Blackbody performance automatic test device and test method

Abstract

The invention provides a blackbody performance automatic test device and test method, the blackbody performance automatic test device comprises a test board, a test instrument, a moving mechanism, a control unit and an automatic test system, the test board comprises a plurality of liftable test stations arranged side by side, and the test stations are used for placing blackbody radiation sources to be tested; the testing instrument is located on the moving mechanism, and the moving mechanism is used for achieving three-dimensional movement of the testing instrument in the space; the control unit is respectively connected with the plurality of liftable test stations and the moving mechanism so as to control the movement of the liftable test stations and the moving mechanism; the automatic test system is respectively connected with the control unit and the test instrument so as to control the test instrument to automatically test the tested blackbody radiation source. Through the control unit and the automatic test system, the omnibearing automatic test of the tested black body is realized, the work of repeatedly moving a test instrument by a worker is reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of automatic testing platforms, and in particular to a blackbody performance automatic testing device and testing method. Background Art

[0002] With the advancement of science and technology, infrared imaging technology is increasingly being used. Whether in military or civilian applications, it provides significant benefits for both production and daily life. Blackbodies, as standard calibration sources for infrared radiation, can provide radiation calibration for infrared detection systems. As infrared payload performance requirements increase, so too do the technical requirements for blackbodies.

[0003] Before entering the market, blackbodies need to undergo comprehensive radiation performance index testing, such as key indicators such as radiation surface uniformity, stability, and heating rate. The current performance testing method for blackbodies is mainly to manually use corresponding dedicated test instruments to test the indicators one by one. This testing method is difficult to implement and the entire process is relatively complicated. In particular, when different personnel conduct multiple repeated tests, the repeatability test error introduced by human error is large. At the same time, when testing indicators one by one, the test data is relatively scattered, and additional steps such as data collation, integration, and output are required. In addition, with the progress of society and the increase in labor costs, low work efficiency of personnel, and the increase in testing costs for serialized blackbody products, companies are increasingly in need of automated testing and measurement of blackbody performance. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art.

[0005] According to one aspect of the present invention, a blackbody performance automatic testing device is provided, which includes: a test bench, a test instrument, a mobile mechanism, a control unit and an automatic testing system, the test bench includes a plurality of liftable test stations arranged side by side, the test stations are used to place the blackbody radiation source to be tested; the test instrument is located on the mobile mechanism, and the mobile mechanism is used to realize the three-dimensional movement of the test instrument in space; the control unit is respectively connected to the plurality of liftable test stations and the mobile mechanism to control the movement of the liftable test stations and the mobile mechanism; the automatic testing system is respectively connected to the control unit and the test instrument to control the test instrument to automatically test the blackbody radiation source to be tested.

[0006] According to another aspect of the present invention, a method for automatically testing blackbody performance is provided. The method uses the automatic blackbody performance testing device as described above to automatically test blackbody performance.

[0007] Furthermore, the automatic blackbody performance testing method includes the following steps: obtaining a blackbody performance automatic testing device and determining that the automatic testing device is in normal operating state; obtaining a blackbody radiation source to be tested; placing the blackbody radiation source to be tested on a testing station; determining the type of test data required for the blackbody radiation source to be tested and the corresponding test instrument, installing the test instrument on a mobile mechanism, and connecting it to an automatic testing system; connecting a control unit to the testing station and the mobile mechanism; planning and setting the test points of the blackbody radiation source to be tested through the automatic testing system, and saving the setting parameters; running the automatic testing system and the control unit so that the test instrument performs automatic testing on the blackbody to be tested according to the planned test process and stores the test data.

[0008] The technical solution of the present invention provides an automatic blackbody performance testing device and testing method. The automatic blackbody performance testing device controls a control unit to control a liftable test station to achieve the raising and lowering of the blackbody radiation source under test, and simultaneously controls a moving mechanism to achieve three-dimensional movement of the test instrument in space. The automatic testing system automatically collects and processes test data. The present application realizes all-round automatic testing of the blackbody under test through the control unit and the automatic testing system, reducing the work of workers repeatedly moving the test instrument and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The accompanying drawings are included to provide a further understanding of the embodiments of the present invention, constitute a part of the specification, illustrate the embodiments of the present invention, and together with the description, explain the principles of the present invention. Obviously, the drawings described below are only some embodiments of the present invention, and those skilled in the art can derive other drawings based on these drawings without inventive effort.

[0010] Figure 1 A top view of a blackbody performance automatic testing device provided according to a specific embodiment of the present invention is shown;

[0011] Figure 2 It shows a left view of a blackbody performance automatic testing device provided according to a specific embodiment of the present invention;

[0012] Figure 3 A schematic diagram of a user interface of an automatic testing system provided according to a specific embodiment of the present invention is shown;

[0013] Figure 4 A schematic flow chart of a method for automatically testing blackbody performance according to a specific embodiment of the present invention is shown.

[0014] The above drawings include the following reference numerals:

[0015] 1. Test station; 11. Test platform; 12. First lifting device; 2. Test instrument; 3. Moving mechanism; 31. Moving platform; 32. First moving guide rail; 33. Second moving guide rail; 34. Slider; 35. Fixed platform; 36. Second lifting device; 4. Control unit; 5. Automatic test system; 6. System rack. DETAILED DESCRIPTION

[0016] It should be noted that, in the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present invention and its application or use. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0017] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0018] Unless otherwise specifically stated, the relative arrangement of the parts and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to actual proportional relationships. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments can have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, and therefore, once an item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0019] like Figure 1 and Figure 2 As shown, according to a specific embodiment of the present invention, a blackbody performance automatic testing device is provided, which includes: a test bench, a testing instrument 2, a moving mechanism 3, a control unit 4 and an automatic testing system 5.

[0020] The test bench includes a plurality of liftable test stations 1 arranged side by side, and the test stations 1 are used to place the blackbody radiation source to be tested;

[0021] The testing instrument 2 is located on a moving mechanism 3, and the moving mechanism 3 is used to realize the three-dimensional movement of the testing instrument 2 in space;

[0022] The control unit 4 is connected to the plurality of liftable test stations 1 and the moving mechanism 3 respectively to control the movement of the liftable test stations 1 and the moving mechanism 3;

[0023] The automatic testing system 5 is connected to the control unit 4 and the testing instrument 2 respectively, so as to control the testing instrument to automatically test the blackbody radiation source under test.

[0024] This configuration provides an automatic blackbody performance testing device. This device controls a liftable test station 1 via a control unit 4 to raise and lower a blackbody radiation source under test, while simultaneously controlling a moving mechanism 3 to move the test instrument three-dimensionally. The device also automatically collects and processes test data via an automatic test system 5. This application utilizes the control unit 4 and the automatic test system 5 to achieve all-around automatic testing of the blackbody under test, reducing the need for workers to repeatedly move the test instrument and improving work efficiency.

[0025] As a specific embodiment of the present invention, the number of test stations 1 can be adjusted as needed. For example, two test stations can be set up, each of which places a blackbody radiation source to be tested. When testing one of the blackbody radiation sources to be tested, another blackbody radiation source to be tested can be installed, which reduces the stop time during the test and increases the test efficiency.

[0026] Furthermore, the configurable test station 1 includes a test platform 11 and a first lifting device 12. The blackbody radiation source to be measured is placed on the test platform 11; the first lifting device 12 is connected to the test platform 11 and is used to control the lifting of the test platform 11. In the present invention, the lifting of the test platform 11 is adjusted by the first lifting device 12, which can facilitate the installation and positioning of the blackbody to be measured.

[0027] As a specific embodiment of the present invention, to facilitate the fixation and accurate positioning of the blackbody radiation source under test on the test platform 11, the test platform 11 may be configured with an adjustable fixture and a positioning device to respectively achieve the fixation and positioning of the blackbody radiation source under test on the test platform 11. In this embodiment, a standardized quick-release fixture may be used to clamp the blackbody radiation source under test.

[0028] As another specific embodiment of the present invention, the configurable test station 1 also includes a blackbody controller and a power supply. The power supply provides power to the blackbody controller. The blackbody controller is connected to the blackbody radiation source to be tested to control the blackbody radiation source during testing.

