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Proceedings Paper

Fiber carbon monoxide sensing system and its application in coal mines
Author(s): Yubin Wei; Tingting Zhang; Yanfang Li; Yanjie Zhao; Tongyu Liu; Chang Wang
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Paper Abstract

Spontaneous combustion in coal goaf area is one of major disasters in coal mines. Detection technology based on signature Gas is the primary means of spontaneous combustion forecasting of coal goaf area. A real-time remote fire gas detection system is proposed based on tunable diode laser absorption spectroscopy technology, to achieve valid test of Carbon Monoxide signature gas. The System uses the wavelength, respectively 1.567um near-infrared band fibercoupled distributed feedback laser (DFB) as the light source, combined wavelength modulation spectroscopy and harmonic detection technique, developed a fiber-coupled white-type long-path gas absorption cell, to achieve high sensitivity detection of gas concentration. The system achieved a remote on-line monitoring of Carbon Monoxide gas concentration, to meet the fire forecast need for Coal Mine goaf area.

Paper Details

Date Published: 7 November 2012
PDF: 4 pages
Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 84216K (7 November 2012); doi: 10.1117/12.975259
Show Author Affiliations
Yubin Wei, Shandong Academy of Sciences (China)
Tingting Zhang, Shandong Academy of Sciences (China)
Yanfang Li, Shandong Academy of Sciences (China)
Yanjie Zhao, Shandong Academy of Sciences (China)
Tongyu Liu, Shandong Academy of Sciences (China)
Chang Wang, Shandong Academy of Sciences (China)

Published in SPIE Proceedings Vol. 8421:
OFS2012 22nd International Conference on Optical Fiber Sensors
Yanbiao Liao; Wei Jin; David D. Sampson; Ryozo Yamauchi; Youngjoo Chung; Kentaro Nakamura; Yunjiang Rao, Editor(s)

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