On-line temperature monitoring research on power cables with BOTDR sensing technology
HAO Yun-qi
YANG Yan-li
CAO Yu-long
YE Qing
CAI Hai-wen
Abstract：To on-line monitor the temperature distribution of the fiber compounded cable,the spontaneous Bril-louin scattering of single-mode fiber was applied to construct a Brillouin optical time domain reflectometry (BOTDR).With the BOTDR sensing system,the central frequency of every spatial resolution wasabstracted;then the Brillouin frequency distribution along the sensing fiber was obtained;finally the temperature distribu-tion along the fiber was calculated.Compared to the experimental results of thermo-pairs,the temperature difference was less than 2 ℃;but the BOTDR sensing system was a better scheme for temperature monitoring of long-distance compounded cable.
Keywords：fiber opticson-line temperature monito-ringBOTDR sensing technologythermo-pairfiber compounded cable
Publication Date：2016-05-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 99-103 )