[0029] Furthermore, in order to realize the three-dimensional movement of the test instrument in space, the movable mechanism 3 can be configured to include a movable platform 31, a first movable guide rail 32, a second movable guide rail 33, a slider 34, a fixed platform 35, a second lifting device 36 and a movable controller. The test instrument is located on the movable platform 31, and the movable platform 31 slides on the first movable guide rail 32 to adjust the distance between the test instrument and the blackbody radiation source to be measured; the second movable guide rail 33 is located on the fixed platform 35, and the first movable guide rail 32 is movably set on the second movable guide rail 33 through the slider 34, and the first movable guide rail 32 and the second movable guide rail 33 are vertically arranged in a horizontal plane; the second lifting device 36 is connected to the fixed platform 35 to realize the lifting of the fixed platform 35; the movable controller is respectively connected to the movable platform 31, the slider 34 and the second lifting device 36 to provide movement control.

[0030] In the present invention, the configuration of the aforementioned moving mechanism 3 enables the test instrument to be moved horizontally and vertically. The moving platform 31 moves along the first moving rail 32 to adjust the distance between the test instrument and the blackbody radiation source being measured, thereby achieving focus on the test instrument. The moving platform 31 moves along the second moving rail 33 to facilitate position switching between different test stations 1.

[0031] As a specific embodiment of the present invention, the mobile controller may be configured to adopt a screw-turbine rotating pair to achieve the vertical ascent and descent and horizontal movement of the test instrument.

[0032] As another specific embodiment of the present invention, the control unit 4 may be connected to a plurality of first lifting devices 12 and a mobile controller respectively to realize the lifting of the test platform 11 and the lifting and horizontal movement of the mobile platform 31 .

[0033] As another specific embodiment of the present invention, the configurable mobile platform 31 has an adjustable fixture and a positioning device for achieving positioning and installation of different test instruments.

[0034] Furthermore, the test instruments primarily refer to specialized testing tools used to test blackbody performance, and may include medium-wavelength thermal imagers, long-wavelength thermal imagers, and radiometers. Each test instrument is equipped with a separate fixture and mounted on the mobile platform 31. Standardized interfaces are used to enable rapid switching between test instruments, meeting multi-parameter testing requirements.

[0035] Furthermore, the control unit 4 can be configured to include a main controller PLC, a motion drive module, and extended I / O input and output. The PLC controls the motion drive module to output drive instructions to achieve the lifting and lowering of the test platform 11 and the lifting and horizontal movement of the mobile platform 31 where the test instrument is located.

[0036] As a specific embodiment of the present invention, the control unit 4 can be operated manually or automatically, and can also communicate with the automatic test system 5 through a communication interface to perform test point position setting, trajectory control and status monitoring.

[0037] Furthermore, the configurable automatic test system 5 includes a computer, a data acquisition card and a communication card, which can realize the collection, processing and transmission of test data.

[0038] As a specific embodiment of the present invention, a control software is loaded on the computer, which has the functions of selecting the test point location, planning the test point trajectory, collecting test data, analyzing and storing it, and printing it out. Figure 3 As shown in the figure, a user interface diagram of an automatic testing system is given.

[0039] The automatic blackbody performance testing device of the present invention provides two test stations 1 on a test bench. Each station 1 has a positioning device that allows two blackbody radiation sources to be placed on the test bench simultaneously. A mobile platform 31 can simultaneously accommodate two or more test instrument fixtures, each with a consistent interface, allowing for rapid switching between test instruments based on the desired performance.

[0040] The present invention integrates test instruments, consolidates data from various instruments, and performs automated testing of blackbody indicators, ensuring product accuracy and stability. The test instruments on the mobile platform 31 simply need to be connected to the automatic test system 5, and the control unit 4 is connected to the automatic test system 5. This allows for comprehensive automatic testing of the blackbody being tested in a short period of time. The entire testing process is simple and convenient, reducing the need for workers to repeatedly move the test instruments and improving work efficiency.

[0041] According to another aspect of the present invention, a method for automatically testing blackbody performance is provided. The method uses the above-mentioned automatic blackbody performance testing device to automatically test blackbody performance.

