Multi-channel automatic calibration system and method for high-energy laser target spot instrument

Abstract

The invention discloses a multi-channel automatic calibration system of a high-energy laser target spot instrument, which comprises a main control computer, a high-stability high-energy laser, a laser beam collimating and coupling unit, an optical splitter, a standard laser power meter and a synchronous triggering and control unit comprising a hardware synchronous circuit and a high-precision timer which are connected in sequence, the optical fiber switch type multichannel optical path switching unit is provided with a 1 * N optical fiber switch, the main control computer and the synchronous trigger and control unit are respectively connected with the optical fiber switch type multichannel optical path switching unit, the standard laser power meter is simultaneously connected with the main control computer, and the optical splitter is connected with the common input end; the invention further discloses a calibration method. Through integration of automatic optical path switching, high-precision synchronous acquisition, intelligent data processing and model fitting and full-process closed-loop control, rapid, accurate and consistent automatic calibration of all channels of the target spot instrument is realized, and a calibration report containing uncertainty analysis and complete traceability information is automatically generated.

Description

Technical Field

[0001] This invention relates to the field of high-energy laser measurement technology, specifically to a multi-channel automated calibration system for a high-energy laser target spot analyzer, and its calibration method. Background Technology

[0002] The high-energy laser spot gauge is a key device for measuring the spatiotemporal power distribution of high-energy laser beams in the far and near fields. It uses a detection array composed of multiple photodetectors or image sensors (such as CMOS or CCD) to achieve complete capture of large laser spots.

[0003] Each detection unit constitutes an independent measurement channel. To ensure the accuracy and reliability of the final output power of the target spot instrument, each channel must be precisely calibrated, that is, a quantitative relationship must be established between the grayscale value output by the image sensor and the standard laser power.

[0004] Traditional target spot instrument calibration methods mainly rely on manual operation. Operators need to use a standard laser power meter calibrated by a higher-level metrology institution to manually guide the laser to each channel of the target spot instrument in sequence, and record the standard laser power meter reading and the response value of the image sensor of the corresponding channel.

[0005] This method has the following significant drawbacks:

[0006] 1. Inefficient: For spot spectra analyzers with hundreds or even thousands of channels, manual switching and measurement take a very long time, which cannot meet the needs of rapid response and frequent calibration.

[0007] 2. Large human error: From optical path alignment and data recording to subsequent calculations, the entire process relies on manual labor, which can easily introduce operational errors and reading errors.

[0008] 3. Poor synchronization: During the calibration process, it is difficult to ensure that the standard laser power meter and the image sensor acquire the laser at the same time in strict synchronization, which leads to deviations in data matching.

[0009] 4. Consistency is difficult to guarantee: During manual operation, the power output of the laser and the optical path status may fluctuate, affecting the consistency of calibration data for each channel.

[0010] Therefore, there is an urgent need for a method and system that can achieve rapid, automatic, and accurate calibration of multiple channels and ensure the effectiveness of traceability of measurement values. Summary of the Invention

[0011] To address the problems of low efficiency, susceptibility to human error, poor synchronization, and difficulty in ensuring consistency in existing high-energy laser target spot calibration techniques, one of the objectives of this invention is to provide a multi-channel automated calibration method and system for high-energy laser target spot instruments.

[0012] The technical solution adopted by this invention to solve its technical problem is: a multi-channel automated calibration system for a high-energy laser target spot instrument, comprising a main control computer, a high-stability high-energy laser, a laser beam collimation and coupling unit, an optical splitter, a standard laser power meter, and a synchronization triggering and control unit including a hardware synchronization circuit and a high-precision timer, connected in sequence; and a fiber optic switch-type multi-channel optical path switching unit with a 1×N fiber optic switch. The main control computer and the synchronization triggering and control unit are respectively connected to the fiber optic switch-type multi-channel optical path switching unit. The standard laser power meter is also connected to the main control computer. The two output terminals of the optical splitter are respectively connected to the common input terminal of the standard laser power meter and the 1×N fiber optic switch in the multi-channel optical path switching unit. The laser beam collimation and coupling unit collimates and shapes the laser emitted by the high-energy laser into a flat-top beam. The optical splitter splits the collimated and shaped beam into two, one directly coupled into the standard laser power meter, and the other directly coupled into the standard laser power meter. The fiber optic switch-type multi-channel optical path switching unit is coupled into the main control computer. The standard laser power meter is calibrated by the calibration mechanism to monitor the power value of the high-energy laser. The fiber optic switch used in the fiber optic switch-type multi-channel optical path switching unit has each output fiber directly aligned with the sensor of one channel. The incident laser is coupled into the common input terminal of the fiber optic switch through the laser beam collimation and coupling unit. Through the internal movable reflector or magneto-optic effect, the optical path is switched to one of the N output fibers in a millisecond-level switching time, realizing rapid switching of multiple output channels. The synchronous triggering and control unit ensures synchronous data acquisition of the image sensor of the standard laser power meter and the laser target spot instrument to be calibrated through hardware synchronization circuit and high-precision timer. The main control computer and software platform integrate laser control, optical path switching control, synchronous triggering, data acquisition, model fitting, correction calculation, uncertainty analysis and report generation modules to realize full-process automated control.

[0013] The multi-channel automated calibration system for a high-energy laser target spot instrument uses a high-energy laser that is a precisely controllable and highly stable standard power output source. It employs a variable attenuator to continuously and accurately adjust the output laser quantity. Simultaneously, by setting a calibrated beam-sampling detector inside the laser, the actual output power of the laser is monitored in real time, forming a dynamic closed-loop control.

[0014] The multi-channel automated calibration system for a high-energy laser target spot instrument uses a 1×N (one input, N outputs, all optical fibers are large-core, high-damage-threshold multimode energy transmission fibers) optical fiber switch in its multi-channel optical path switching unit, with each output fiber directly aligned with the sensor of one channel.

[0015] The second objective of this invention is to perform calibration using the multi-channel automated calibration system of the aforementioned high-energy laser target spot analyzer, the steps of which are as follows:

[0016] Step 1: Connect the high-stability high-energy laser, standard laser power meter, multi-channel optical path switching unit, and the target spot instrument to be calibrated to the host computer. Perform self-tests on the standard laser power meter, the image sensor array inside the target spot instrument, the multi-channel optical path switching unit, and the high-stability high-energy laser. Set and load the preset calibration parameters (laser power gradient, number of channels to be calibrated, etc.). Start the calibration system and initialize the high-energy laser, standard laser power meter, and multi-channel optical path switching unit, etc.

[0017] Step 2: The calibration system controls the high-energy laser to emit laser light of a specific power. Through a multi-channel optical path switching unit, the laser light is automatically, quickly, and sequentially guided to the sensor of the current calibration channel. Each time the laser light is emitted, a synchronous trigger signal is sent to the standard laser power meter and the target spot meter. The synchronous trigger circuit and the high-precision timestamp mechanism ensure that the standard laser power meter and the image sensor of the current channel are strictly synchronized in acquiring data. The standard power value P_standard and the image grayscale response value G_image are obtained respectively, and they are correlated to form a data pair (P_standard, G_image). This process is repeated for all channels to be calibrated.

[0018] Step 3: For each channel, the calibration system controls the output power of the high-energy laser, collects multiple sets of (P_standard, G_image) data pairs at different output powers, and uses a data fitting algorithm to independently establish a response relationship model P=F(G) between the standard power value P and the image grayscale response value G for each channel, and stores the model parameters.

[0019] Step 4: Select a reference channel and calculate the correction factors of the remaining channels relative to the reference channel; generate a global calibration factor library containing the calibration factors of all channels for real-time correction of subsequent measurement data.

[0020] Step 5: Based on the uncertainty of the standard laser power meter, the model fitting residual, and the data dispersion, automatically calculate the standard combined uncertainty of the calibration results for each channel; and form a complete traceability chain of measurement values ​​for the standard laser power meter used in this calibration, environmental conditions, model parameters of each channel, calibration factors, and uncertainties.

[0021] Furthermore, in step two, calibration parameters are first set, and a laser power gradient list [P1, P2, ..., P...] is set. m ], the number of measurements k at each power point, and the list of channels to be calibrated. The system collects data and controls a high-stability, high-energy laser to emit laser light according to a set laser power gradient. A multi-channel optical path switching unit sequentially switches optical paths according to a set list of channels to be calibrated. Each time a laser is emitted, a synchronous trigger circuit and a high-precision timestamp mechanism ensure that the standard laser power meter and the image sensor of the current channel are strictly synchronized in acquiring the data, thus obtaining the standard power value P. standard and image grayscale response value G image And associate them to form data pairs (P) standard G image (This process iterates through all channels to be calibrated to obtain the calibration dataset.) .

