Strain transfer effect on measurements with distributed fiber optic sensors

Meng Yan, Xiao Tan, Soroush Mahjoubi, Yi Bao

Research output: Contribution to journalReview articlepeer-review

45 Scopus citations

Abstract

Strain transfer phenomenon in distributed fiber optic sensors (DFOS) has shown significant effects on sensor survival and measurement of strain distributions as well as detection and quantification of cracks in health monitoring and condition assessment of civil infrastructure. This review aims to establish a holistic understanding on the strain transfer effect for measurement using DFOS. The reviewed contents cover the fundamental mechanisms, influencing factors, practical solutions, and applications of strain transfer models. Both forward and inverse strain transfer analysis of DFOS are elaborated. Challenges and opportunities of strain transfer analysis for DFOS are discussed. This review shows that the forward and inverse strain transfer analysis are capable of accurately determining the strain distributions and cracks in host structures subjected to arbitrary strain fields. The clarification of the strain transfer effect will facilitate the applications of fiber optic sensors in civil infrastructure.

Original languageEnglish
Article number104262
JournalAutomation in Construction
Volume139
DOIs
StatePublished - Jul 2022

Keywords

  • Condition assessment
  • Inverse analysis
  • Strain field
  • Strain transfer
  • Structural health monitoring
  • fiber optic sensors

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