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Novel Flexible Packaging Enables Highly Sensitive, Self-Decoupled FBG Strain Sensing in Extreme Environments

  • Yilin Fan
  • , Shengming Ma
  • , Tao Zhang
  • , Yu Lei
  • , Ying Chang
  • , Binghe Ma
  • Northwestern Polytechnical University Xian

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Accurate monitoring of strain/stress of pipelines in the aerospace field is critical for design verification and fault warning. To overcome the inherent limitations in packaging and thermal stability faced by traditional Fiber Bragg Grating (FBG) sensors, an innovative flexible FBG sensor was proposed. A key feature is its specialized packaging architecture, enabling both effective strain amplification and intrinsic temperature-strain decoupling. At 500°C the sensor demonstrated outstanding operational characteristics: high stability with drift below 0.0014%, superior linearity (R2 > θ.99), and excellent repeatability with errors less than 3.44%. This work presents a viable and advanced FBG-based sensing solution for challenging high-temperature strain measurement scenarios, particularly for non-planar structures.

Original languageEnglish
Title of host publicationIEEE SENSORS 2025 - Conference Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9798331544676
DOIs
StatePublished - 2025
Event2025 IEEE SENSORS - Vancouver, Canada
Duration: 19 Oct 202522 Oct 2025

Publication series

NameProceedings of IEEE Sensors
ISSN (Print)1930-0395
ISSN (Electronic)2168-9229

Conference

Conference2025 IEEE SENSORS
Country/TerritoryCanada
CityVancouver
Period19/10/2522/10/25

Keywords

  • FBG sensors
  • flexible packaging
  • high temperatures
  • self-decoupling
  • strain measurements

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