[0022] Furthermore, in step two, after acquiring data from the standard laser power meter and the target spot instrument, it is determined whether the measurement has been repeated n times; otherwise, the previous step is repeated to send a synchronous trigger signal to the high-energy laser, the standard laser power meter, and the target spot instrument. If yes, it is determined whether all channels to be calibrated have been traversed; otherwise, the fiber optic switch is repeatedly switched to the channel. If yes, it is determined whether all power gradients have been traversed; otherwise, the high-energy laser power is repeatedly set. If yes, the process proceeds to step three.

[0023] Furthermore, the data processing and model building in step three involves the software processing each channel's data pair as P after all data acquisition is complete. standard G image For the sample, a quadratic response model for this channel was established by performing nonlinear regression fitting using the least squares method. Save the model parameters a, b, c and the goodness of fit R. 2 Forming a model parameter set .

[0024] Furthermore, in step four, the goodness-of-fit R is selected. 2 The highest-scoring channel is used as the reference channel. For each of the other channels, the average correction factor is calculated over the entire power range. Generate a global correction factor library containing all channels and store it in the configuration file.

[0025] Furthermore, in step five, during uncertainty analysis and report generation, the software calls a built-in algorithm to synthesize the standard uncertainty of each channel based on the uncertainty of the standard laser power meter, the uncertainty introduced by the model fitting residual, and the uncertainty introduced by the data dispersion. Based on the calculation results, a complete report is generated, including the traceability information of the standard laser power meter used, environmental conditions, model parameters and curves of each channel, calibration factor library, and uncertainty.

[0026] The beneficial effects of this invention are as follows: Through automated optical path switching and process control, rapid and continuous calibration of hundreds or even thousands of channels is achieved, reducing calibration time from hours or even days to minutes, greatly improving calibration efficiency; a strict synchronous sampling mechanism eliminates timing errors, automated data processing avoids human error, and inter-channel consistency correction ensures the uniformity of the entire target surface measurement; and a fully closed-loop automated operation from "one-click start" to "report output" is realized, reducing the technical threshold and labor intensity for operators.

[0027] By integrating automated optical path switching, high-precision synchronous acquisition, intelligent data processing and model fitting, and closed-loop control throughout the entire process, the instrument achieves rapid, accurate, and consistent automated calibration of all channels of the target spot analyzer, and automatically generates calibration reports containing uncertainty analysis and complete traceability information, significantly improving calibration efficiency and reliability. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the calibration system of the present invention;

[0029] Figure 2 This is a flowchart of the calibration method of the present invention.

[0030] The labels for each figure are as follows: 1—Main control computer, 2—High-energy laser, 3—Laser beam collimation and coupling unit, 4—Optical splitter, 5—Multi-channel optical path switching unit, 6—Standard laser power meter, 7—Synchronous triggering and control unit. Detailed Implementation

[0031] The present invention will now be described in further detail with reference to the accompanying drawings.

[0032] Example 1

[0033] Reference Figure 1As shown, this invention discloses a multi-channel automated calibration system for a high-energy laser target spot analyzer, comprising a main control computer 1, a high-stability high-energy laser 2, a laser beam collimation and coupling unit 3, an optical splitter 4, a standard laser power meter 6, and a synchronous triggering and control unit 7, connected sequentially. It also includes a fiber optic switch-type multi-channel optical path switching unit 5 with one common input and multiple outputs, based on a 1×N fiber optic switch. The main control computer 1 and the synchronous triggering and control unit 7 are respectively connected to the fiber optic switch-type multi-channel optical path switching unit 5. The standard laser power meter 6 is also connected to the main control computer 1. The two outputs of the optical splitter 4 are respectively connected to the common input of the 1×N fiber optic switch in the standard laser power meter 6 and the multi-channel optical path switching unit 5. The laser beam collimation and coupling unit 3 collimates and shapes the laser emitted by the high-energy laser 2 into a flat-top beam, and the optical splitter 4 splits the collimated and shaped beam. Two optical paths are directly coupled: one to a standard laser power meter 6, and the other to a fiber optic switch-type multi-channel optical path switching unit 5. The standard laser power meter 6, calibrated by the calibration mechanism of the main control computer 1, is used to monitor the power value of the high-energy laser 2. The fiber optic switch-type multi-channel optical path switching unit 5 uses a 1×N (one input, N outputs, all fibers are large-core, high-damage-threshold multimode power transmission fibers) fiber optic switch. Each output fiber is directly aligned with the sensor of one channel. The incident laser is coupled into the common input of the fiber optic switch through a fiber optic coupler. Through an internal movable mirror or magneto-optical effect, the optical path is switched to one of the N output fibers in milliseconds, achieving rapid switching of multiple output channels. The synchronous triggering and control unit 7 includes a hardware synchronization circuit and a high-precision timer to ensure synchronous data acquisition between the standard laser power meter 6 and the image sensor. The main control computer 1 and its software platform integrate laser control, optical path switching control, synchronous triggering, data acquisition, model fitting, correction calculation, uncertainty analysis, and report generation modules to achieve fully automated control of the entire process.

