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Proceedings Paper

Study of quasi-distributed optical fiber methane sensors based on laser absorption spectrometry
Author(s): Weihua Gong; Yubin Wei; Yanfang Li; Zhaowei Wang; Tingting Zhang; Jun Chang; Kenneth T. V. Grattan; Tongyu Liu
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Paper Abstract

The coal industry plays an important role in the economic development of China. With the increase of coal mining year by year, coal mine accidents caused by gas explosion also occur frequently, which poses a serious threat to the life safety of absenteeism and national property safety. Therefore, high-precision methane fiber sensor is of great significance to ensure coal mine safety. This paper mainly introduces two kinds of quasi-distributed gas optical fiber sensing systems based on laser absorption spectroscopy. The gas fiber optic sensor based on absorption spectrum has high measurement accuracy, fast response and long service life. One is quasi-distributed optical fiber sensing system based on spatial division multiplexing (SDM) technology and the other is quasi-distributed optical fiber sensing system based on optical time domain reflection and time division multiplexing(TDM) technology.

Paper Details

Date Published: 18 December 2019
PDF: 6 pages
Proc. SPIE 11340, AOPC 2019: Optical Fiber Sensors and Communication, 1134020 (18 December 2019); doi: 10.1117/12.2548181
Show Author Affiliations
Weihua Gong, Qilu Univ. of Technology (China)
Yubin Wei, Qilu Univ. of Technology (China)
Yanfang Li, Qilu Univ. of Technology (China)
Zhaowei Wang, Qilu Univ. of Technology (China)
Tingting Zhang, Qilu Univ. of Technology (China)
Jun Chang, Shandong Univ. (China)
Kenneth T. V. Grattan, Qilu Univ. of Technology (China)
City, Univ. of London (United Kingdom)
Tongyu Liu, Qilu Univ. of Technology (China)

Published in SPIE Proceedings Vol. 11340:
AOPC 2019: Optical Fiber Sensors and Communication
Jie Zhang; Songnian Fu; Jun Yang, Editor(s)

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