A method for interactively processing measurement data of a rotating temperature field simulation test bench

Abstract

A method for interactively processing measurement data of a rotating temperature field simulation test bench is based on a graphical user interface including but not limited to python, MATLAB and other software to execute the following process by running a data preprocessing module, a phase solving module, a standard reference temperature solving module, a radiation temperature solving module, a drawing module and a data analysis module: input one or more indication parameters, load measurement data, and the data preprocessing module preprocesses the measurement data; the phase solving module solves the phase information; the standard reference temperature solving module solves the standard reference temperature; input one or more indication parameters, the radiation temperature solving module restores the measurement data, and then uses the restored data to solve the radiation temperature; input one or more indication parameters after the solution is completed, and the drawing module draws the corresponding radiation temperature distribution diagram; finally, the data analysis module performs data analysis; it is conducive to realizing visual analysis of the test bench test data and judging the health status of the surface of the measured blade.

Description

Technical Field

[0001] The invention relates to the technical field of rotating temperature field measurement data processing, and in particular to a rotating temperature field simulation test bench measurement data interactive processing method. Background Art

[0002] The rotating temperature field simulation test bench plays a vital role in the research and development of the radiation temperature measurement technology of turbine blades. On the one hand, it can provide standard reference temperature for comparison with the temperature data measured by the developed radiation pyrometer, thereby playing the role of calibration and calibration; on the other hand, it can provide the phase information of the blade, which is convenient for separating the surface temperature of different blades. In the actual working conditions of turbine blades, the accurate acquisition of the surface temperature field can realize the real-time monitoring of its health status and prevent failure, derive the thermal stress distribution on the blade surface, and provide important raw data for key steps such as turbine blade material research, cooling scheme optimization, structural design, and life estimation. It is an important prerequisite for conducting high-performance turbine blade research and achieving higher turbine pre-temperature and greater thrust-to-weight ratio. The processing method of the data measured by the test bench directly determines the temperature measurement accuracy of the temperature field measured by the radiation pyrometer. The amount of data obtained at a high-speed sampling rate is large, and the phase synchronization is complex. It is difficult to completely and accurately extract the temperature comparison data manually. Interactive programming based on python or MATLAB allows users to personalize data processing and improve computing efficiency. The visualization of temperature field data will speed up the determination of the health status of the measured blades. Summary of the invention

[0003] The present invention aims at the deficiencies in the prior art of the rotary temperature field simulation test bench, and provides a method for interactively processing the measurement data of the rotary temperature field simulation test bench. The method is based on a graphical user interface including but not limited to software such as python and MATLAB, and generally includes a data preprocessing module, a phase solution module, a standard reference temperature solution module, a radiation temperature solution module, a drawing module and a data analysis module. Specifically, a graphical user interface is established, one or more indication parameters are input, and the measurement data is loaded. The data preprocessing module preprocesses the measurement data; the phase solution module solves the phase information; the standard reference temperature solution module solves the standard reference temperature; one or more indication parameters are input, and the radiation temperature solution module restores the measurement data, and then uses the restored data to solve the radiation temperature. The solution methods are divided into two types, namely the K value method and the curve fitting method; one or more indication parameters are input after the solution is completed, and the drawing module draws the corresponding radiation temperature distribution diagram; and finally the data analysis module performs data analysis. The present invention is conducive to the visual analysis of the test bench test data, and is particularly suitable for the comparison of the radiation temperature of the rotary temperature field simulation test bench with the standard thermocouple temperature at a high sampling rate and the determination of the surface health status of the measured blade.

