Double-shaft optical speed detector and calibration method

Abstract

The invention discloses a double-shaft type optical speed detector and a calibration method, and particularly relates to the technical field of detectors. The double-shaft type optical speed detector comprises a double-optical-path detection module, a sample adaptation module, a speckle manufacturing and detecting module, a data processing and calibration module and a display and control module. According to the double-shaft type optical speed detector and the calibration method, the light path building process is simplified through the arrangement of the integrated light path module, a user can carry out detection only through simple operation, the operation convenience is improved, the detection capacity for sample characteristic changes is effectively enhanced through the arrangement of the double-light-path detection module, and the detection accuracy is improved. The high-sensitivity detection is realized, the sample adaptation module is arranged to adapt to various samples, the universality of the device is improved, and meanwhile, the speckle manufacturing and detection module is arranged to realize high-quality and high-adaptability speckle manufacturing and detection. And the data processing and calibration module and the display and control module ensure the accuracy of data and the intuition of result display.

Description

Technical Field

[0001] The present invention relates to the technical field of detectors, and in particular to a dual-axis optical speed detector and a calibration method. Background Art

[0002] In the field of speed measurement, traditional measurement methods have many limitations. For example, common contact measurement methods such as mechanical tachometers have complex structures and contain multiple mechanical transmission parts. They are prone to wear and tear during long-term use, resulting in a decrease in measurement accuracy. Moreover, contact measurement requires direct contact with the object being measured, which may not only cause a certain degree of interference to the object being measured, but also limit its application in some special environments (such as high-speed rotation, tiny object measurement, etc.);

[0003] In addition, in the existing optical detection technology, traditional devices have many shortcomings. For example, most optical components are separate, and the optical path needs to be rebuilt and debugged each time it is used, which consumes a lot of time and manpower. The system needs to be debugged again after being moved, which seriously affects work efficiency. At the same time, the detection sensitivity of conventional detection systems is limited, and it is difficult to accurately capture weak signals or subtle changes. In addition, the sample adaptability is poor, and samples of different sizes and shapes are often not effectively detected. Multiple equipment or complex adjustment methods are required. In terms of speckle production, not only is the quality difficult to guarantee, but it is also unable to flexibly adapt to different temperature environments. The production cost is high and the production efficiency is low, making it difficult to meet large-scale production needs. Summary of the invention

[0004] The main purpose of the present invention is to provide a dual-axis optical speed detector and calibration method, which can effectively solve the problems that samples of different sizes and shapes are often unable to be effectively detected, multiple equipment or complex adjustment means are required, and they cannot flexibly adapt to different temperature environments, and the production cost is high and the production efficiency is low.

[0005] To achieve the above object, the technical solution adopted by the present invention is:

[0006] A dual-axis optical speed detector, comprising:

[0007] Integrated optical path module: responsible for integrating all optical components, light sources, and imaging mechanisms;

[0008] Double optical path detection module: through the special optical path design, the light passes through the test area twice, enhancing the interaction between the light and the sample;

[0009] Sample adaptation module: It has an adjustable structure and can be flexibly adjusted according to the different sizes and shapes of the samples;

[0010] Speckle production and detection module: It can produce speckles according to the detection requirements, and by controlling the properties of primer and photoresist, it can adapt to detection in different temperature environments;

[0011] Data processing and calibration module: processes the electrical signals transmitted by the imaging mechanism and uses preset algorithms and built-in calibration parameters to eliminate measurement errors;

[0012] Display and control module: provides a human-computer interaction interface for receiving user instructions to control the detection process.

[0013] Preferably, the optical devices in the integrated optical path module are fixed by a high-precision mechanical structure and a positioning device to ensure the relative position of each optical component is accurate, maintain the stability of the optical path, and ensure detection accuracy.

[0014] Preferably, the dual-path detection module includes specially designed reflectors and beam splitters. The reflectors are used to change the direction of light so that the light passes through the test area twice, and the beam splitters are used to separate and merge the light paths. They work together to realize the dual-path detection function and improve the detection sensitivity.

[0015] Preferably, the sample adaptation module adopts a movable clamp and an adjustable bracket. The movable clamp can adjust the clamping range according to the size of the sample, and the adjustable bracket can change the height and angle of the test area to achieve adaptation to samples of different shapes and sizes.

[0016] Preferably, the speckle production and detection module is equipped with a precise temperature control system and a primer and photoresist supply device with adjustable properties. The temperature control system ensures the stability of the speckle production environment temperature, and the supply device can accurately provide primers and photoresists with different properties according to demand, thereby ensuring the quality and adaptability of speckle production.

