Research on high-precision temperature measurement and control technology for space mechanical cryogenic system

Mingshuo Che; Chao Li; Huan Liu

doi:10.1117/12.3037215

4 December 2024 Research on high-precision temperature measurement and control technology for space mechanical cryogenic system

Mingshuo Che, Chao Li, Huan Liu

Author Affiliations +

Proceedings Volume 13283, Conference on Spectral Technology and Applications (CSTA 2024); 1328348 (2024) https://doi.org/10.1117/12.3037215
Event: Conference on Spectral Technology and Applications (CSTA 2024), 2024, Dalian, China

Abstract

Space mechanical cryogenic systems are widely used in infrared optical remote sensing due to their large cooling capacity and wide cooling temperature range. They provide reliable cold sources for core components such as infrared detectors and other optoelectronic devices, ensuring the stable operation of infrared sensors. As the infrared remote sensing spatial resolution, radiation resolution and other indicators continue to improve, the platform resource requirements are becoming increasingly stringent. The high-precision temperature measurement and control technology under complex working conditions is gradually becoming the key technology of space mechanical cryogenic systems and is increasingly receiving attention. This paper analyzes the characteristics and related influencing factors of space mechanical refrigeration tasks, and achieves a high-precision temperature measurement and control of mK units by adopting high-stability constant current source, ultra-high precision temperature signal acquisition, and improved adaptive PID control algorithm, and gets in-orbit verification.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Mingshuo Che, Chao Li, and Huan Liu "Research on high-precision temperature measurement and control technology for space mechanical cryogenic system", Proc. SPIE 13283, Conference on Spectral Technology and Applications (CSTA 2024), 1328348 (4 December 2024); https://doi.org/10.1117/12.3037215

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KEYWORDS

Temperature metrology

Temperature control

Infrared radiation

Infrared sensors

Control systems

Cryocoolers

Aerospace engineering

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