[0042] Furthermore, if Figure 4 As shown, the blackbody performance automatic testing method includes the following steps:

[0043] (1) Obtaining a blackbody performance automatic test device and confirming that the automatic test device is in normal operating state;

[0044] (2) Obtain the blackbody radiation source to be measured;

[0045] (3) Place the blackbody radiation source to be measured on the test station;

[0046] (4) Determine the type of test data and the corresponding test instrument required for the blackbody radiation source to be tested, install the test instrument on the mobile mechanism, and connect it to the automatic test system;

[0047] (5) Connecting the control unit to the test station and the moving mechanism;

[0048] (6) Plan and set the test points of the blackbody radiation source to be measured through the automatic test system and save the setting parameters;

[0049] (7) Run the automatic test system and control unit to enable the test instrument to perform automatic testing on the blackbody under test according to the planned test process and store the test data.

[0050] In the testing method of the present invention, the automatic testing system can quickly record and analyze the performance indicators of the tested blackbody, performing comprehensive automatic testing. The entire workflow is very simple and convenient, the test data obtained is relatively accurate, the test difficulty is relatively low, and the efficiency of the testing process is improved. The use of the automatic testing system can also perform automated testing of blackbodies, which can increase work efficiency by more than 2 times compared to the previous method, greatly improving practical effects.

[0051] In addition, the test data can be uniformly organized in the automatic test system, which is conducive to the later test data analysis.

[0052] In order to have a further understanding of the present invention, the following Figures 1 to 4 The blackbody performance automatic testing device and testing method of the present invention are described in detail.

[0053] like Figures 1 to 4 As shown, according to a specific embodiment of the present invention, a blackbody performance automatic testing device is provided, which includes: a test bench, a test instrument, a moving mechanism 3, a control unit 4, an automatic testing system 5 and a system rack 6.

[0054] The test bench includes two side-by-side, elevating test stations 1, capable of holding two blackbody devices for simultaneous testing. Each test station 1 includes a test platform 11, a first elevating mechanism 12, a blackbody controller, and a power supply. Each test platform 11 can be independently raised and lowered by its corresponding first elevating mechanism 12. The test platforms 11 measure 500 mm by 500 mm. The blackbody controller, located below the test platform 11, controls the blackbody radiation source during testing.

[0055] The mobile mechanism 3 includes a mobile platform 31, a first mobile rail 32, a second mobile rail 33, a slider 34, a fixed platform 35, a second lifting device 36, and a mobile controller. Multiple test instruments and the automatic test system 5 are located on the mobile platform 31. The mobile platform 31 slides on the first mobile rail 32 to adjust the distance between the test instruments and the blackbody radiation source under test. The second mobile rail 33 is located on the fixed platform 35. The first mobile rail 32 is movably mounted on the second mobile rail 33 via a slider 34 to enable position switching between two test stations 1.

[0056] The mobile controller is driven by a screw-turbine rotating pair to control the mobile platform 31, the slider 34 and the second lifting device 36 to achieve vertical ascent and descent and horizontal movement.

[0057] The fixed platform 35 is located on the system rack 6, and the control unit 4 is mounted on the side of the system rack 6. The control unit 4 uses an electronic control solution based on a PLC as the main controller. The control unit 4's operation interface features manual adjustment buttons, indicator lights, and a real-time operating status display, enabling both inching and automatic operation of the test instrument.

[0058] The automatic test system 5 and the test instrument are placed on the mobile platform 31. The automatic test system 5 includes a computer, a data acquisition card and a communication card. The computer is loaded with control software, which has functions such as test point location selection, test point trajectory planning, test data acquisition, analysis storage and print output.

[0059] The blackbody performance automatic testing method of the present invention specifically comprises the following steps:

[0060] Step 1: Obtain the automatic test device, connect it to the power supply, turn on the control unit 4 to check the status of the device, and confirm that the device is in normal operation;

[0061] Step 2: Obtain the blackbody to be measured;

[0062] Step 3: Place the blackbody radiation source to be tested on the corresponding test station 1; connect the blackbody to be tested to the blackbody controller, and connect the blackbody controller to the power supply;

[0063] Step 4: Determine the type of test data required for the blackbody being tested and the corresponding test instrument, install one or more test instruments on the mobile platform 31, and connect them to the automatic test system 5;

[0064] Step 5: Connect the control unit 4 to the first lifting device 12 and the mobile controller;

[0065] Step 6: Use the control software of the automatic test system 5 to determine whether the test instrument is correctly connected to the automatic test system 5 and whether the test can be performed normally; plan and set the blackbody test points to be tested through the control software and save the set parameters;

[0066] Step 7: Run the automatic test system 5 and the control unit 4 to enable the test instrument to perform automatic testing on the blackbody under test according to the planned test process. During the process, the test data will be stored uniformly and can be observed on the visual human-computer interaction interface.

