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Sensors (Basel). 2016 Jun 6;16(6). pii: E829. doi: 10.3390/s16060829.

Fire Source Localization Based on Distributed Temperature Sensing by a Dual-Line Optical Fiber System.

Author information

1
Anhui Provincial Key Laboratory of Photonic Devices and Materials, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China. sunmiao712@163.com.
2
Hefei Institutes of Physical Science, University of Science and Technology of China, Hefei 230029, China. sunmiao712@163.com.
3
Anhui Provincial Key Laboratory of Photonic Devices and Materials, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China. laserway@163.com.
4
Anhui Provincial Key Laboratory of Photonic Devices and Materials, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China. franky.aiofm@foxmail.com.
5
Hefei Institutes of Physical Science, University of Science and Technology of China, Hefei 230029, China. franky.aiofm@foxmail.com.
6
Anhui Provincial Key Laboratory of Photonic Devices and Materials, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China. ljsiom@aiofm.ac.cn.
7
ETH Zürich, Institute for Quantum Electronics, Otto-Stern-Weg 1, CH-8093 Zurich, Switzerland. sigristm@phys.ethz.ch.
8
Anhui Provincial Key Laboratory of Photonic Devices and Materials, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China. fzdong@aiofm.cas.cn.
9
Hefei Institutes of Physical Science, University of Science and Technology of China, Hefei 230029, China. fzdong@aiofm.cas.cn.

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:

dual-line optical fiber; fire source localization; optical fiber distributed temperature sensor

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