Simultaneous interrogation of multiple fiber Bragg grating sensors for dynamic strain measurements

C. Z. Shi, C. C. Chan, M. Zhang, J. Ju, Wei Jin, Y. B. Liao, Y. Zhang, Y. Zhou

Research output: Journal article publicationJournal articleAcademic researchpeer-review

10 Citations (Scopus)

Abstract

A fiber Bragg grating (FBG) sensor system for multi point, dynamic strain or temperature measurement is reported. The system uses a combination of an unbalanced fiber interferometer and phase locked loops and is capable of measuring dynamic signals with frequencies ranging from 100 Hz to10 kHz. Strain measurements with both serial and parallel FBG sensor arrays demonstrate strain resolution of better than 27.5 nε/√Hz and measurement range of 0-3400 με at 10 kHz.
Original languageEnglish
Pages (from-to)937-941
Number of pages5
JournalJournal of Optoelectronics and Advanced Materials
Volume4
Issue number4
Publication statusPublished - 1 Dec 2002

Keywords

  • Fiber Bragg gratings
  • Fiber optic sensors
  • Strain measurements
  • Temperature measurements

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this