[0004] The technical solution of the present invention is as follows:

[0005] A method for interactively processing measurement data of a rotary temperature field simulation test bench, characterized in that it comprises the following steps:

[0006] Step 1, establishing a graphical user interface for running the following modules: a data preprocessing module, a phase solution module, a standard reference temperature solution module, a radiation temperature solution module, a drawing module, and a data analysis module;

[0007] Step 2, input one or more indication parameters and load measurement data, and the data preprocessing module preprocesses the measurement data;

[0008] Step 3, the phase calculation module calculates the phase information;

[0009] Step 4, the standard reference temperature calculation module calculates the standard reference temperature;

[0010] Step 5, input one or more indicating parameters, the radiation temperature solution module restores the measured data, and then uses the restored data to solve the radiation temperature using one or more solution methods;

[0011] Step 6, input one or more indicating parameters once or multiple times, and the drawing module continuously draws the corresponding radiation temperature distribution diagram measured once or multiple times;

[0012] Step 7: The data analysis module performs data analysis.

[0013] The step 1 includes using python software or MATLAB software to establish a graphical user interface including a data preprocessing panel, a phase solution panel, a standard reference temperature solution panel, a radiation temperature solution panel, a drawing panel and a data analysis panel, each panel having an indication parameter input area, an interactive display area and function buttons, the drawing panel including a drawing area, the radiation temperature solution panel including a K value method panel and a fitting method panel, and the K value method panel and the fitting method panel both have an indication parameter input area and function buttons.

[0014] The indicating parameter in step 2 is the sampling frequency or the downsampling frequency, and the measurement data in step 2 is the measurement data of the temperature field simulation test bench of the aircraft engine turbine rotating blade, including one or more thermocouple data representing the standard reference temperature, multiple photoelectric detector data representing the radiation temperature, and multiple encoder data representing the phase information.

[0015] The phase information calculated in step 3 includes the number of rotations, angle, and speed.

[0016] In step 4, the standard reference temperature is displayed as a standard reference temperature curve by visual processing.

[0017] The indicated parameters in step 5 include attenuation coefficients of different wavelengths. In different temperature ranges, the attenuation plate needs to be increased or decreased according to the actual situation to achieve the response range of the photodetector. The radiation temperature is calculated by the K value method or the curve fitting method. The K value method includes inputting a fitted K value curve or an approximate value. The curve fitting method includes inputting a fitted voltage / voltage ratio-temperature calibration curve.

[0018] The indication parameters in step 6 include the time value after the measurement starts, the number of rotations and the blade number. The temperature distribution diagram includes a main diagram and a color bar showing color levels. The main diagram of a single temperature distribution diagram includes straight lines, curves, single or multiple scattered points, single or multiple scattered rectangles, and single or multiple scattered triangles. The main diagram of multiple temperature distribution diagrams includes rings, circles, rectangles, sectors, and blade shapes.

[0019] The step 6 includes inputting the time, and the main figure of the single temperature distribution diagram drawn is n scattered circles, n is a positive integer, and the color depth of the circle corresponds to the measured radiation temperature; inputting the number of circles, and the main figure of the multiple temperature distribution circle diagram drawn is a circular ring, and the radiation temperature measured at different times and phases is distributed on the ring; inputting the blade number, the drawing module separates the surface temperature of a single blade under the number of circles, and draws the surface temperature distribution diagram of the blade.

[0020] The data analysis in step 7 includes one or more of the following:

[0021] (1) Enter a time and display one or more temperature values ​​measured by the radiation pyrometer probe at that time;

[0022] (2) Enter the number of turns and angles to query one or more temperature values ​​measured by the radiation pyrometer probe under these conditions;

[0023] (3) Enter the circle number and query the temperature value measured by the thermocouple at a fixed position under the circle;

[0024] (4) Enter the circle number, and the error between the temperature measured by the radiation pyrometer and the standard temperature in that circle will be displayed;

[0025] (5) Enter the circle number, and display the maximum temperature value and its position in the circle, including but not limited to phase, radial distance, and blade number;

[0026] (6) When the temperature of the test piece is stable within a certain number of turns, the radiation temperature and standard temperature at the same position under different numbers of turns are averaged to display the error between the temperature measured by the radiation pyrometer and the standard temperature;

[0027] (7) Input the radial position coordinates to display the circular distribution curve of the radiation temperature at that radius.

