Force-Thermal Coupling Detection System and Method for High-Energy Density Laser Optical System

Abstract

A force-thermal coupling detection system and method for a high energy density laser optical system, belonging to the technical field of optical system detection. The present invention solves the problems that existing detection means are limited to discrete tests of single physical field parameters and cannot realize the overall performance evaluation of complex optical systems under multi-field coupling, and the offline detection mode is difficult to truly reflect the multi-field coupling effect of complex optical systems under dynamic working conditions and has low test efficiency. It includes a central control system, a housing, 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 that are arranged in the housing and are signal-connected to the central control system. The present invention is used for the force-thermal coupling detection of a high energy density laser optical system.

Description

Technical Field

[0001] The present invention relates to a force-thermal 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 applied in key fields such as aerospace, national defense, and environmental monitoring. These applications pose extremely high requirements for the stability and reliability of precision optical components and the complex optical systems composed of them. Specifically, in spacecraft laser communication systems and environmental monitoring remote sensing devices, high-performance optical components are crucial for ensuring the realization of system functions and data accuracy.

[0003] It should be particularly noted that the heat generated during the operation of a high energy density laser source will cause local thermal expansion of the lenses in the optical system, thereby affecting the accuracy and performance of the entire optical system. Therefore, in the face of application scenarios of high energy density lasers, how to effectively ensure the thermal stability and mechanical stability of optical components and even the entire optical system has become an important challenge in the field of engineering technology. In addition, in the actual operating environment, these optical systems often need to withstand complex mechanical stresses and thermal loads. These problems may not only cause position offsets or deformations of optical elements, but also lead to changes in material properties, ultimately resulting in performance degradation or even failure of the entire optical system.

[0004] Traditional detection methods usually remove optical components from their original working environments for testing. This method has several main problems: First, it is inefficient because the process of disassembling and reinstalling optical components is time-consuming and laborious, greatly reducing the test efficiency; Second, it cannot accurately reflect the true performance. Since it is out of the actual working environment, it is difficult for traditional methods 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 effect of the components; Fourth, it ignores the overall performance. The method of testing individual optical components alone cannot comprehensively evaluate the overall stability of a complex optical system composed of multiple components.

[0005] Existing detection means are limited to discrete tests of single physical field parameters and cannot achieve the overall performance evaluation of complex optical systems under multi-field coupling effects. In addition, the off-line detection mode is difficult to truly reflect the multi-field coupling effects of complex optical systems under dynamic working conditions and has low test efficiency. Therefore, there is an urgent need for a system that can perform high-precision force-thermal coupling comprehensive stability tests on an optical system composed of multiple optical components without moving or disassembling the components to be tested, so as to more accurately simulate various stress conditions in the actual working environment, improve the authenticity and effectiveness of the tests, and provide strong support for enhancing the overall performance of the optical system. Summary of the Invention

[0006] The present invention is to solve the problems that the existing detection means are limited to the discrete test of single physical field parameters and cannot realize the overall performance evaluation of complex optical systems under the action of multi-field coupling, and the off-line detection mode is difficult to truly reflect the multi-field coupling effect of complex optical systems under dynamic working conditions and has low test efficiency. Furthermore, a force-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 as follows:

[0008] A force-thermal coupling detection system for high-energy density laser optical systems, including a central control system, a housing, 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 housing and signal-connected to the central control system. Among them, the conveyor belt and the mechanical loading platform are arranged in a T shape in the horizontal direction, both ends of the conveyor belt communicate with the outside of the housing, the automatic clamping assembly is located above the mechanical loading platform and is slidably installed on the top of the housing along the length direction of the mechanical loading platform, the laser light source and the position-sensitive detector are arranged opposite to each other 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 housing to realize the deformation monitoring and temperature monitoring of the optical system assembly, the mechanical loading platform applies vibration to the optical system assembly, and a temperature control device and a temperature measuring device signal-connected to the central control system are also arranged in the housing to provide a temperature environment for the optical system assembly through the temperature control device.

