Reflectometric birefringent fiber sensor for absolute and relative strain measurement

Michael Campbell; Gang Zheng; Peter A. Wallace; A. S. Holmes-Smith

doi:10.1117/12.255358

25 October 1996 Reflectometric birefringent fiber sensor for absolute and relative strain measurement

Michael Campbell, Gang Zheng, Peter A. Wallace, A. S. Holmes-Smith

Proceedings Volume 2839, Fiber Optic and Laser Sensors XIV; (1996) https://doi.org/10.1117/12.255358
Event: SPIE's 1996 International Symposium on Optical Science, Engineering, and Instrumentation, 1996, Denver, CO, United States

Abstract

This paper describes a novel birefringent fiber remote strain sensor which is based on the FMCW technique and consists of a single length of single-mode birefringent fiber. The lead-in/lead-out fiber and the strain sensing fiber probe are separated by introducing a twist in the middle of the fiber. The sensor demonstrated is shown to have several advantages including a resolution of 2 microstrain resolution, a dynamic measurement range of 5000 microstrain, an environment-insensitive lead-in/lead-out signal section and a variable length strain sensing probe. The system is ideally suited to the measurement of absolute and relative strain.

Citation Download Citation

Michael Campbell, Gang Zheng, Peter A. Wallace, and A. S. Holmes-Smith "Reflectometric birefringent fiber sensor for absolute and relative strain measurement", Proc. SPIE 2839, Fiber Optic and Laser Sensors XIV, (25 October 1996); https://doi.org/10.1117/12.255358

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