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


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.

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Divisions: College of Engineering & Physical Sciences > Aston Institute of Photonics Technology (AIPT)
Additional Information: 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.
Event Title: Conference on Sensory Phenomena and Measurement Instrumentation for Smart Structures and Materials
Event Type: Other
Event Dates: 1998-03-01
Uncontrolled Keywords: Applied Mathematics,Computer Science Applications,Electrical and Electronic Engineering,Electronic, Optical and Magnetic Materials,Condensed Matter Physics
Last Modified: 03 Jan 2024 17:51
Date Deposited: 02 Apr 2019 14:58
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Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
http://proceedi ... rticleid=940709 (Publisher URL)
PURE Output Type: Conference contribution
Published Date: 1998-07
Authors: Liu, T
Fernando, G F
Zhang, Lin (ORCID Profile 0000-0002-1691-5577)
Bennion, I
Rao, Y
Jackson, D A



Version: Published Version

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