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Proceedings Paper

Dual channel and fast response optical fiber temperature detection system based on Raman scattering
Author(s): Jiacheng Hu; Zeguo Liu; Zijian Wang; Guoyang Li
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Paper Abstract

In order to monitor the early fire situation caused by coal spontaneous combustion or cable aging, cable heated, cable overcurrent and other reasons, a dual channel and fast response temperature detection system is designed based on the Raman scattering principle in which anti-stokes signal in back Raman scattering is sensitive to temperature. The performance of the temperature detection system is obtained through experiments. The experimental data shows that the maximum error of temperature measurement is 0.7°C, the stability is 1°C in 30 minutes when both channels carry 2.5km sensing fiber, single channel response time is less than 17s and position-calculated error is less than 2m. This system would have a good application prospect in distributed fire detection and early warning under mine.

Paper Details

Date Published: 24 October 2017
PDF: 6 pages
Proc. SPIE 10462, AOPC 2017: Optical Sensing and Imaging Technology and Applications, 104620M (24 October 2017); doi: 10.1117/12.2282511
Show Author Affiliations
Jiacheng Hu, China Jiliang Univ. (China)
Zeguo Liu, China Jiliang Univ. (China)
Zijian Wang, China Jiliang Univ. (China)
Guoyang Li, Shanghai Jing Guang Photoelectric Technology Co., Ltd. (China)

Published in SPIE Proceedings Vol. 10462:
AOPC 2017: Optical Sensing and Imaging Technology and Applications
Yadong Jiang; Haimei Gong; Weibiao Chen; Jin Li, Editor(s)

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