[0028] The technical effects of the present invention are as follows: 1. The present invention provides a method for interactively processing measurement data of a rotating temperature field simulation test bench, which is easy to operate, allows users to personalize data processing, and simplifies the test bench measurement data processing flow. 2. The present invention provides a method for interactively processing measurement data of a rotating temperature field simulation test bench, which visualizes the temperature field data and can speed up the determination of the health status of the blades. 3. The present invention provides a method for interactively processing measurement data of a rotating temperature field simulation test bench, which is particularly suitable for comparing the radiation temperature of a rotating temperature field simulation test bench with the standard thermocouple temperature at a high-speed sampling rate, which improves the calculation efficiency and makes the error analysis more intuitive. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 The present invention is a schematic flow chart of a method for interactively processing measurement data of a rotary temperature field simulation test bench. Figure 1 The method comprises step L1, establishing a graphical user interface (including interfaces for the following modules: a data preprocessing module S0, a phase solving module S1, a standard reference temperature solving module S2, a radiation temperature solving module S3, a drawing module S4, and a data analysis module S5); step L2, inputting one or more indicating parameters (for example, the sampling frequency of the temperature field of the rotating blades of an aircraft engine turbine, etc.) and loading the measurement data (the measurement data of the rotating temperature field simulation test bench, simulating the temperature field of the rotating blades of an aircraft engine turbine), and the data preprocessing module preprocesses the measurement data; step L3, the phase solving module solves the phase information (obtains the number of turns, angle, rotation speed, etc.); step L4, the standard reference temperature solving module solves the standard reference temperature degree (for example, by solving the thermocouple temperature to obtain a temperature curve); step L5, input one or more indicating parameters (for example, input attenuation coefficient), the radiation temperature solving module restores the measured data, and then uses the restored data to solve the radiation temperature using one or more solving methods (the solving method includes K value method or fitting method, the K value method uses emissivity data, and K value or curve obtained by K value calibration, the fitting method uses fitting parameters calibrated by temperature and voltage ratio); step L6, input one or more indicating parameters (for example, input time, number of rotations or blade number, etc.) once or multiple times, the drawing module continuously draws the corresponding radiation temperature distribution diagram measured once or multiple times; step L7, the data analysis module performs data analysis.

[0030] Figure 2 A schematic diagram of a graphical user interface according to a reference embodiment of the present invention. Figure 2It includes a data preprocessing panel (including an indication parameter input area, an interactive display area, and function buttons), a phase solution panel (including an indication parameter input area, an interactive display area, and function buttons), a reference temperature solution panel (including an indication parameter input area, an interactive display area, and function buttons), a radiation data solution panel (including a K value method and a fitting method, the K value method includes an indication parameter input area and a function button; the fitting method includes an indication parameter input area and a function button), a drawing panel (including a drawing area, an indication parameter input area, an interactive display area, and function buttons), and a data analysis panel (including an indication parameter input area, an interactive display area, and function buttons).