[0067] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0068] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0069] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A blackbody performance automatic testing device, characterized in that: The blackbody performance automatic testing device comprises: a testing platform, a testing instrument (2), a moving mechanism (3), a control unit (4) and an automatic testing system (5). The test bench comprises a plurality of liftable test stations (1) arranged side by side, wherein the test stations (1) are used to place a blackbody radiation source to be tested; The testing instrument (2) is located on a moving mechanism (3), and the moving mechanism (3) is used to realize the three-dimensional movement of the testing instrument (2) in space; The control unit (4) is respectively connected to the plurality of liftable test stations (1) and the moving mechanism (3) to control the movement of the liftable test stations (1) and the moving mechanism (3); The automatic test system (5) is connected to the control unit (4) and the test instrument (2) respectively to control the test instrument to automatically test the black body radiation source to be tested.

2. The automatic blackbody performance testing device according to claim 1, characterized in that: The test station (1) comprises a test platform (11) and a first lifting device (12). A blackbody radiation source to be tested is placed on the test platform (11). The first lifting device (12) is connected to the test platform (11) and a control unit (4) respectively, and is used to control the lifting of the test platform (11).

3. The automatic blackbody performance testing device according to claim 2, characterized in that: The test platform (11) is provided with an adjustable fixture and a positioning device, which respectively realize the fixation and positioning of the black body radiation source to be measured on the test platform (11).

4. The automatic blackbody performance testing device according to claim 2, characterized in that: The test station (1) also includes a blackbody controller and a power supply. The power supply provides power to the blackbody controller. The blackbody controller is connected to the blackbody radiation source to be tested so as to control the blackbody radiation source during the test.

5. The automatic blackbody performance testing device according to claim 1, characterized in that: The mobile mechanism (3) comprises a mobile platform (31), a first mobile guide rail (32), a second mobile guide rail (33), a slider (34), a fixed platform (35), a second lifting device (36) and a mobile controller. The test instrument is located on the mobile platform (31), and the mobile platform (31) slides on the first mobile guide rail (32) to adjust the distance between the test instrument and the black body radiation source to be measured; the second mobile guide rail (33) is located on the fixed platform (35), and the first mobile guide rail (32) is movably arranged on the second mobile guide rail (33) through the slider (34), and the first mobile guide rail (32) and the second mobile guide rail (33) are vertically arranged in a horizontal plane; the second lifting device (36) is connected to the fixed platform (35) to realize the lifting of the fixed platform (35); and the mobile controller is respectively connected to the mobile platform (31), the slider (34), the second lifting device (36) and the control unit (4) to provide movement control.

6. The automatic blackbody performance testing device according to claim 5, characterized in that: The mobile platform (31) has an adjustable fixture and a positioning device for realizing the positioning and installation of different test instruments.

7. The automatic blackbody performance testing device according to any one of claims 1 to 6, characterized in that: The control unit (4) includes a main controller PLC, a motion drive module and extended I / O input and output.

8. The automatic blackbody performance testing device according to any one of claims 1 to 7, characterized in that: The automatic test system (5) comprises a computer, a data acquisition card and a communication card, and can realize the acquisition, processing and transmission of test data.

9. A method for automatically testing blackbody performance, characterized in that: The method uses the blackbody performance automatic testing device according to any one of claims 1 to 8 to perform automatic testing of blackbody performance.

10. The automatic blackbody performance testing method according to claim 9, characterized in that: The blackbody performance automatic testing method comprises the following steps: Obtain a blackbody performance automatic test device and confirm that the automatic test device is in normal operation; Obtain the blackbody radiation source to be measured; Place the blackbody radiation source to be tested on the test station; Determine the type of test data and corresponding test instrument required for the blackbody radiation source to be tested, install the test instrument on the mobile mechanism, and connect it to the automatic test system; Connecting the control unit to the test station and the moving mechanism; Plan and set the test points of the blackbody radiation source to be tested through the automatic test system and save the setting parameters; Run the automatic test system and control unit to enable the test instrument to perform automatic testing on the blackbody under test according to the planned test process and store the test data.

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