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Brillouin scattering based distributed fiber optic temperature sensing for fire detection

From National Research Council Canada

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Affiliation
  1. National Research Council of Canada. NRC Institute for Research in Construction
FormatText, Article
ConferenceThe 7th International Symposium on Fire Safety Conference, 1 June 2002, Worcester, U.S.A.
Subjectfiber optic sensor; fire detection; Brillouin scattering; Detection
Abstract
This paper presents a distributed fiber optic Brillouin scattering investigation, which involves measuring the Brillouin intensity versus time for real-time temperature measurements. This can be applied in practical fire detection schemes through the use of a threshold temperature that corresponds to the maximum Brillouin intensity. In the experiments, a 11 km fiber length was interrogated by 20 ns pulses (2 m spatial resolution) to monitor the temperature variations in a 10 m fiber region. The corresponding theory has confirmed the suitability of real-time intensity monitoring for temperature measurement.
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  • The 7th International Symposium on Fire Safety Conference [Proceedings] (1 November 2003): 221–232.
LanguageEnglish
Peer reviewedYes
NRC numberNRCC 45168
NRC-IRC-14226
NPARC number20378976
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Record identifierf6513c5f-b172-497b-81bf-2002f0246d03
Record created2012-07-24
Record modified2021-01-05
Date modified: