the conveying belt (2) are connected to the outside of the shell (1) through the two conveying windows.

10. A method for detecting thermal coupling of high energy density laser optical systems, characterized in that: The mechanical-thermal coupling detection system for a high energy density laser optical system according to any one of claims 1 to 9 comprises the following steps: Step 1: The optical system component (100) to be tested is mounted on a matching fixture (9), and is conveyed to the bottom of the automatic clamping component (4) via a conveyor belt (2). The automatic clamping component (4) then operates to grab the optical system component (100) or the fixture (9) on which the optical system component (100) is mounted, and is placed on a mechanical loading platform (3) between a laser light source (5) and a position sensitive detector (6) that are arranged opposite to each other. This position is the position to be tested. Step 2: Turn on the laser light source (5), adjust the laser power to the actual power level, and use the position sensitive detector (6) to record the actual position of the laser as a reference; Step 3: Start the mechanical loading platform (3) and the temperature control device to apply a preset mechanical and thermal coupling load to simulate the stress and thermal load conditions in actual working conditions. At the same time, use a position sensitive detector (6) to record the change in laser offset, a high-speed camera monitoring component (8) to capture the slight deformation of the optical element, and an infrared detection component to monitor the temperature distribution in real time. The collected data is analyzed by a central control system to determine the influence of the mechanical and thermal coupling effect on the stability of the optical system component (100); Step 4: After one optical system component (100) begins to be inspected, steps 1 to 3 are repeated to inspect another optical system component (100); Step 5: After the test is completed, the automatic clamping component (4) is actuated to take out the optical system component (100) and place it on the conveyor belt (2), which then delivers it out of the housing (1).

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