[0017] Preferably, the data processing and calibration module includes a high-performance processor and a storage unit storing calibration algorithms and parameters. The high-performance processor performs complex computing tasks, and the storage unit provides necessary data support for calibration and data processing, thereby collaboratively realizing data processing and calibration functions.

[0018] Preferably, the display and control module has a touch screen or a key operation panel for receiving user instructions, and a high-resolution display screen for displaying test results and operation prompts, so as to facilitate user operation and result viewing.

[0019] A calibration method for a biaxial optical speed detector, the calibration method for the biaxial optical speed detector comprising the following steps:

[0020] S1. Device preparation and initialization:

[0021] Place the high-precision multifunctional optical detector on a stable workbench, turn on the power, and each module performs self-test and initialization operations. The integrated optical path module confirms that the light source, optical components and imaging mechanism are working properly and the optical path is stable;

[0022] The speckle production and detection module checks the status of the temperature control system and supply device;

[0023] The display and control module starts and displays the initialization interface, waiting for user operation;

[0024] S2. Sample installation and adaptation adjustment:

[0025] According to the size and shape of the sample, operate the sample adaptation module, use the movable clamp to adjust the clamping range, place the sample firmly in the test area, and then adjust the height and angle of the test area through the adjustable bracket to put the sample in the best detection position and ensure that the detection light path is accurately aligned with the key parts of the sample;

[0026] S3, dual optical path detection start:

[0027] The dual-path detection function is activated on the display and control module. The reflector and the beam splitter in the dual-path detection module work together to make the light emitted by the light source pass through the test area twice according to the predetermined light path, fully interact with the sample, and the light carries the sample information back to the imaging mechanism;

[0028] S4. Speckle production:

[0029] During the detection task, speckle assistance is required. According to the detection environment temperature and requirements, the speckle production parameters are set through the display and control module. The temperature control system of the speckle production and detection module adjusts the ambient temperature. The supply device provides primers and photoresists with suitable properties to produce high-quality speckles according to the preset process.

[0030] S5. Data collection and processing:

[0031] The imaging mechanism converts the received optical signal into an electrical signal and transmits it to the data processing and calibration module. The high-performance processor in the module processes the data using the algorithm in the storage unit and performs error correction in combination with the calibration parameters to obtain accurate detection data.

[0032] S6. Result output and analysis:

[0033] The data processing and calibration module transmits the processed test results to the display and control module, displays the test results in intuitive charts and numerical forms on the display screen, and gives corresponding analysis prompts. The user determines whether the sample meets the requirements based on the results. If re-testing or parameter adjustment is required, the user can repeat the above steps after operating the operation panel.

[0034] Compared with the prior art, the present invention has the following beneficial effects:

[0035] 1. The present invention simplifies the optical path construction process by setting up an integrated optical path module. Users only need to perform simple operations to carry out detection, which improves the convenience of operation. In addition, the dual-optical path detection module is set to effectively enhance the detection capability of changes in sample characteristics, thereby achieving high-sensitivity detection.

[0036] 2. The present invention can adapt to a variety of samples by setting up a sample adaptation module, thereby improving the versatility of the device. At the same time, by setting up a speckle production and detection module, high-quality and highly adaptable speckle production and detection are achieved, and the accuracy of the data and the intuitiveness of the result display are guaranteed by the data processing and calibration module and the display and control module. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is the overall flow chart of the present invention. DETAILED DESCRIPTION

[0038] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0039] like Figure 1 As shown, a dual-axis optical speed detector comprises:

[0040] Integrated optical path module: responsible for integrating all optical components, light sources, and imaging mechanisms to ensure the stability of the optical path, reduce optical path changes caused by external factors, and provide a stable optical path foundation for the entire detection process, so that users can perform detection operations without complex debugging;

[0041] Dual-path detection module: Through a special optical path design, the light passes through the test area twice, enhancing the interaction between the light and the sample, thereby improving the detection sensitivity of changes in the physical properties of the sample and being able to obtain more accurate information about the sample;

[0042] Sample adaptation module: It has an adjustable structure and can be flexibly adjusted according to the different sizes and shapes of the samples, so that it can adapt to the detection in different temperature environments. At the same time, it ensures the high quality of speckle production, provides good conditions for subsequent detection, and can accurately identify speckle information during the detection process;