[0031] Figure 3 The figure is a schematic diagram of data transmission between modules according to a reference embodiment of the present invention. Figure 3 The measurement data in the datasheet include 3 channels of thermocouple data (data1 / data2 / data3), 10 channels of photodetector data (data4 / data5 / data6 / data7 / data8 / data9 / data10 / data11 / data12 / data13), and 2 channels of encoder data (data14 / data15). Figure 3 The S1 phase solution module takes out 2 encoder data (encoder voltage), downsamples it and solves the phase information, including angle, number of turns, speed, etc.; the S2 standard reference temperature solution module takes out 3 thermocouple data (data1 / data2 / data3), downsamples it and solves the standard reference temperature information, and draws the temperature curve; the S3 radiation temperature solution module includes the S3.1K value method temperature solution module and the S3.2 fitting method temperature solution module. The radiation temperature solution module combines the radiation voltage with the downsampled frequency to form downsampled data, and the downsampled data is combined with the attenuation coefficient to restore the voltage. The restored voltage is transmitted to the K value method temperature solution module and the fitting method temperature solution module respectively. The S3.1K value method temperature solution module filters the restored voltage value, and combines the black body furnace calibration data and emissivity data to perform temperature solution to obtain the radiation temperature data; then in the S4 drawing module, the sampling time is input to form a time diagram, the number of turns is input to form a turn diagram, or the blade number is input to form a blade diagram. The S5 data analysis module obtains the temperature values ​​of the five channels at the time by inputting the sampling time, and obtains the temperature values ​​of the five channels at the angle and the thermocouple temperature at the zero phase in the circle by inputting the number of circles and the angle, as well as the error between the standard reference thermocouple temperature and the radiation temperature at the corresponding position. The S3.2 fitting method temperature solution module continuously takes the zero-phase radiation voltage and matches it with the thermocouple temperature. After solving the temperature, the calibration curve is obtained through the fitting function. The existing voltage ratio-temperature data file can also be placed in the corresponding path to fit the voltage ratio temperature curve; the temperature is solved according to the fitting method by inputting the fitted parameters, and the subsequent drawing and data analysis are consistent with the data transmission and operation of the K value method. DETAILED DESCRIPTION

[0032] Below is the attached figure ( Figure 1-Figure 3 ) and Examples illustrate the present invention.

[0033] Figure 1 The present invention is a schematic flow chart of a method for interactively processing measurement data of a rotary temperature field simulation test bench. Figure 2 A schematic diagram of a graphical user interface according to a reference embodiment of the present invention. Figure 3 This is a schematic diagram of data transmission between modules of a reference embodiment of the present invention. Figures 1 to 3 As shown, a method for interactively processing measurement data of a rotating temperature field simulation test bench includes the following steps: step 1, establishing a graphical user interface; step 2, inputting one or more indication parameters and loading measurement data, and a data preprocessing module preprocesses the measurement data; step 3, a phase solution module solves phase information; step 4, a standard reference temperature solution module solves standard reference temperature; step 5, inputting one or more indication parameters, a radiation temperature solution module restores the measurement data, and then uses the restored data to solve the radiation temperature using one or more solution methods; step 6, inputting one or more indication parameters once or multiple times, and a drawing module continuously draws the corresponding radiation temperature distribution diagram measured once or multiple times; step 7, a data analysis module performs data analysis.

[0034] The step 1 is based on a graphical user interface including but not limited to python, MATLAB and other software; the graphical user interface is provided with one or more functional areas, including but not limited to data preprocessing, phase solution, standard reference temperature solution, radiation temperature solution, drawing and data analysis, etc.; as a possible implementation method, the functional areas are respectively located on one or more panels, including but not limited to data preprocessing panel, phase solution panel, standard reference temperature solution panel, radiation temperature solution panel, drawing panel and data analysis panel, etc., each panel includes but not limited to an indication parameter input area, an interactive display area, one or more function buttons, etc.;

[0035] The indicated parameters in step 2 include but are not limited to sampling frequency, downsampling frequency, etc. As a possible implementation method, in order to facilitate interaction and improve data processing speed, one or more sampling frequency input edit boxes are set in the graphical user window. The frequency can be built into the underlying code. When downsampling is required, the sampling frequency can be equivalent to the downsampling frequency. The phase information solved in step 3 includes but is not limited to the number of rotations, angle, speed, etc. The standard reference temperature solution module in step 4 is relatively independent and can be operated after phase solution and before drawing and data analysis. As a possible implementation method, it is located after phase solution and can be visualized and display the standard reference temperature curve. The indicated parameters in step 5 include but are not limited to attenuation coefficients of different wavelengths; as a possible implementation method, attenuation plates need to be increased or decreased according to actual conditions in different temperature sections to achieve the response range of the photodetector, and attenuation coefficient edit boxes at different wavelengths can be set. The solution method of radiation temperature includes but is not limited to K value method, curve fitting method, etc.; as a possible implementation method, the K value method requires input including but not limited to a fitted K value curve or approximate value, and the curve fitting method requires input of a fitted voltage / voltage ratio-temperature calibration curve.

