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Related Experiment Video

Updated: Mar 19, 2026

Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping
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Fire Source Localization Based on Distributed Temperature Sensing by a Dual-Line Optical Fiber System.

Miao Sun1,2, Yuquan Tang3, Shuang Yang4,5

  • 1Anhui 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.

Sensors (Basel, Switzerland)
|June 9, 2016
PubMed
Summary

This study introduces a fire source localization method using optical fiber distributed temperature sensing. The technique reliably pinpoints fire origins by measuring hot air flow temperatures, even over long distances.

Keywords:
dual-line optical fiberfire source localizationoptical fiber distributed temperature sensor

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Area of Science:

  • Engineering
  • Sensor Technology
  • Fire Safety

Background:

  • Accurate fire source localization is critical for effective emergency response and safety management.
  • Traditional methods may face limitations in complex environments or over extended ranges.

Purpose of the Study:

  • To develop and validate a novel method for three-dimensional fire source localization.
  • To utilize optical fiber distributed temperature sensing for enhanced fire detection and location.

Main Methods:

  • Installation of two parallel optical fibers as a sensing element near the ceiling of a closed room.
  • Measurement of hot air flow temperatures to infer fire source location.
  • Experimental verification using a controlled alcohol fire source.

Main Results:

  • Successful three-dimensional localization of the fire source was achieved.
  • The method demonstrated robustness and reliability in experimental settings.
  • Effective performance was observed for long sensing ranges.

Conclusions:

  • The proposed optical fiber distributed temperature sensing method offers a robust and reliable solution for fire source localization.
  • This technique has practical implications for improving fire safety systems in various environments.