Fiber Optic Temperature and Gas Concentration Sensor for Mine Goaf Area Inner Detecting

Abstract:

Spontaneous combustion in coal goaf area is one of major disasters in coal mines. Detection technology based on signature Gas and Temperature is the primary means of spontaneous combustion forecasting of coal goaf area. A real-time remote fire detection system is proposed based on tunable diode laser absorption spectroscopy technology and FBG temperature sensing technology, to achieve valid detect of gas concentration and temperature. The System include fiber mathen concentration sensor and fiber temperature sensor based FBG. The system achieved remote on-line monitoring of gas concentration and temperature in mine goaf, meet the fire forecast need for Coal goaf area. There are obvious advantages Compared with the existing beam tube monitoring system in coal mine.

• Periodical: Advanced Materials Research (Volumes 524-527)
• Pages: 302-305
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.524-527.302
• Online since: May 2012
• Authors: Yu Bin Wei, Xu You Wang, Min Xin, Tong Yu Liu, Chang Wang
• Keywords: Beam Tube Monitoring System, Coal Goaf Area, Coal Mine, Fiber Bragg Grating (FBG), Fiber Mathen Concentration Sensor, Fiber Temperature Sensor, Signature Gas, Spontaneous Combustion, Tunable Diode Laser Absorption Spectroscopy

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