[0036] The indicating parameters in step 6 include but are not limited to the time value after the measurement starts, the number of revolutions, the blade number, etc.; the temperature distribution diagram includes a main diagram and a color bar showing the color scale; the main diagram of the single temperature distribution diagram drawn includes but is not limited to straight lines, curves, single or multiple scattered points, single or multiple scattered rectangles, single or multiple scattered triangles, etc.; the main diagram of the multiple temperature distribution diagram drawn includes but is not limited to rings, circles, rectangles, sectors, blades, etc. As a possible implementation method, input the time, the main diagram of the single temperature distribution diagram drawn is n scattered circles, and the color depth of the circle corresponds to the magnitude of the measured radiation temperature; input the number of revolutions, the main diagram of the multiple temperature distribution diagram drawn is a circular ring, and the radiation temperature measured at different times and phases is distributed on the ring; input the blade number, the drawing module separates the surface temperature of a single blade under the number of revolutions, and draws the surface temperature distribution diagram of the blade.

[0037] The data analysis in step 7 includes but is not limited to one or more of the following: (1) input the time, and display one or more temperature values ​​measured by the radiation pyrometer probe at that time; (2) input the number of turns and angle, and query one or more temperature values ​​measured by the radiation pyrometer probe under this condition; (3) input the number of turns, and query the temperature value measured by the thermocouple at a fixed position under the turn; (4) input the number of turns, and display the error between the temperature measured by the radiation pyrometer under the turn and the standard temperature; (5) input the number of turns, and display the maximum temperature of the turn and its position, and the position includes but is not limited to the phase, radial distance, blade number, etc.; (6) when the temperature of the test piece is stable within a certain number of turns, the radiation temperature and standard temperature at the same position under different numbers of turns are averaged respectively, and the error between the temperature measured by the radiation pyrometer and the standard temperature is displayed; (7) input the radial position coordinates, and display the circular distribution curve of the radiation temperature under the radius.

[0038] The main function of the graphical user interface is to realize the human-computer interaction between people and electronic devices such as computers. It is a tool for data transmission and interactive control between users and operating systems. The present invention allows users to personalize data processing, simplifies the test bench measurement data processing process, makes user operation more convenient, and error analysis more intuitive.

[0039] The embodiment of the present invention provides a method for interactively processing measurement data of a rotating temperature field simulation test bench and a graphical user interface, which is used to improve the convenience of comparing the measured temperature with the standard reference temperature and the intuitiveness of judging the working condition of the measured blade during the research and development stage of the radiation pyrometer. Figure 1-Figure 3 The present invention is explained with reference to the accompanying drawings and examples.

[0040] A method for interactively processing measurement data of a rotating temperature field simulation test bench, the flow chart of which is as follows Figure 1 As shown, the following steps are included:

[0041] Step L1, establishing a graphical user interface;

[0042] Step L2, input one or more indication parameters and load measurement data, and the data preprocessing module preprocesses the measurement data;

[0043] Step L3, the phase calculation module calculates the phase information;

[0044] Step L4, the standard reference temperature calculation module calculates the standard reference temperature;

[0045] Step L5, input one or more indicating parameters, the radiation temperature solution module restores the measured data, and then uses the restored data to solve the radiation temperature using one or more solution methods;

[0046] Step L6, input one or more indicating parameters once or multiple times, and the drawing module continuously draws the corresponding radiation temperature distribution diagram measured once or multiple times;

[0047] Step L7: the data analysis module performs data analysis.

[0048] The following is a detailed description of an embodiment in which a five-channel array probe uses a dual-wavelength colorimetric method to measure the surface temperature of a turbine blade. The reference standard temperature is the temperature measured by a thermocouple, which is located at an initial zero phase, and the high-speed acquisition frequency is 20 MHz.