[0034] Example 2

[0035] The calibration method of the multi-channel automated calibration system for high-energy laser target spot instrument of the present invention includes the following steps.

[0036] Step 1: System initialization and self-test.

[0037] The high-stability high-energy laser 2, standard laser power meter 6, fiber optic switch-type multi-channel optical path switching unit 5, and the target spot instrument to be calibrated are connected to the host computer 1. The output port of the high-energy laser 2 is connected to the laser beam collimation and coupling unit 3 to collimate and shape the output beam and efficiently couple it with the input end of the optical splitter 4. The N fiber outputs of the multi-channel optical path switching unit 5 are connected to the N channels on the target spot instrument to be calibrated in sequence through the FC interface. The standard laser power meter 6, the image sensor array inside the target spot instrument to be calibrated, the multi-channel optical path switching unit 5, and the high-stability high-energy laser 2 are self-tested, and the preset calibration parameters (laser power gradient, number of channels to be calibrated, etc.) are set and loaded. The calibration system calibration software is started to initialize the high-energy laser 2, standard laser power meter 6, and fiber optic switch-type multi-channel optical path switching unit 5.

[0038] Step 2: Automated multi-channel rapid switching and data acquisition.

[0039] In the control system, the host computer 1, acting as the upper computer, controls the output power and laser emission of the high-energy laser 2 through an external TTL trigger interface and an Ethernet communication interface. It emits lasers of a specific power and guides them automatically, quickly, and sequentially to the sensor of the current calibration channel through a multi-channel optical path switching unit 5. Each time a laser is emitted, a synchronous trigger signal is sent to the standard laser power meter 6 and the target spot meter. The synchronous trigger circuit and the high-precision timestamp mechanism ensure that the standard laser power meter 6 and the image sensor of the current channel are strictly synchronized in acquiring data, obtaining the standard power value P_standard and the image grayscale response value G_image, respectively, and associating them to form a data pair (P_standard, G_image), and traversing all channels to be calibrated.

[0040] First, the calibration parameters are set, and then the laser power gradient list [P1, P2, ..., P] is set. m ], the number of measurements k at each power point, and the list of channels to be calibrated. .

[0041] Data is collected, and the high-stability, high-energy laser 2 is controlled to emit laser light according to the set laser power gradient. The multi-channel optical path switching unit 5 switches the optical path sequentially according to the set list of channels to be calibrated. Each time the laser is emitted, the synchronous trigger circuit and the high-precision timestamp mechanism ensure that the standard laser power meter 6 and the image sensor of the current channel are strictly synchronized to acquire standard power values ​​P. standard and image grayscale response value G image And associate them to form data pairs (P) standard G image (This process iterates through all channels to be calibrated to obtain the calibration dataset.) .

[0042] like Figure 2 As shown, after collecting data from the standard laser power meter 6 and the target spot instrument, it is determined whether the measurement has been repeated n times; otherwise, the previous step is repeated to send a synchronous trigger signal to the high-energy laser 2, the standard laser power meter 6 and the target spot instrument. If yes, it is determined whether all channels to be calibrated have been traversed; otherwise, the fiber optic switch is repeatedly switched to the channel. If yes, it is determined whether all power gradients have been traversed; otherwise, the power of the high-energy laser 2 is repeatedly set. If yes, proceed to step three.

[0043] Step 3: Automatic construction of the power-grayscale response model.

