A cost-effective edge-filter based FBG interrogator using catastrophic fuse effect micro-cavity interferometers

Camilo A.R. Díaz, Carlos A.F. Marques, M. Fátima F. Domingues, Moisés R.N. Ribeiro, Anselmo Frizera-Neto, Maria J. Pontes, Paulo S. André, Paulo F.C. Antunes

Research output: Contribution to journalArticlepeer-review

69 Scopus citations

Abstract

This paper proposed an inexpensive high contrast in-line micro-cavity interferometer for edge-filter strain and temperature interrogation of a fiber Bragg grating sensor. The simulation model is presented in order to describe the sensor behavior which strongly agrees with the experimental results with a mean error lower than 0.04%. The results show evidences of high repeatability and stability achieved in measurements of strain and temperature from 0 to 1440 μStrain and 5 °C to 50 °C, respectively.

Original languageBritish English
Pages (from-to)486-493
Number of pages8
JournalMeasurement: Journal of the International Measurement Confederation
Volume124
DOIs
StatePublished - Aug 2018

Keywords

  • FBG
  • FPI micro-cavity
  • Interrogation technique
  • Strain
  • Temperature

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