[0049] In an embodiment of the present invention, step L1 is based on a graphical user interface including but not limited to python, MATLAB and other software; the graphical user interface sets one or more functional areas, including but not limited to data preprocessing, phase solution, standard reference temperature solution, radiation temperature solution, drawing and data analysis, etc.; as a possible implementation method, the functional areas are respectively located on one or more panels, including but not limited to data preprocessing panel, phase solution panel, standard reference temperature solution panel, radiation temperature solution panel, drawing panel and data analysis panel, etc., each panel includes but not limited to an indication parameter input area, an interactive display area, one or more function buttons, etc.;

[0050] In the embodiment of the present invention, the parameters indicated in step L2 include but are not limited to sampling frequency, downsampling frequency, etc. As an optional implementation, in order to facilitate interaction and improve data processing speed, one or more sampling frequency input edit boxes are set in the graphical user window. The frequency can be built into the underlying code. When downsampling is required, the sampling frequency can be equivalent to the downsampling frequency;

[0051] In the embodiment of the present invention, the phase information solved in step L3 includes but is not limited to the number of rotations, angle, speed, etc.;

[0052] In the embodiment of the present invention, the standard reference temperature solution module in step L4 is relatively independent and can be operated after phase solution and before drawing and data analysis. As an optional implementation, it is located after phase solution and can be visualized and display the standard reference temperature curve;

[0053] In the embodiment of the present invention, the parameters indicated in step L5 include but are not limited to attenuation coefficients at different wavelengths, etc.; as an optional implementation, attenuation plates need to be added or subtracted according to actual conditions in different temperature ranges to achieve the response range of the photodetector, and an edit box for attenuation coefficients at different wavelengths can be set. The calculation method of radiation temperature includes but is not limited to the K value method, curve fitting method, etc.; as an optional implementation, the K value method requires input including but not limited to a fitted K value curve or approximate value, and the curve fitting method requires input of a fitted voltage / voltage ratio-temperature calibration curve.

[0054] In an embodiment of the present invention, the indicating parameters in step L6 include but are not limited to the time value after the measurement starts, the number of revolutions, the blade number, etc.; the temperature distribution diagram includes a main diagram and a color bar showing the color scale; the main diagram of the single temperature distribution diagram drawn includes but is not limited to straight lines, curves, single or multiple scattered points, single or multiple scattered rectangles, single or multiple scattered triangles, etc.; the main diagram of the multiple temperature distribution diagram drawn includes but is not limited to rings, circles, rectangles, sectors, blades, etc. As an optional implementation, input the time, the main diagram of the single temperature distribution diagram drawn is n scattered circles, and the color depth of the circle corresponds to the magnitude of the measured radiation temperature; input the number of revolutions, the main diagram of the multiple temperature distribution diagram drawn is a circular ring, and the radiation temperature measured at different times and phases is distributed on the ring; input the blade number, the drawing module separates the surface temperature of a single blade under the number of revolutions, and draws the surface temperature distribution diagram of the blade.

[0055] In the embodiment of the present invention, the data analysis in step L7 includes but is not limited to one or more of the following:

[0056] (1) Enter a time and display one or more temperature values ​​measured by the radiation pyrometer probe at that time;

[0057] (2) Enter the number of turns and angles to query one or more temperature values ​​measured by the radiation pyrometer probe under these conditions;

[0058] (3) Enter the circle number and query the temperature value measured by the thermocouple at a fixed position under the circle;

[0059] (4) Enter the circle number, and the error between the temperature measured by the radiation pyrometer and the standard temperature in that circle will be displayed;

[0060] (5) Enter the circle number, and display the maximum temperature value and its position in the circle, including but not limited to phase, radial distance, blade number, etc.;

[0061] (6) When the temperature of the test piece is stable within a certain number of turns, the radiation temperature and standard temperature at the same position under different numbers of turns are averaged to display the error between the temperature measured by the radiation pyrometer and the standard temperature;

[0062] (7) Input the radial position coordinates to display the circular distribution curve of the radiation temperature at that radius.