[0043] Speckle production and detection module: It can produce speckles according to the detection requirements, and by controlling the properties of primer and photoresist, it can adapt to the detection in different temperature environments. At the same time, it ensures the high quality of speckle production, provides good conditions for subsequent detection, and can accurately identify speckle information during the detection process;

[0044] Data processing and calibration module: processes the electrical signals transmitted by the imaging mechanism, uses preset algorithms and built-in calibration parameters to eliminate measurement errors, improve data accuracy and reliability, and convert raw detection data into effective information for analysis and use;

[0045] Display and control module: provides a human-computer interaction interface for receiving user instructions to control the detection process, and displays the processed test results to the user in an intuitive form, making it convenient for the user to analyze the results and make operational decisions.

[0046] Specifically, the optical devices in the integrated optical path module are fixed by high-precision mechanical structures and positioning devices to ensure the accuracy of the relative positions between the optical components, maintain the stability of the optical path, and ensure detection accuracy.

[0047] Furthermore, the dual-path detection module includes specially designed reflectors and beam splitters. The reflectors are used to change the direction of light so that the light passes through the test area twice, and the beam splitters are used to separate and merge the light paths. They work together to realize the dual-path detection function and improve the detection sensitivity.

[0048] Furthermore, the sample adaptation module adopts a movable clamp and an adjustable bracket. The movable clamp can adjust the clamping range according to the sample size, and the adjustable bracket can change the height and angle of the test area to achieve adaptation to samples of different shapes and sizes.

[0049] Furthermore, the speckle production and detection module is equipped with a precise temperature control system and a primer and photoresist supply device with adjustable properties. The temperature control system ensures the stability of the speckle production environment temperature, and the supply device can accurately provide primers and photoresists with different properties according to demand, ensuring the quality and adaptability of speckle production.

[0050] Furthermore, the data processing and calibration module includes a high-performance processor and a storage unit storing calibration algorithms and parameters. The high-performance processor performs complex computing tasks, and the storage unit provides necessary data support for calibration and data processing, thereby collaboratively realizing data processing and calibration functions.

[0051] Furthermore, the display and control module has a touch screen or a key operation panel for receiving user instructions, and a high-resolution display screen for displaying test results and operation prompts, which facilitates user operation and result viewing.

[0052] A calibration method for a dual-axis optical speed detector, the calibration method for the dual-axis optical speed detector comprises the following steps:

[0053] S1. Device preparation and initialization:

[0054] Place the high-precision multifunctional optical detector on a stable workbench, turn on the power, and each module performs self-test and initialization operations. The integrated optical path module confirms that the light source, optical components and imaging mechanism are working properly and the optical path is stable;

[0055] The speckle production and detection module checks the status of the temperature control system and supply device;

[0056] The display and control module starts and displays the initialization interface, waiting for user operation;

[0057] S2. Sample installation and adaptation adjustment:

[0058] According to the size and shape of the sample, operate the sample adaptation module, use the movable clamp to adjust the clamping range, place the sample firmly in the test area, and then adjust the height and angle of the test area through the adjustable bracket to put the sample in the best detection position and ensure that the detection light path is accurately aligned with the key parts of the sample;

[0059] S3, dual optical path detection start:

[0060] The dual-path detection function is activated on the display and control module. The reflector and the beam splitter in the dual-path detection module work together to make the light emitted by the light source pass through the test area twice according to the predetermined light path, fully interact with the sample, and the light carries the sample information back to the imaging mechanism;

[0061] S4. Speckle production:

[0062] During the detection task, speckle assistance is required. According to the detection environment temperature and requirements, the speckle production parameters are set through the display and control module. The temperature control system of the speckle production and detection module adjusts the ambient temperature. The supply device provides primers and photoresists with suitable properties to produce high-quality speckles according to the preset process.

[0063] S5. Data collection and processing:

[0064] The imaging mechanism converts the received optical signal into an electrical signal and transmits it to the data processing and calibration module. The high-performance processor in the module processes the data using the algorithm in the storage unit and performs error correction in combination with the calibration parameters to obtain accurate detection data.

[0065] S6. Result output and analysis:

[0066] The data processing and calibration module transmits the processed test results to the display and control module, displays the test results in intuitive charts and numerical forms on the display screen, and gives corresponding analysis prompts. The user determines whether the sample meets the requirements based on the results. If re-testing or parameter adjustment is required, the user can repeat the above steps after operating the operation panel.

