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Fire Source Localization Based on Distributed Temperature Sensing by a Dual-Line Optical Fiber System
Miao Sun 1 , Yuquan Tang, 1 Shuang Yang, 1 Jun Li, 1 Markus W. Sigrist 2 , Fengzhong Dong, 1 Ingolf Willms, Hongxing Yang
1  Anhui Provincial Key Laboratory of Photonic Devices and Materials, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China;(M.S.);(Y.T.);(S.Y.);(J.L.)
2  ETH Z├╝rich, Institute for Quantum Electronics, Otto-Stern-Weg 1, CH-8093 Zurich, Switzerland

Published: 06 June 2016 by MDPI in Sensors
MDPI, Volume 16; 10.3390/s16060829
Abstract: We propose a method for localizing a fire source using an optical fiber distributed temperature sensor system. A section of two parallel optical fibers employed as the sensing element is installed near the ceiling of a closed room in which the fire source is located. By measuring the temperature of hot air flows, the problem of three-dimensional fire source localization is transformed to two dimensions. The method of the source location is verified with experiments using burning alcohol as fire source, and it is demonstrated that the method represents a robust and reliable technique for localizing a fire source also for long sensing ranges.
Keywords: Optical Fiber Distributed Temperature Sensor, fire source localization, dual-line optical fiber
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