Skip to main navigation Skip to search Skip to main content

Study on FBG sensor steel capillary encapsulating technique and sensing properties

  • Zhi Zhou*
  • , Xue Feng Zhao
  • , Zhan Jun Wu
  • , Li Bing Wan
  • , Jin Ping Ou
  • *Corresponding author for this work
  • School of Civil Engineering, Harbin Institute of Technology
  • School of Astronautics, Harbin Institute of Technology

Research output: Contribution to journalArticlepeer-review

Abstract

In consideration of bare optical fiber being fragility, the steel capillary encapsulating technique for FBG (fiber Bragg grating) sensor was developed. The temperature and strain sensing properties of the encapsulated FBG sensor were experimentally studied on material test system and under hot water respectively. The comparison of the experimental results between encapsulated fiber and bare fiber indicates that the strain sensing properties of the encapsulated FBG sensor are nearly the same as that of bare FBG, while, the temperature sensing ability of the encapsulated FBG sensor is improved and the temperature sensitivity coefficient is 2.5 times as much as that of the bare FBG.

Original languageEnglish
Pages (from-to)1089-1092
Number of pages4
JournalZhongguo Jiguang/Chinese Journal of Lasers
Volume29
Issue number12
StatePublished - Dec 2002
Externally publishedYes

Keywords

  • Encapsulating technique
  • Fiber Bragg grating
  • Strain sensing
  • Temperature sensing

Fingerprint

Dive into the research topics of 'Study on FBG sensor steel capillary encapsulating technique and sensing properties'. Together they form a unique fingerprint.

Cite this