The conflict of longevity of satellites service and limited life of Sterling coolers decides that coolers should work on the intermittent mode in space. As a result, detectors in satellite are commonly subjected to thousands of repeated thermal cycles from below 173℃ to room temperature (20℃), which brings new reliability problems. This paper introduced a new thermal cycle automatic system, detector was cooled by liquid N2, temperature range was 295K to 100K. Reliability of two types of detector was studied with this equipment. Resistance, signal and noise were measured and summarized before and after experiment. The results were analyzed and explained. It would be referenced for the fabrication of detectors.
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任仁,吴礼刚,王小坤,李向阳,朱三根,龚海梅.碲镉汞红外探测器高低温循环特性研究[J].激光与红外,2007,37(13):941~943 REN Ren, WU Li-gang, WANG Xiao-kun, LI Xiang-yang, ZHU San-gen, GONG Hai-mei. Study on the Thermal Cycle Characteristic of HgCdTe Detector[J]. LASER & INFRARED,2007,37(13):941~943