Theory of realizing dual-band thermal imaging with pyroelectric FPA detector

Weiqi Jin; Guangrong Liu; Yuqing He; Hong Guo; Xuegang Su; Zhiyun Gao

doi:10.1117/12.385571

9 May 2000 Theory of realizing dual-band thermal imaging with pyroelectric FPA detector

Weiqi Jin, Guangrong Liu, Yuqing He, Hong Guo, Xuegang Su, Zhiyun Gao

Proceedings Volume 4077, International Conference on Sensors and Control Techniques (ICSC 2000); (2000) https://doi.org/10.1117/12.385571
Event: International Conference on Sensors and Control Techniques (ICSC2000), 2000, Wuhan, China

Abstract

The theory of realizing dual band thermal images by pyroelectric FPA detector with 4 states of chopper modulation is proposed. The rules governing the variations of signal responses to temperature rise from the scenery incident emission under 4 states of chopper modulation and successive signal processing in the detector are established. Analysis of the digital analog shows that the double bands (3 - 5 micrometers and 8 - 14 micrometers ) information of the scenery emission may be totally or partially separated. By this technology, a light, low cost, double band thermal imaging system with single detector could be realized.

Citation Download Citation

Weiqi Jin, Guangrong Liu, Yuqing He, Hong Guo, Xuegang Su, and Zhiyun Gao "Theory of realizing dual-band thermal imaging with pyroelectric FPA detector", Proc. SPIE 4077, International Conference on Sensors and Control Techniques (ICSC 2000), (9 May 2000); https://doi.org/10.1117/12.385571

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