[0009] Furthermore, a positioning device is also arranged inside the housing. The positioning device is located above the conveyor belt or on the 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.

[0010] Furthermore, both the laser light source and the position-sensitive detector are installed on the bottom of the housing through a two-dimensional moving platform to realize the adjustment of the test position of the optical system assembly.

[0011] Furthermore, the infrared monitoring assembly and the high-speed camera monitoring assembly are respectively installed on the top of the housing through an omnidirectional adjustment platform to realize the adjustment of the monitoring angles of the infrared monitoring assembly and the high-speed camera monitoring assembly.

[0012] Furthermore, a slideway is installed on the top of the housing. The slideway is located directly above the mechanical loading platform and one end of it extends above the conveyor belt. A linear displacement sensor is installed on the slideway, and the linear displacement sensor is signal-connected to the central control system.

[0013] Further, the temperature control device includes a refrigeration module, a heating module and a fan.

[0014] Further, the housing 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.

[0015] Further, the protective cover is made of a transparent or semi-transparent material.

[0016] Further, two conveying windows are oppositely opened on the protective cover, and both ends of the conveyor belt correspondingly communicate with the outside of the housing through the two conveying windows.

[0017] A detection method using any of the above detection systems includes the following steps:

[0018] Step 1: Install the optical system component to be tested on a supporting tooling fixture, convey it to below the automatic clamping component through the conveyor belt, and then the automatic clamping component works to grab the optical system component or the tooling fixture installed with the optical system component, and place it on the mechanical loading platform between the relatively arranged laser light source and the position sensitive detector, and this position is the position to be tested;

[0019] Step 2: Turn on the laser light source, adjust the laser power to the actual power level, and use the position sensitive detector to record the actual position of the laser as a reference benchmark;

[0020] Step 3: Start the mechanical loading platform and the temperature control device to apply a preset force-thermal coupling load to simulate the stress and thermal load conditions in the actual working condition. At the same time, use the position sensitive detector to record the change of the laser offset, the high-speed camera monitoring component captures the subtle deformation of the optical element, the infrared detection component monitors the temperature distribution in real time, and the collected data is analyzed by the central control system to determine the influence of the force-thermal coupling effect on the stability of the optical system component;

[0021] Step 4: After one optical system component starts to be detected, repeat Steps 1 to 3 to detect another optical system component;

[0022] Step 5: After the test is completed, the automatic clamping component acts to take out the optical system component and place it on the conveyor belt, and it is sent out of the housing by the conveyor belt.

[0023] The present invention has the following effects compared with the prior art:

[0024] The force-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 the optical system component of the high energy density laser optical system in the actual working condition by setting the mechanical loading platform and the temperature control device, and thus can accurately reflect the true performance of the optical system component under dynamic conditions;

[0025] The force-thermal coupling detection system for a high-energy density laser optical system of the present invention conducts a force-thermal coupling test on the entire optical system component, enabling a comprehensive evaluation of the overall stability of a complex optical system composed of multiple optical elements. There is no need to disassemble and reinstall the optical elements, thus greatly improving the detection efficiency. Moreover, it avoids the physical operations and the introduction of new error sources during the disassembly process, thereby preventing the subsequent use effect of the optical elements from being affected. Brief Description of the Drawings

[0026] Figure 1 It is a schematic three-dimensional structure diagram of the force-thermal coupling detection system for a high-energy density laser optical system of the present invention;

[0027] Figure 2 It is a schematic front view of the force-thermal coupling detection system for a high-energy density laser optical system of the present invention;

[0028] Figure 3 It is a schematic three-dimensional structure diagram of the internal structure of the force-thermal coupling detection system for a high-energy density laser optical system of the present invention (the protective cover is not shown).

[0029] In the figure:

[0030] 1. Housing; 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. Tooling fixture; 10. Positioning device; 11. Two-dimensional moving platform; 12. Omnidirectional adjustment platform; 13. Slideway; 14. Central control system; 15. Data acquisition card; 100. Optical system component. Detailed Description of the Invention

[0031] Detailed Description of the Invention 1: In combination with Figures 1 to 3 This embodiment is described to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0032] It should be noted that the descriptions of directions such as "front", "rear", "left", "right", "inner", "outer", "left side", "right side", "upper part", "lower part", "top", and "bottom" in the present invention are all defined based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the described structure must be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In the description of the present invention, the meaning of "a plurality of" is more than two, unless otherwise specifically defined.