[0063] Figure 2 A graphical user interface for reference is shown in FIG. Figure 3 The inter-module data transmission is a reference embodiment of the present invention, and the inter-module data transmission is described in detail below in conjunction with a graphical user interface.

[0064] The measurement data includes 3 channels of thermocouple data, 10 channels of photodetector data, and 2 channels of encoder data. Click one or more function buttons in sequence, and the S1 phase solution module will take out the 2 channels of encoder data, downsample it, and solve the phase information, including angle, number of turns, speed, etc. Click the function button under the thermocouple temperature solution panel, and the S2 standard reference temperature solution module will take out the 3 channels of thermocouple data, downsample it, and solve the standard reference temperature information, and draw a temperature curve. The S3 radiation temperature solution module includes the S3.1 K value method temperature solution module and the S3.2 fitting method temperature solution module. Enter the attenuation coefficients of the two wavelengths in the parameter input area of ​​the corresponding module under the radiation temperature solution panel, and click the corresponding function button.

[0065] If the K value method is selected to solve the radiation temperature, enter the K value in the "K value method" panel and click the corresponding function button. The S3.1 K value method temperature solution module will filter the restored voltage value, and combine the black body furnace calibration data and emissivity data to solve the temperature to obtain the radiation temperature data. Then enter the sampling time or number of turns in the parameter input area of ​​the drawing panel. The S4 drawing module will display the corresponding temperature distribution diagram in the drawing area, and the input channel number will display the temperature curve of the channel for one week. Click the corresponding function button to display the maximum value of the input number of temperature distribution and its position information, including temperature, number of channels and angle. Enter the time in the parameter input area of ​​the data analysis panel, click the corresponding function button, and the S5 data analysis module will display the temperature values ​​of the 5 channels at that time in the interactive display area below; enter the number of turns and angle, click the corresponding function button, and the 5 channel temperature values ​​at that angle and the thermocouple temperature indication at the zero phase in the circle can be displayed. Click the corresponding function button to display the error between the standard reference thermocouple temperature and the radiation temperature at the corresponding position.

[0066] If you choose the fitting method to solve the radiation temperature, perform the corresponding operation in the "Fitting Method" panel. The S3.2 fitting method temperature solving module continuously takes the zero-phase radiation voltage and corresponds it to the thermocouple temperature. After solving the temperature, you can select the built-in fitting function under the fitting method panel to obtain the calibration curve, or you can put the existing voltage ratio-temperature data file in the corresponding path to fit the voltage ratio temperature curve and display it. Enter the fitted parameters, click the corresponding function button, and the S3.2 fitting method temperature solving module solves the temperature according to the fitting method. The subsequent drawing and data analysis are consistent with the data transmission and operation of the K value method.

[0067] The contents not described in detail in the specification of the present invention belong to the prior art known to the professional and technical personnel in the field. It is pointed out here that the above description helps those skilled in the art to understand the invention, but does not limit the protection scope of the invention. Any equivalent replacement, modification and / or simplification of the above description without departing from the essence of the invention falls within the protection scope of the invention.