[0067] The specific steps are: select a stable workbench without obvious vibration and away from strong magnetic field interference, place the high-precision multifunctional optical detector on the workbench steadily, ensure that the instrument is firmly installed and will not move during operation, connect the power cord, and turn on the power switch of the instrument;

[0068] The integrated optical path module starts self-testing. The internal light source starts first and emits a beam of low-intensity test light. Each optical component such as lens, reflector, etc. is kept in a fixed position by a high-precision mechanical structure and a positioning device. The light propagates along the preset optical path and reaches the imaging mechanism after passing through each optical component. The imaging mechanism detects parameters such as the intensity and phase of the light and feeds back the detection results to the control unit. The control unit determines whether the optical path is normal based on the preset standard parameters. If an abnormality is found (such as the light intensity deviation exceeds a certain range, there is an obstruction in the optical path, etc.), an error prompt message is displayed on the display and control module to inform the user to check and repair. At the same time, the temperature adjustment device in the integrated optical path module is started to stabilize the internal temperature of the optical path system within a suitable working temperature range to ensure the stable performance of the optical components and avoid changes in the optical path parameters due to temperature changes.

[0069] The speckle production and detection module performs initialization operation, and the temperature control system starts working, adjusting the temperature of the speckle production area to the default initial temperature (e.g., 25°C), and monitoring the temperature change in real time to ensure that the temperature fluctuation is within a very small range. The primer and photoresist supply device performs self-inspection to check whether the pipeline is unobstructed and whether the raw material reserves are sufficient, etc., prepares the primer and photoresist supply parameters in the initial state, and waits for subsequent operation instructions;

[0070] After the display and control module is started, the brand logo, model and initialization progress bar of the instrument are displayed on the display screen, and the touch screen or key operation panel lights up, showing the initial status of each function button, such as the "Start Detection" button is unavailable, and the "Parameter Setting" button can be clicked to enter the relevant setting interface, etc., waiting for the user to proceed to the next step;

[0071] The user operates the sample adaptation module according to the actual size and shape of the sample to be tested. First, loosen the fastening device on the movable clamp and manually adjust the clamping range of the clamp according to the length, width or diameter of the sample so that the clamp can firmly clamp the sample while avoiding excessive squeezing or damage to the sample. For example, for slender samples, the two clamp arms of the clamp can be lengthened; for larger samples, the opening width of the clamp can be expanded.

[0072] Carefully place the sample in the middle of the fixture, making sure that the part of the sample to be tested is located in the center of the test area. Then, tighten the fasteners on the fixture to secure the sample firmly to prevent it from moving during the test.

[0073] Next, operate the adjustable bracket, and change the height and angle of the test area by rotating the adjustment knob on the bracket or moving the adjustment slider. For samples that need to be tested horizontally, adjust the test area to a horizontal state; for samples that need to be tested at a specific angle (such as observing the surface texture at a certain angle), accurately adjust the bracket angle according to the needs. During the adjustment process, you can use external measuring tools (such as angle rulers, spirit levels, etc.) to ensure the accuracy of the adjustment, so that the detection light path can be accurately aligned with the key parts of the sample to obtain the best detection effect;

[0074] The user clicks the "dual optical path detection" function button on the operation interface of the display and control module to issue a start command, and the display and control module transmits the command to the control circuit in the dual optical path detection module;

[0075] After receiving the command, the control circuit first activates the light source to emit a high-intensity detection light. The light propagates along the preset optical path and reaches the first specially designed spectroscope. The spectroscope divides the light into two beams. One beam of transmitted light is directly directed to the test area, interacts with the sample (such as reflection, refraction, scattering, etc.), and returns after carrying the physical property information of the sample; the other beam of reflected light is reflected by a series of reflectors, changes the direction of the light, passes through the test area again, interacts with the sample for the second time, and further enhances the light's ability to carry sample information.

