Life test research on the space-borne infrared detector for synchronization monitoring atmospheric corrector

Pingping Yao; Xiangjing Wang; Zhuoran Li; Gai Wang; Mengfan Li; Yadong Hu; Zhenwei Qiu

doi:10.1117/12.3039349

26 September 2024 Life test research on the space-borne infrared detector for synchronization monitoring atmospheric corrector

Pingping Yao, Xiangjing Wang, Zhuoran Li, Gai Wang, Mengfan Li, Yadong Hu, Zhenwei Qiu

Author Affiliations +

Proceedings Volume 13282, Second Advanced Imaging and Information Processing Conference (AIIP 2024); 1328202 (2024) https://doi.org/10.1117/12.3039349
Event: Second Advanced Imaging and Information Processing Conference (AIIP 2024), 2024, Xining, China

Abstract

The InGaAs infrared detector, as the core component of photoelectric conversion in the Synchronization Monitoring Atmospheric Corrector (SMAC), is responsible for measuring short-wave infrared spectral and polarization information. Among them, the service life of the thermoelectric cooler (TEC) poses a bottleneck for the overall lifespan of the infrared detector, and its reliability directly affects the normal operation of the detector. A thorough analysis is conducted for the working mechanism of the infrared detector utilized by SMAC and the failure mechanism of the TEC, and the lifetime characteristic of the product is comprehensively evaluated and analyzed through lifespan testing. To minimize time costs, an innovative accelerated lifetime test method is proposed, which utilizes temperature change rate as the accelerated stress. A lifetime test system is developed. Meanwhile, the dark current, relative spectral response, and cooling current of the infrared detector have been measured before and after the lifetime test based on the segmented uniform illumination light source. The experimental results reveal that after a cumulative lifetime test of approximately 120 days, the infrared detector underwent approximately 170,000 temperature cycles. The maximum delta value in the relative spectral responsivity of the infrared detector pre and post the life test is -1.86%, and the maximum increase in the TEC refrigeration drive current is 8.6%. The service life and performance changes of the detector could satisfy the requirements of space payloads. Moreover, the lifetime test system significantly improves test efficiency and exhibits excellent stability and scalability, fully capable of meeting the needs of lifetime tests under different temperature stress levels.

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

Citation Download Citation

Pingping Yao, Xiangjing Wang, Zhuoran Li, Gai Wang, Mengfan Li, Yadong Hu, and Zhenwei Qiu "Life test research on the space-borne infrared detector for synchronization monitoring atmospheric corrector", Proc. SPIE 13282, Second Advanced Imaging and Information Processing Conference (AIIP 2024), 1328202 (26 September 2024); https://doi.org/10.1117/12.3039349

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KEYWORDS

Sensors

Infrared detectors

Accelerated life testing

Signal detection

Atmospheric monitoring

Atmospheric sensing

Environmental monitoring

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