Impact of embedding techniques on FBG sensors

Jianzhong Hao, Guangxi Peng, Chin Yi Liaw, Wee Chye Ho, Lihao Chen, Shiro Takahashi, Jun Hong Ng, Xiaoqun Zhou, Chao Lu

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

Embedded fiber Bragg gratings (FBGs) have been fabricated for use as pressure sensors to measure forces applied in the direction perpendicular to the fiber axis. The 1cm length acrylate-coated FBGs were embedded into fiber-reinforced composites in two orientations in separate samples to test the properties of pressure sensor in each case. In samples where the FBG is embedded in parallel to the carbon fiber, the reflected spectrum remains a single wavelength peak as expected from an FBG. However, for samples where the FBG is placed at 90° to the carbon fiber, peak split was observed. Scanning Electron Microscopy (SEM) of the embedded acrylate-coated fiber shows that the FBG embedded parallel to the carbon fiber is wrapped completely while the FBG embedded at 90° to the carbon fiber is difficult to be wrapped well, suggesting the existence of longitudinal inhomogeneity.
Original languageEnglish
Title of host publication2004 9th IEEE Singapore International Conference on Communication Systems, ICCS
Pages559-563
Number of pages5
Publication statusPublished - 1 Dec 2004
Externally publishedYes
Event2004 9th IEEE Singapore International Conference on Communication Systems, ICCS - , Singapore
Duration: 6 Sep 20049 Sep 2004

Conference

Conference2004 9th IEEE Singapore International Conference on Communication Systems, ICCS
CountrySingapore
Period6/09/049/09/04

Keywords

  • Embedding
  • Fiber Bragg gratings
  • Fiber-reinforced composites
  • Scanning Electron Microscopy

ASJC Scopus subject areas

  • Engineering(all)

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