[0076] After interacting with the sample twice, the light returns along its own optical path and passes through the beam splitter again. The beam splitter combines the two beams into one and then guides it to the imaging mechanism. During the whole process, the high-precision reflection surface of the reflector ensures the accurate reflection angle of the light, minimizes the light loss, and improves the detection efficiency. The monitoring sensor in the dual-path detection module monitors the intensity and phase change of the light in real time, and transmits this information to the data processing and calibration module for subsequent data processing and analysis;

[0077] When speckle is needed for auxiliary detection, the user clicks on the display and control module to enter the "speckle production" setting interface, and sets the relevant parameters of speckle production on the interface according to the detection environment temperature (which can be obtained through the built-in temperature sensor of the instrument) and specific detection requirements (such as detection accuracy, sample characteristics, etc.), including the type of primer (such as ordinary primer, high-temperature primer, etc.), the property adjustment of photoresist (such as viscosity, sensitivity, etc.), and the size, density and other parameters of speckle;

[0078] After the settings are completed, click the "Start Production" button, and the display and control module will transmit the parameters to the speckle production and detection module. The temperature control system in the speckle production and detection module will accurately adjust the temperature of the speckle production area according to the set temperature parameters. For example, if high-temperature primer and photoresist are selected, the temperature control system will heat up to the corresponding high-temperature operating temperature range (such as 80℃-120℃) and keep the temperature stable within the range of ±1℃ of the set value;

[0079] The primer and photoresist supply device accurately sprays or coats the primer and photoresist on the sample surface or a specific substrate according to the set parameters. By controlling the spraying pressure, flow rate, coating thickness and other parameters, the quality of the speckle is ensured to be uniform and stable. During the production process, the optical monitoring device in the speckle production and detection module monitors the speckle formation process in real time and detects the quality indicators of the speckle such as contrast and clarity. If it is found that the speckle quality does not meet the preset requirements (such as too low contrast, uneven speckle size, etc.), the production parameters are immediately adjusted (such as increasing or decreasing the supply of primer and photoresist, adjusting the spraying angle, etc.) until the speckle that meets the quality standards is produced;

[0080] After receiving the light after double-path detection or interaction with speckle, the imaging mechanism converts the light signal into an electrical signal. The photodetector array (such as CCD or CMOS detector) in the imaging mechanism accurately measures the intensity and distribution of the light, converts the light signal into a digital signal, and transmits it to the data processing and calibration module in a certain coding format.

[0081] After receiving the data, the high-performance processor in the data processing and calibration module first pre-processes the data, including removing noise signals, correcting the dark current and bad pixels of the detector, etc. Then, the data is analyzed and processed according to the preset algorithm. For example, for the dual-path detection data, the calculation model based on optical principles is used to calculate the physical characteristic parameters of the sample (such as refractive index change, surface roughness, etc.);

[0082] For speckle data, the deformation, displacement and other information of the sample are obtained through relevant speckle analysis algorithms (such as digital speckle correlation method);

[0083] While processing the data, the data processing and calibration module reads the pre-stored calibration parameters from the storage unit. These calibration parameters are obtained through a large number of experimental tests on standard samples, including the inherent error correction parameters of the optical system, the correction values ​​of optical constants at different temperatures, etc. The processor compares and calculates the collected data with the calibration parameters, and corrects the measurement errors in real time to further improve the accuracy and reliability of the data. The final detection data after processing and calibration is temporarily stored in the storage unit, waiting to be transmitted to the display and control module for display;

[0084] The data processing and calibration module transmits the processed test results to the display and control module in a predetermined format. The display screen in the display and control module will display the test results in the form of intuitive charts (such as line charts, bar charts, etc.), numerical values ​​(such as specific physical quantity values, percentages, etc.) and text descriptions (such as whether the test results are qualified or not, abnormal situation prompts, etc.). For example, for the thickness change of the measured sample, a line chart of the thickness change over time may be displayed on the display screen, and the specific thickness value at each time point and the percentage of thickness change are marked next to it;

[0085] The user analyzes and evaluates the sample by observing the results on the display screen. If the test results show that the sample meets the expected standards (such as physical properties within the specified range, deformation or displacement less than the allowable value, etc.), the user can record the results and proceed to the next step (such as subsequent processing and packaging of the sample). If the test results show that there is a problem with the sample (such as exceeding the standard range, having obvious defects, etc.), the user can judge whether it is a quality problem of the sample itself or an error that may exist in the test process based on the displayed analysis prompts. If it is suspected to be a test error, the user can select the "re-test" function on the display and control module, adjust the relevant test parameters (such as increasing the number of tests, changing the detection light intensity, etc.), and then start the test process again to re-test the sample to obtain more accurate results. At the same time, the display and control module also provides data storage and export functions. Users can save the test results to a local storage device or export them to a specific format (such as Excel tables, PDF files, etc.) for further data processing and analysis, or share data with other devices or systems.

