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Proceedings Paper

Application of high precision temperature control technology in infrared testing
Author(s): Haiyuan Cao; Yong Cheng; Mengzhen Zhu; Hua Chu; Wei Li
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Paper Abstract

In allusion to the demand of infrared system test, the principle of Infrared target simulator and the function of the temperature control are presented. The key technology of High precision temperature control is discussed, which include temperature gathering, PID control and power drive. The design scheme of temperature gathering is put forward. In order to reduce the measure error, discontinuously current and four-wire connection for the platinum thermal resistance are adopted. A 24-bits AD chip is used to improve the acquisition precision. Fuzzy PID controller is designed because of the large time constant and continuous disturbance of the environment temperature, which result in little overshoot, rapid response, high steady-state accuracy. Double power operational amplifiers are used to drive the TEC. Experiments show that the key performances such as temperature control precision and response speed meet the requirements.

Paper Details

Date Published: 15 November 2017
PDF: 8 pages
Proc. SPIE 10605, LIDAR Imaging Detection and Target Recognition 2017, 106052Q (15 November 2017); doi: 10.1117/12.2294028
Show Author Affiliations
Haiyuan Cao, Wuhan Mechanical College (China)
Yong Cheng, Wuhan Mechanical College (China)
Mengzhen Zhu, Wuhan Mechanical College (China)
Hua Chu, Wuhan Mechanical College (China)
Wei Li, Wuhan Mechanical College (China)

Published in SPIE Proceedings Vol. 10605:
LIDAR Imaging Detection and Target Recognition 2017
Yueguang Lv; Weimin Bao; Weibiao Chen; Zelin Shi; Jianzhong Su; Jindong Fei; Wei Gong; Shensheng Han; Weiqi Jin; Jian Yang, Editor(s)

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