Simultaneous strain and temperature measurement using an integrated fibre Bragg grating/extrinsic Fabry-Perot sensor

T Liu, G F Fernando, Lin Zhang, I Bennion, Y Rao, D A Jackson

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

Abstract

This paper reports on a novel optical fiber sensor configuration for conducting simultaneous strain and temperature measurements. The sensor consisted of an optical fiber-based extrinsic Fabry-Perot interferometer (EFPI) with an integrated fiber Bragg grating (FBG). The FBG was located within a glass capillary which housed the EFPI sensor and was thus in a strain-free condition. The FBG is primarily sensitive to temperature, while the EFPI was sensitive to both strain and temperature. The integrated FBG/EFPI sensor was embedded in a carbon fiber reinforced composite and evaluated. The standard deviation of strain measurement was 36 (mu) e in the range 0 to 1200 (mu) e, and the temperature measurement had a standard deviation of 3.5 degrees C in the range 30 degrees to 70 degrees C. The thermal expansion of the cross-ply composite was investigated and was found approximately 4.05 X 10-6 degrees C.
Original languageEnglish
Title of host publicationSensory Phenomena and Measurement Instrumentation for Smart Structures and Materials
EditorsRichard O. Claus, William B. Spillman, Jr.
PublisherSPIE
Pages324-331
Number of pages8
DOIs
Publication statusPublished - Jul 1998
EventConference on Sensory Phenomena and Measurement Instrumentation for Smart Structures and Materials - San Diego, California, United States
Duration: 1 Mar 1998 → …

Publication series

NameSPIE proceedings
PublisherSPIE
Volume3330
ISSN (Print)0277-786X

Conference

ConferenceConference on Sensory Phenomena and Measurement Instrumentation for Smart Structures and Materials
CountryUnited States
CitySan Diego, California
Period1/03/98 → …

Bibliographical note

Tonguy Liu ; Gerard F. Fernando ; Lin Zhang ; Ian Bennion ; Yun-Jiang Rao and David A. Jackson "Simultaneous strain and temperature measurement using an integrated fiber Bragg grating/extrinsic Fabry-Perot sensor", Proc. SPIE 3330, Smart Structures and Materials 1998: Sensory Phenomena and Measurement Instrumentation for Smart Structures and Materials, 324 (July 21, 1998);

Copyright 1998 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.

http://dx.doi.org/10.1117/12.316988

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  • Cite this

    Liu, T., Fernando, G. F., Zhang, L., Bennion, I., Rao, Y., & Jackson, D. A. (1998). Simultaneous strain and temperature measurement using an integrated fibre Bragg grating/extrinsic Fabry-Perot sensor. In R. O. Claus, & W. B. Spillman, Jr. (Eds.), Sensory Phenomena and Measurement Instrumentation for Smart Structures and Materials (pp. 324-331). (SPIE proceedings; Vol. 3330). SPIE. https://doi.org/10.1117/12.316988