[0033] In the description of the present invention, unless otherwise clearly defined and limited, the terms "mounted", "connected", and "coupled" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0034] A force-thermal coupling detection system for a high energy density laser optical system, comprising a central control system 14, a housing 1, and a conveyor belt 2, a mechanical loading platform 3, an automatic clamping assembly 4, a laser light source 5, a position sensitive detector 6, an infrared monitoring assembly 7, and a high-speed camera monitoring assembly 8 that are arranged in the housing 1 and are signal-connected to the central control system 14. Among them, 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 communicate with the outside of the housing 1. The automatic clamping assembly 4 is located above the mechanical loading platform 3 and is slidably mounted on the top of the housing 1 along the length direction of the mechanical loading platform 3. The laser light source 5 and the position sensitive detector 6 are oppositely arranged on both sides of the mechanical loading platform 3. The optical system assembly 100 is placed on the mechanical loading platform 3 between the laser light source 5 and the position sensitive detector 6 through a tooling fixture 9. The infrared monitoring assembly 7 and the high-speed camera monitoring assembly 8 are both mounted on the top of the housing 1 to realize the deformation monitoring and temperature monitoring of the optical system assembly 100. Vibration is applied to the optical system assembly 100 through the mechanical loading platform 3. A temperature control device and a temperature measuring device that are signal-connected to the central control system 14 are also arranged in the housing 1 to provide a temperature environment for the optical system assembly 100 through the temperature control device.

[0035] The position sensitive detector 6 is the PSD. The change in the laser offset is recorded by the position sensitive detector 6. Vibration is applied through the mechanical loading platform 3 to simulate the vibration suffered by the optical system assembly 100 in the actual working condition; the thermal load situation of the optical system assembly 100 in the actual working condition, such as the overall ambient temperature or the local heat reception situation, is simulated through the temperature control device.

[0036] The temperature distribution of the optical system component 100 is monitored in real time by the infrared monitoring component 7, and the infrared monitoring component includes an infrared temperature measuring device and an installation structure for installing the infrared temperature measuring device;

[0037] The slight deformation of the optical system component 100 is captured by the high-speed camera monitoring component 8, and the high-speed camera monitoring component includes a high-speed camera and an installation structure for installing the high-speed camera.

[0038] The optical system component 100 to be tested is installed on the supporting tooling fixture 9. The specific structure of the tooling fixture 9 is prior art and will not be described herein.

[0039] The force-thermal coupling detection system for a high-energy density laser optical system 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 the laser light source 5, the position sensitive detector 6, the infrared monitoring component 7 or the high-speed camera monitoring component 8) to the central control system 14 for processing to obtain relevant detection data.

[0040] The temperature measuring device is an existing conventional device capable of realizing temperature measurement, such as a temperature sensor.

[0041] The temperature control device is non-contact.

[0042] The force-thermal coupling detection system for a high-energy density laser optical system of the present invention can simulate the real service environment without changing the position of the component to be measured, and quantify the laser offset and temperature change through precise monitoring.

[0043] The force-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 the optical system component 100 of the high-energy density laser optical system under actual working conditions by setting the mechanical loading platform 3 and the temperature control device, and thus can accurately reflect the real performance of the optical system component 100 under dynamic conditions;

[0044] The force-thermal coupling detection system for a high-energy density laser optical system of the present invention performs a force-thermal coupling test on the entire optical system component 100, can comprehensively evaluate the overall stability of a complex optical system composed of multiple optical elements, does not need to disassemble and reinstall the optical elements, and thus greatly improves the detection efficiency; and avoids the physical operation caused by the disassembly process or the situation of introducing new error sources, and thus prevents affecting the subsequent use effect of the optical elements.

