Research of fiber carbon dioxide sensing system based laser absorption spectrum

Yubin Wei; Tingting Zhang; Yanfang Li; Yanjie Zhao; Chang Wang; Tongyu Liu

doi:10.1117/12.914387

30 January 2012 Research of fiber carbon dioxide sensing system based laser absorption spectrum

Yubin Wei, Tingting Zhang, Yanfang Li, Yanjie Zhao, Chang Wang, Tongyu Liu

Proceedings Volume 8351, Third Asia Pacific Optical Sensors Conference; 835124 (2012) https://doi.org/10.1117/12.914387
Event: Asia Pacific Optical Sensors Conference, 2012, Sydney, Australia

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.

Citation Download Citation

Yubin Wei, Tingting Zhang, Yanfang Li, Yanjie Zhao, Chang Wang, and Tongyu Liu "Research of fiber carbon dioxide sensing system based laser absorption spectrum", Proc. SPIE 8351, Third Asia Pacific Optical Sensors Conference, 835124 (30 January 2012); https://doi.org/10.1117/12.914387

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