Infrared radiation measurement technique for low-temperature target in TV (thermal-vacuum) conditions

Xue Lian; Hua Nan; Jiaqi Liu; Xin Liu; Gang Meng

doi:10.1117/12.2285288

24 October 2017 Infrared radiation measurement technique for low-temperature target in TV (thermal-vacuum) conditions

Xue Lian, Hua Nan, Jiaqi Liu, Xin Liu, Gang Meng

Proceedings Volume 10462, AOPC 2017: Optical Sensing and Imaging Technology and Applications; 104623W (2017) https://doi.org/10.1117/12.2285288
Event: Applied Optics and Photonics China (AOPC2017), 2017, Beijing, China

Abstract

Aiming at the requirements of low-temperature measurement of spacecraft in thermal vacuum or thermal balance test, on the basis of the principle of infrared thermal measurement, the factors influencing the cool measurement of the infrared system were detailedly calculated and analyzed, from the targeted radiation, background radiation and radiation sensitivity of the detector infrared by the infrared system. It was found that the stray radiation of the optical system was the key link to restrict the cool measurement capability of the current hot test. On this result, a set of infrared thermal imaging system was designed, which could be used directly in the vacuum thermal test environment. In the optical system, the temperature could be cooled into -60°C. The blackbody was used to radiate and calibrate the system. As the experimental result showed, the system could be used to realize the infrared radiation measurement of the 150K cool target, which filled the blank of the technical field in china.

Citation Download Citation

Xue Lian, Hua Nan, Jiaqi Liu, Xin Liu, and Gang Meng "Infrared radiation measurement technique for low-temperature target in TV (thermal-vacuum) conditions", Proc. SPIE 10462, AOPC 2017: Optical Sensing and Imaging Technology and Applications, 104623W (24 October 2017); https://doi.org/10.1117/12.2285288

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