Calibration source radiation parameter quantitative calibration and quantity value transmission system in space environment
A radiation parameter and space environment technology, applied in the field of calibration and calibration, and infrared radiation measurement, can solve problems such as few calibration points, narrow calibration temperature range, and inaccurate measurement values, so as to achieve accurate measurement values, ensure accuracy, The effect of broad application prospects
Active Publication Date: 2020-09-29
BEIJING ZHENXING METROLOGY & TEST INST
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Problems solved by technology
[0008] The traditional on-orbit radiation parameter calibration has few calibration points, generally one or two-point calibration, and the calibration temperature range is narrow, which cannot meet the current infrared load’s on-orbit radiation parameter calibration and calibration requirements. A new high-performance calibration source is needed. , if the calibration source is not traceable and transmitted, its value cannot be guaranteed to be accurate, and high-precision on-orbit calibration cannot be achieved. Therefore, in order to ensure the accurate traceability of the calibration source, high-precision traceability and target
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[0042] Below in conjunction with accompanying drawing, preferred embodiment of the present invention will be further described:
[0043] The composition principle diagram of the quantitative calibration and value transfer system in the space environment of the present invention is attached. figure 1 As shown, it includes space environment simulation cabin 1, calibration source 2, vacuum translation platform and turntable 3, optical path folding mirror 4, vacuum standard radiation source 5, measurement window 6, radiometer for value transmission 7, high-precision power supply system, etc. , wherein the radiometer 7 for value transmission includes an infrared spectroradiometer and an infrared integrating radiometer.
[0044] The vacuum standard radiation source 5 is a standard radiation source, located on the wall of the space environment simulation cabin 1, and connected to the space environment simulation cabin 1 through a sealing flange.
[0045] The calibration source 2 is ...
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Abstract
The invention discloses a calibration source radiation parameter quantitative calibration and quantity value transmission system in a space environment. The system comprises a space environment simulation cabin (1), a calibration source (2), a light path turning mirror (4), a vacuum standard radiation source (5) and a radiometer (7) for quantity value transmission. The optical path turning mirror(4) reflects infrared radiation light emitted by the calibration source (2) or the vacuum standard radiation source (5) into the radiometer (7) for quantity value transmission, the radiometer (7) measures radiation quantity values of the two, and the radiation quantity values of the vacuum standard radiation source and the calibration source can be considered to be equal by adjusting signals of the two. In the invention, on-orbit multi-point, high-precision, wide-temperature-range and rapid magnitude tracing and transmission of the calibration source for on-orbit calibration can be realized, and magnitude accuracy of the calibration source for an infrared load is ensured.
Description
technical field [0001] The invention belongs to the technical field of infrared radiation measurement, calibration and calibration, and relates to a quantitative calibration and value transfer system of radiation parameters of a calibration source in a space environment. Background technique [0002] At present, with the development of technology, the application of infrared imagers has been extended to near space and outer space. These systems include space infrared observation system, near space detection system, and spaceborne infrared remote sensing system. With the technical and tactical performance of these infrared load With the gradual increase in requirements, high-precision quantitative detection has become an inevitable trend for the further development of infrared loads. [0003] Radiation parameter calibration is the basis and prerequisite for quantitative detection of infrared loads. Through radiation parameter calibration, the radiation value of the target can...
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Login to View More IPC IPC(8): G01J5/00
CPCG01J5/00G01J5/80
Inventor 张玉国孙红胜张鑫吴柯萱孙广尉
Owner BEIJING ZHENXING METROLOGY & TEST INST