Strain-rate sensor based on in-fiber Doppler velocimetry

Y. L. Lo, James S. Sirkis

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

An optical fiber strain-rate sensor based on in-line Doppler velocimetry is developed using a 3 × 3 coupler with a large path imbalance Mach-Zehnder interferometer for passive demodulation of Doppler wavelength shifts. A model is developed that relates the strain-rate in an optical fiber to the corresponding Doppler wavelength shifts. The strain-rate obtained by differentiating strain from a Michelson strain sensor mounted on the PZT cylinder shows good agreement with the strain-rate directly obtained from the Doppler-based strain-rate sensor.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
PublisherSociety of Photo-Optical Instrumentation Engineers
Pages303-312
Number of pages10
ISBN (Print)0819417939
Publication statusPublished - 1995 Jan 1
EventSmart Structures and Materials 1995: Smart Sensing, Processing, and Instrumentation - San Diego, CA, USA
Duration: 1995 Feb 271995 Mar 1

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume2444
ISSN (Print)0277-786X

Other

OtherSmart Structures and Materials 1995: Smart Sensing, Processing, and Instrumentation
CitySan Diego, CA, USA
Period95-02-2795-03-01

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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