[0045] Inside the housing 1, a positioning device 10 is further provided. 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 direction of the mechanical loading platform 3. With such a design, by providing the positioning device 10, it is used to detect the conveying position of the optical system component 100 to be tested. When the optical system component 100 to be tested is conveyed to the front of the positioning device 10 by the conveyor belt 2, the positioning device 10 detects the optical system component 100 to be tested. At this time, the conveyor belt 2 stops moving, and the automatic clamping component 4 works to grab the optical system component 100 or the tooling fixture 9 equipped with the optical system component 100, and place it at the position to be tested.

[0046] The laser light source 5 and the position sensitive detector 6 are both installed at the bottom of the housing 1 through the two-dimensional moving platform 11 to realize the adjustment of the test position of the optical system component 100. With such a design, through the two-dimensional moving platform 11, the angle adjustment of the laser light source 5 and the position sensitive detector 6 in the up, down, left, and right directions can be realized, and then the adjustment of the test position of the optical system component 100 can be realized. The two-dimensional moving platform 11 includes a longitudinal angle adjustment component and a transverse angle adjustment component. The longitudinal angle adjustment component is used to realize the angle adjustment of the laser light source 5 or the position sensitive detector 6 on it in the up and down directions, and the transverse angle adjustment component is used to realize the angle adjustment of the laser light source 5 or the position sensitive detector 6 on it in the left and right directions.

[0047] 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 can be fixedly installed on the transverse angle adjustment component, or the transverse angle adjustment component can be fixedly installed 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 will not be elaborated here. For example, it can be that the output shaft of a horizontally arranged driving motor drives the first mounting plate to swing up and down, and then drives the equipment (such as the laser light source 5, the position sensitive detector 6 or the transverse angle adjustment component) fixedly installed on the first mounting plate to perform the angle adjustment in the up and down directions. The output shaft of a vertically arranged driving motor drives the second mounting plate to swing left and right, and then drives the equipment (such as the laser light source 5, the position sensitive detector 6 or the longitudinal angle adjustment component) fixedly installed on the second mounting plate to perform the angle adjustment in the left and right directions.

[0048] 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 realize the monitoring angle adjustment of the infrared monitoring component 7 and the high-speed camera monitoring component 8. With such a design, through the omnidirectional adjustment platform 12, the omnidirectional adjustment of the monitoring angles of the infrared monitoring component 7 and the high-speed camera monitoring component can be realized, that is, the circumferential rotation adjustment and the pitch position adjustment, so as to realize the comprehensive monitoring of the optical system component 100. The specific structure of the omnidirectional angle adjustment platform is the prior art and will not be elaborated here.

[0049] A slideway 13 is installed on the top of the housing 1. The slideway 13 is located directly above the mechanical loading platform 3 and one end of it extends above the conveyor belt 2. A linear displacement sensor is installed on the slideway 13, and the linear displacement sensor is signal-connected to the central control system 14. With such a design, the current position of the automatic clamping component 4 is recorded in real time through the linear displacement sensor. The linear displacement sensor can be a strip-shaped photosensitive element, and a laser emission unit is installed on the automatic clamping component 4 to accurately monitor the current position. One or more positioning positions are determined in advance through 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 according to needs. Laser light sources 5 and position-sensitive detectors 6 are arranged on both sides of the mechanical loading platform 3 corresponding to the lower side of each positioning position, so as to realize the force-thermal coupling detection of multiple optical system components 100 through one detection system.

[0050] The temperature control device includes a refrigeration module, a heating module and a fan. With such a design, the temperature inside the housing 1 is adjusted through the refrigeration module and the heating module to provide a temperature environment for the optical system component 100. The fan plays a certain role in cooling. At the same time, an air quality detection module is also arranged inside the housing. In the non-working state of the detection system, the dust degree inside the housing is detected through the air quality detection module. When dust is detected, the fan is started to clean the dust to ensure the cleanliness inside the detection system and avoid interfering with the optical experiment.