Claims

1. A method for interactively processing measurement data of a rotary temperature field simulation test bench, characterized in that: The following steps are involved: Step 1, establishing a graphical user interface for running the following modules: a data preprocessing module, a phase solution module, a standard reference temperature solution module, a radiation temperature solution module, a drawing module, and a data analysis module; Step 2, input one or more indication parameters and load measurement data, and the data preprocessing module preprocesses the measurement data; Step 3, the phase calculation module calculates the phase information; Step 4, the standard reference temperature calculation module calculates the standard reference temperature; Step 5, input one or more indicating parameters, the radiation temperature solution module restores the measured data, and then uses the restored data to solve the radiation temperature using one or more solution methods; Step 6, input one or more indicating parameters once or multiple times, and the drawing module continuously draws the radiation temperature distribution diagram corresponding to the single or multiple measurements; Step 7, the data analysis module performs data analysis; The indicating parameter in step 2 is the sampling frequency or the downsampling frequency, and the measurement data in step 2 is the measurement data of the temperature field simulation test bench of the aircraft engine turbine rotating blade, including one or more thermocouple data representing the standard reference temperature, multiple photoelectric detector data representing the radiation temperature, and multiple encoder data representing the phase information; The indicated parameters in step 5 include attenuation coefficients of different wavelengths. At different temperature ranges, the attenuation plate needs to be increased or decreased according to the actual situation to achieve the response range of the photodetector. The radiation temperature is calculated by the K value method or the curve fitting method. The K value method includes inputting a fitted K value curve or an approximate value. The curve fitting method includes inputting a fitted voltage / voltage ratio-temperature calibration curve. The indication parameters in step 6 include the time value after the measurement starts, the number of rotations and the blade number. The temperature distribution diagram includes a main diagram and a color bar showing color levels. The main diagram of a single temperature distribution diagram includes straight lines, curves, single or multiple scattered points, single or multiple scattered rectangles, and single or multiple scattered triangles. The main diagram of multiple temperature distribution diagrams includes rings, circles, rectangles, sectors, and blade shapes.

2. The method for interactively processing measurement data of a rotary temperature field simulation test bench according to claim 1, characterized in that: The step 1 includes using python software or MATLAB software to establish a graphical user interface including a data preprocessing panel, a phase solution panel, a standard reference temperature solution panel, a radiation temperature solution panel, a drawing panel and a data analysis panel, each panel having an indication parameter input area, an interactive display area and function buttons, the drawing panel including a drawing area, the radiation temperature solution panel including a K value method panel and a fitting method panel, and the K value method panel and the fitting method panel both have an indication parameter input area and function buttons.

3. The method for interactively processing measurement data of a rotary temperature field simulation test bench according to claim 1, characterized in that: The phase information calculated in step 3 includes the number of rotations, angle, and speed.

4. The method for interactively processing measurement data of a rotary temperature field simulation test bench according to claim 1, characterized in that: In step 4, the standard reference temperature is displayed as a standard reference temperature curve by visual processing.

5. The method for interactively processing measurement data of a rotary temperature field simulation test bench according to claim 1, characterized in that: The step 6 includes inputting the time, and the main figure of the single temperature distribution diagram drawn is n scattered circles, n is a positive integer, and the color depth of the circle corresponds to the measured radiation temperature; inputting the number of circles, and the main figure of the multiple temperature distribution circle diagram drawn is a circular ring, and the radiation temperature measured at different times and phases is distributed on the ring; inputting the blade number, the drawing module separates the surface temperature of a single blade under the number of circles, and draws the surface temperature distribution diagram of the blade.

6. The method for interactively processing measurement data of a rotary temperature field simulation test bench according to claim 1, characterized in that: The data analysis in step 7 includes one or more of the following: (1) Enter a time and display one or more temperature values ​​measured by the radiation pyrometer probe at that time; (2) Enter the number of turns and angles to query one or more temperature values ​​measured by the radiation pyrometer probe under these conditions; (3) Enter the circle number and query the temperature value measured by the thermocouple at a fixed position under the circle; (4) Enter the circle number, and the error between the temperature measured by the radiation pyrometer and the standard temperature in that circle will be displayed; (5) Enter the circle number, and display the maximum temperature value and its position in the circle, including but not limited to phase, radial distance, and blade number; (6) When the temperature of the test piece is stable within a certain number of turns, the radiation temperature and standard temperature at the same position under different numbers of turns are averaged to display the error between the temperature measured by the radiation pyrometer and the standard temperature; (7) Input the radial position coordinates to display the circular distribution curve of the radiation temperature at that radius.

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