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Proceedings Paper

Research of fiber carbon dioxide sensing system based laser absorption spectrum
Author(s): Yubin Wei; Tingting Zhang; Yanfang Li; Yanjie Zhao; Chang Wang; Tongyu Liu
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Paper Abstract

Carbon dioxide is one of the important gas need to be detected in coal mine safety. In the mine limited ventilation environment, Concentration of carbon dioxide directly affects the health of coal miners. Carbon dioxide is also one of important signature Gas in spontaneous combustion forecasting of coal goaf area, it is important to accurately detect concentration of carbon dioxide in coal goaf area. This paper proposed a fiber carbon dioxide online sensing system based on tunable diode laser spectroscopy. The system used laser absorption spectroscopy and optical fiber sensors combined, and a near-infrared wavelength 1608nm fiber-coupled distributed feedback laser (DFB) as a light source and a 7cm length gas cell, to achieve a high sensitivity concentration detection of carbon dioxide gas. The technical specifications of sensing system can basically meet the need of mine safety.

Paper Details

Date Published: 30 January 2012
PDF: 6 pages
Proc. SPIE 8351, Third Asia Pacific Optical Sensors Conference, 835124 (30 January 2012); doi: 10.1117/12.914387
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)
Chang Wang, Shandong Academy of Sciences (China)
Tongyu Liu, Shandong Academy of Sciences (China)

Published in SPIE Proceedings Vol. 8351:
Third Asia Pacific Optical Sensors Conference
John Canning; Gangding Peng, Editor(s)

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