[0051] The housing 1 includes a bottom plate 101 and a protective cover 102 buckled 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 installed on the bottom plate 101. The protective cover 102 can be made of transparent, semi-transparent or opaque materials, and its main purpose is to provide a protected environment for the various detection devices inside it.

[0052] The protective cover 102 is made of transparent or semi-transparent materials, such as acrylic plates or glass, etc., which is convenient for observing the situation inside the protective cover 102.

[0053] Two conveying windows are oppositely provided on the protective cover 102, and the two ends of the conveyor belt 2 communicate with the outside of the housing 1 through the two conveying windows correspondingly.

[0054] A detection method using any of the above detection systems includes the following steps:

[0055] Step 1: Install the optical system component 100 to be tested on the supporting tooling fixture 9, convey it to the lower part of the automatic clamping component 4 through the conveyor belt 2, and then the automatic clamping component 4 works to grab the optical system component 100 or the tooling fixture 9 installed with the optical system component 100, 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 measured; the tooling fixture 9 installed with the optical system component 100 is first placed at one end of the conveyor belt 2, and then conveyed through the conveyor belt 2. When it is conveyed in front of the positioning device 10, the positioning device 10 detects the tooling fixture 9, the conveyor belt 2 stops moving, and the automatic clamping component 4 moves to place the optical system component 100 along the slideway 13 to the position to be measured. The position to be measured can be determined in advance by the linear displacement sensor on the slideway 13 and can be one or more positions to be measured.

[0056] Step 2: Turn on the laser light source 5 and adjust the laser power to the actual power value, and use the position sensitive detector 6 to record the actual position of the laser as the reference benchmark; the actual power value is the laser power actually applied to the optical system component.

[0057] Step 3: Start the mechanical loading platform 3 and the temperature control device to apply the preset force-thermal coupling load to simulate the stress and thermal load conditions in the actual working condition. 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 captures the subtle deformation of the optical element, the infrared detection component monitors the temperature distribution in real time, and the collected data is analyzed by the central control system 14 to determine the influence of the force-thermal coupling effect on the stability of the optical system component 100; the larger the average value and variance of the offset, the worse the stability of the optical system component 100.

[0058] Step 4: After one optical system component 100 starts to be detected, repeat Steps 1 to 3 to detect another optical system component 100; it can ensure that there is always an optical system component 100 to be tested on the detection system, effectively improving the working efficiency.

[0059] Step 5: After the test is completed, the automatic clamping component 4 moves to take out the optical system component 100 and place it on the conveyor belt 2, and it is sent out of the housing 1 by the conveyor belt 2.

[0060] 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 moving platform 11 to adjust the centers 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, and perform the calibration test of the initial position. Then, the actual working condition of the mechanical vibration is simulated by force, and a force load is applied. The vibration amount is monitored in real time, the vibration stability of the optical system component 100 is detected, and the high-speed camera monitoring component 8 is used to monitor the subtle and slow deformation process. The infrared monitoring component 7 is used to monitor the experimental process in real time (both the high-speed camera monitoring component 8 and the infrared monitoring component 7 can roll and pitch to perform 360° comprehensive monitoring). After an optical system component 100 is detected, the central control system 14 controls the automatic clamping component 4 to place the detected optical system component 100 on the conveyor belt 2. After the positioning device 10 detects the optical system component 100, the conveyor belt 2 is started to send out the optical system component 100. An electrical connection interface for an aviation plug is opened on the housing 1 to facilitate internal and external electrical connections.