[0086] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A dual-axis optical speed detector, characterized in that: include: Integrated optical path module: responsible for integrating all optical components, light sources, and imaging mechanisms; Double optical path detection module: through the special optical path design, the light passes through the test area twice, enhancing the interaction between the light and the sample; Sample adaptation module: It has an adjustable structure and can be flexibly adjusted according to the different sizes and shapes of the samples; Speckle production and detection module: It can produce speckles according to the detection requirements, and by controlling the properties of primer and photoresist, it can adapt to detection in different temperature environments; Data processing and calibration module: processes the electrical signals transmitted by the imaging mechanism and uses preset algorithms and built-in calibration parameters to eliminate measurement errors; Display and control module: provides a human-computer interaction interface for receiving user instructions to control the detection process.

2. A dual-axis optical speed detector and calibration method according to claim 1, characterized in that: The optical devices in the integrated optical path module are fixed by a high-precision mechanical structure and a positioning device, so as to ensure the relative position of each optical component is accurate, maintain the stability of the optical path, and ensure the detection accuracy.

3. A dual-axis optical speed detector and calibration method according to claim 1, characterized in that: The dual-path detection module includes a specially designed reflector and a beam splitter. The reflector is used to change the direction of light so that the light passes through the test area twice, and the beam splitter is used to separate and merge the light paths. They work together to realize the dual-path detection function and improve the detection sensitivity.

4. A dual-axis optical speed detector and calibration method according to claim 1, characterized in that: The sample adaptation module adopts a movable clamp and an adjustable bracket. The movable clamp can adjust the clamping range according to the size of the sample, and the adjustable bracket can change the height and angle of the test area to achieve adaptation to samples of different shapes and sizes.

5. A dual-axis optical speed detector and calibration method according to claim 1, characterized in that: The speckle production and detection module is equipped with a precise temperature control system and a primer and photoresist supply device with adjustable properties. The temperature control system ensures the stability of the speckle production environment temperature, and the supply device can accurately provide primers and photoresists with different properties according to demand, ensuring the quality and adaptability of speckle production.

6. A dual-axis optical speed detector and calibration method according to claim 1, characterized in that: The data processing and calibration module includes a high-performance processor and a storage unit storing calibration algorithms and parameters. The high-performance processor performs complex computing tasks, and the storage unit provides necessary data support for calibration and data processing, thereby collaboratively realizing data processing and calibration functions.

7. A dual-axis optical speed detector and calibration method according to claim 1, characterized in that: The display and control module has a touch screen or a key operation panel for receiving user instructions, and a high-resolution display screen for displaying test results and operation prompts, which is convenient for user operation and result viewing.

8. A calibration method for a biaxial optical speed detector, the calibration method for the biaxial optical speed detector comprising the following steps: S1. Device preparation and initialization: Place the high-precision multifunctional optical detector on a stable workbench, turn on the power, and each module performs self-test and initialization operations. The integrated optical path module confirms that the light source, optical components and imaging mechanism are working properly and the optical path is stable; The speckle production and detection module checks the status of the temperature control system and supply device; The display and control module starts and displays the initialization interface, waiting for user operation; S2. Sample installation and adaptation adjustment: According to the size and shape of the sample, operate the sample adaptation module, use the movable clamp to adjust the clamping range, place the sample firmly in the test area, and then adjust the height and angle of the test area through the adjustable bracket to put the sample in the best detection position and ensure that the detection light path is accurately aligned with the key parts of the sample; S3, dual optical path detection start: The dual-path detection function is activated on the display and control module. The reflector and the beam splitter in the dual-path detection module work together to make the light emitted by the light source pass through the test area twice according to the predetermined light path, fully interact with the sample, and the light carries the sample information back to the imaging mechanism; S4. Speckle production: During the detection task, speckle assistance is required. According to the detection environment temperature and requirements, the speckle production parameters are set through the display and control module. The temperature control system of the speckle production and detection module adjusts the ambient temperature. The supply device provides primers and photoresists with suitable properties to produce high-quality speckles according to the preset process. S5. Data collection and processing: The imaging mechanism converts the received optical signal into an electrical signal and transmits it to the data processing and calibration module. The high-performance processor in the module processes the data using the algorithm in the storage unit and performs error correction in combination with the calibration parameters to obtain accurate detection data. S6. Result output and analysis: The data processing and calibration module transmits the processed test results to the display and control module, displays the test results in intuitive charts and numerical forms on the display screen, and gives corresponding analysis prompts. The user determines whether the sample meets the requirements based on the results. If re-testing or parameter adjustment is required, the user can repeat the above steps after operating the operation panel.

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