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High-sensitive distributed transverse load sensing based on Brillouin dynamic gratings

  • Lei Teng
  • , Peilin Tong
  • , Taofei Jiang
  • , Hongying Zhang
  • , Zhiwei Lu
  • , Liang Chen
  • , Xiaoyi Bao
  • , Yongkang Dong
  • Harbin Institute of Technology
  • Harbin University of Science and Technology
  • University of Ottawa

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We report on a high-sensitive distributed transverse load sensing based on Brillouin dynamic gratings (BDGs) for the first time to the best of our knowledge. The sensing mechanism is to measure the transverse-load induced birefringence through exciting and probing a BDG in an elliptical-core polarization-maintaining fiber. A distributed measurement of transverse load is experimentally demonstrated with a 20-cm spatial resolution, and the measurement accuracy is as high as 4.8x10-4N/mm, which improves by three orders of magnitude compared with the prior techniques.

Original languageEnglish
Title of host publication24th International Conference on Optical Fibre Sensors, OFS 2015
EditorsHypolito Jose Kalinowski, Jose Luis Fabris, Wojtek J. Bock
PublisherSPIE
ISBN (Electronic)9781628418392
DOIs
StatePublished - 2015
Event24th International Conference on Optical Fibre Sensors, OFS 2015 - Curitiba, Brazil
Duration: 28 Sep 20152 Oct 2015

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9634
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

Conference24th International Conference on Optical Fibre Sensors, OFS 2015
Country/TerritoryBrazil
CityCuritiba
Period28/09/152/10/15

Keywords

  • Brillouin dynamic grating
  • Distributed optical fiber sensing
  • High-sensitive
  • Transverse load sensing

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