[0044] For each channel, the calibration system controls the output power of the high-energy laser 2, collects multiple sets of (P_standard, G_image) data pairs at different output powers, and uses a data fitting algorithm to independently establish a response relationship model P=F(G) between the standard power value P and the image grayscale response value G for each channel, and stores the model parameters.

[0045] Data processing and model building are performed after all data acquisition is complete. The software processes the data pairs from all channels as (P) standard G image For the sample, the least squares method was used for nonlinear regression fitting to establish the quadratic response model of this channel. Save the model parameters a, b, c and the goodness of fit R. 2 Forming a model parameter set .

[0046] Step 4: Automatic channel consistency correction and calibration factor library generation.

[0047] Select a reference channel and calculate the correction factors of the remaining channels relative to that reference channel; generate a global calibration factor library containing the calibration factors of all channels for real-time correction of subsequent measurement data.

[0048] Choose the goodness-of-fit R 2 The highest-scoring channel is used as the reference channel. For each of the other channels, the average correction factor is calculated over the entire power range. This generates a global correction factor library containing all channels and stores it in a configuration file. Where P... ref The laser power measured for the reference channel, P ji The laser power measured for the channel at column i and row j.

[0049] Step 5: Automatic uncertainty analysis and source tracing report generation.

[0050] Based on the uncertainty of the standard laser power meter 6, model fitting residuals, data dispersion, etc., the standard combined uncertainty of the calibration results of each channel is automatically calculated; the standard laser power meter 6 used in this calibration, environmental conditions, model parameters of each channel, calibration factors, and uncertainties are formed into a complete traceability chain of measurement values.

[0051] During uncertainty analysis and report generation, the software invokes a built-in algorithm to synthesize the standard uncertainty for each channel based on the uncertainty of the standard laser power meter 6, the uncertainty introduced by the model fitting residuals, and the uncertainty introduced by data dispersion. A complete report is then generated based on the calculation results, including traceability information of the standard laser power meter 6 used, environmental conditions, model parameters and graphs for each channel, a calibration factor library, and the uncertainty.

[0052] Those skilled in the art will readily understand that the above description is merely a preferred use case of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A multi-channel automated calibration system for a high-energy laser target spot analyzer, characterized in that: The system includes a main control computer (1), a high-energy laser (2), a laser beam collimation and coupling unit (3), an optical splitter (4), a standard laser power meter (6), and a synchronization triggering and control unit (7) containing a hardware synchronization circuit and a high-precision timer, all connected in sequence. It also includes a multi-channel optical path switching unit (5) based on a 1×N fiber optic switch. The main control computer (1) and the synchronization triggering and control unit (7) are respectively connected to the multi-channel optical path switching unit (5). The standard laser power meter (6) is also connected to the main control computer (1). The two outputs of the optical splitter (4) are respectively connected to the common input of the standard laser power meter (6) and the multi-channel optical path switching unit (5). The laser beam collimation and coupling unit (3) collimates and shapes the laser beam into a flat-top beam. The optical splitter (4) splits the collimated and shaped beam into two, one of which is directly coupled into the standard laser power meter (6), and the other is directly coupled into the multi-channel optical path switching unit (5). The standard laser power meter (6) is calibrated by the main control computer (1). The incident laser is coupled into the common input of the fiber optic switch through the laser beam collimation and coupling unit (3), and the optical path is switched to one of the N output fibers to achieve rapid switching of multiple output channels. The synchronous trigger and control unit (7) ensures synchronous data acquisition between the standard laser power meter (6) and the image sensor of the laser target spot instrument to be calibrated.

2. The multi-channel automated calibration system for a high-energy laser target spot analyzer according to claim 1, characterized in that, The high-energy laser (2) uses a variable attenuator to continuously and accurately adjust the output laser quantity, and monitors the actual output power of the laser in real time through an internally set beam sampling detector to form a dynamic closed-loop control.

3. A multi-channel automated calibration system for a high-energy laser target spot analyzer according to claim 1 or 2, characterized in that, In the multi-channel optical path switching unit (5), one input and N output optical fibers are all large-core multimode power transmission optical fibers, and each output optical fiber is directly aligned with a sensor of one channel.

4. The calibration method of the multi-channel automated calibration system for the high-energy laser target spot analyzer as described in claim 1, characterized in that, Includes the following steps: Step 1: Connect the high-energy laser (2), standard laser power meter (6), multi-channel optical path switching unit (5), and the target spot instrument to be calibrated to the main control computer (1). Perform self-test on the standard laser power meter (6), the image sensor array inside the target spot instrument to be calibrated, the multi-channel optical path switching unit (5), and the high-energy laser (2). Load the preset calibration parameters, start the calibration system, and initialize the high-energy laser (2), standard laser power meter (6), and multi-channel optical path switching unit (5). Step 2: The main control computer (1) controls the output power and laser emission of the high-energy laser (2), emits a laser of a specific power, and guides the laser automatically, quickly and sequentially to the sensor of the current calibration channel through the multi-channel optical path switching unit (5). Each time the laser is emitted, a synchronous trigger signal is sent to the standard laser power meter (6) and the target spot meter to ensure that the standard laser power meter (6) and the image sensor of the current channel are strictly synchronized to acquire data, obtain the standard power value P_standard and the image grayscale response value G_image respectively, and associate them to form a data pair P_standard, G_image, and traverse all channels to be calibrated. Step 3: For each channel, the calibration system controls the output power of the high-energy laser (2), collects multiple sets of data pairs under different output powers, and uses a data fitting algorithm to independently establish a response relationship model P=F(G) between the standard power value P and the image grayscale response value G for each channel, and stores the model parameters. Step 4: Select a reference channel, calculate the correction factors of the remaining channels relative to the reference channel, and generate a global calibration factor library containing the calibration factors of all channels for real-time correction of subsequent measurement data. Step 5: Based on the uncertainty of the standard laser power meter (6), the model fitting residual, and the data dispersion, automatically calculate the standard combined uncertainty of the calibration results for each channel; and form a complete traceability chain of the standard laser power meter (6), environmental conditions, model parameters of each channel, calibration factors, and uncertainties used in this calibration.

5. The multi-channel automated calibration method for a high-energy laser target spot analyzer according to claim 4, characterized in that, In step two, calibration parameters are first set, and a laser power gradient list [P1, P2, ..., P] is set. m ], the number of measurements k at each power point, and the list of channels to be calibrated. ; Collect data and control the high-energy laser (2) to emit laser according to the set laser power gradient. The multi-channel optical path switching unit (5) switches the optical path sequentially according to the set list of channels to be calibrated, traversing all channels to be calibrated to obtain the calibration dataset. .

6. The multi-channel automated calibration method for a high-energy laser target spot analyzer according to claim 5, characterized in that, In step two, after collecting data from the standard laser power meter (6) and the target spot instrument, it is determined whether the measurement has been repeated n times; otherwise, the previous step is repeated to send synchronous trigger signals to the high-energy laser (2), the standard laser power meter (6) and the target spot instrument. If yes, it is determined whether all channels to be calibrated have been traversed; otherwise, the fiber optic switch is repeatedly switched to the channel. If yes, it is determined whether all power gradients have been traversed; otherwise, the power of the high-energy laser (2) is repeatedly set. If yes, it proceeds to step three.

7. The multi-channel automated calibration method for a high-energy laser target spot analyzer according to claim 6, characterized in that, The data processing and model building in step three refers to the process where, after all data acquisition is complete, the software processes each channel's data pair as P. standard G image The sample was fitted using the least squares method for nonlinear regression to establish a quadratic response model for this channel. Save the model parameters a, b, c and the goodness of fit R. 2 Forming a model parameter set .

8. The multi-channel automated calibration method for a high-energy laser target spot analyzer according to claim 7, characterized in that, In step four, the goodness-of-fit R is selected. 2 The highest-scoring channel is used as the reference channel. For each of the other channels, the average correction factor is calculated over the entire power range. Generate a global correction factor library containing all channels and store it in a configuration file, where P ref The measured laser power, P, is used as the reference channel. ji The laser power measured for the channel at column i and row j.

9. The multi-channel automated calibration method for a high-energy laser target spot analyzer according to claim 8, characterized in that, In step five, when performing uncertainty analysis and generating a report, the standard uncertainty of each channel is synthesized based on the uncertainty of the standard laser power meter (6), the uncertainty introduced by the model fitting residual, and the uncertainty introduced by the data dispersion. A complete report is generated based on the calculation results, including the traceability information of the standard laser power meter (6) used, environmental conditions, model parameters and curves of each channel, calibration factor library, and uncertainty.

Images