[0061] As described above, it is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A force-thermal coupling detection system for a high energy density laser optical system, characterized in that: It includes a central control system, a housing (1), and a conveyor belt (2), a mechanical loading platform (3), an automatic clamping assembly (4), a laser light source (5), a position sensitive detector (6), an infrared monitoring assembly (7), and a high-speed camera monitoring assembly (8) which are arranged inside the housing (1) and are signal-connected to the central control system. Among them, the conveyor belt (2) and the mechanical loading platform (3) are arranged in a T-shape along the horizontal direction. Both ends of the conveyor belt (2) are communicated with the outside of the housing (1). The automatic clamping assembly (4) is located above the mechanical loading platform (3) and is slidably installed on the top of the housing (1) along the length direction of the mechanical loading platform (3). The laser light source (5) and the position sensitive detector (6) are oppositely arranged on both sides of the mechanical loading platform (3). The optical system assembly (100) is placed on the mechanical loading platform (3) between the laser light source (5) and the position sensitive detector (6) through a tooling fixture (9). The infrared monitoring assembly (7) and the high-speed camera monitoring assembly (8) are both installed on the top of the housing (1) to realize the deformation monitoring and temperature monitoring of the optical system assembly (100). The mechanical loading platform (3) applies vibration to the optical system assembly (100). A temperature control device and a temperature measuring device which are signal-connected to the central control system are also arranged inside the housing (1). The temperature control device provides a temperature environment for the optical system assembly (100).

2. The force-thermal coupling detection system for a high energy density laser optical system according to claim 1, wherein: A positioning device (10) is also arranged 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 direction of the mechanical loading platform (3).

3. The force-thermal coupling detection system for a high energy density laser optical system according to claim 1, characterized in that: Both the laser light source (5) and the position sensitive detector (6) are installed on the bottom of the housing (1) through a two-dimensional moving platform (11) to realize the adjustment of the test position of the optical system assembly (100).

4. A force-thermal coupling detection system for a high energy density laser optical system according to claim 1, characterized in that: The infrared monitoring assembly (7) and the high-speed camera monitoring assembly (8) are respectively installed on the top of the housing (1) through an omnidirectional adjustment platform (12) to realize the monitoring angle adjustment of the infrared monitoring assembly (7) and the high-speed camera monitoring assembly (8).

5. The force-thermal 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 housing (1). The slideway (13) is located directly above the mechanical loading platform (3) and one end of it extends above the conveyor belt (2). A linear displacement sensor is installed on the slideway (13), and the linear displacement sensor is signal-connected to the central control system.

6. The force-thermal coupling detection system for a high energy density laser optical system according to claim 1, wherein: The temperature control device includes a refrigeration module, a heating module, and a fan.

7. A force-thermal coupling detection system for a high energy density laser optical system according to claim 1, characterized in that: The housing (1) includes a bottom plate (101) and a protective cover (102) buckled 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 installed on the bottom plate (101).

8. A force-thermal 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 a transparent or semi-transparent material.

9. The force-thermal coupling detection system for a high energy density laser optical system according to claim 7, wherein: Two conveying windows are oppositely opened on the protective cover (102). Both ends of the conveyor belt (2) correspondingly communicate with the outside of the housing (1) through the two conveying windows.

10. A force-thermal coupling detection method for a high energy density laser optical system, characterized in that: Using the force-thermal coupling detection system for a high energy density laser optical system according to any one of claims 1 to 9, comprising the following steps: Step 1: Install the optical system component (100) to be tested on the supporting tooling fixture (9), convey it to the lower part of the automatic clamping component (4) through the conveyor belt (2), and then the automatic clamping component (4) operates to grab the optical system component (100) or the tooling fixture (9) installed with the optical system component (100), and place it on the mechanical loading platform (3) between the relatively arranged laser light source (5) and the position sensitive detector (6), and this position is the position to be tested; 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 the reference benchmark; Step 3: Start the mechanical loading platform (3) and the temperature control device to apply the preset force-thermal coupling load to simulate the stress and thermal load conditions in the actual working condition. At the same time, use the position sensitive detector (6) to record the change in the laser offset, the high-speed camera monitoring component (8) captures the subtle deformation of the optical element, the infrared detection component monitors the temperature distribution in real time, and the collected data is analyzed by the central control system to determine the influence of the force-thermal coupling effect on the stability of the optical system component (100); Step 4: After one optical system component (100) starts to be detected, repeat Steps 1 to 3 to detect another optical system component (100); Step 5: After the test is completed, the automatic clamping component (4) operates to take out the optical system component (100) and place it on the conveyor belt (2), and it is sent out of the housing (1) by the conveyor belt (2).

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