Simultaneous strain and temperature measurements in composites using extrinsic Fabry-Perot interferometric and intrinsic rare-earth-doped fiber sensors

Tonguy Liu; Gerard Franklyn Fernando; Zhiyi Zhang; Kenneth T. V. Grattan

doi:10.1117/12.316990

21 July 1998 Simultaneous strain and temperature measurements in composites using extrinsic Fabry-Perot interferometric and intrinsic rare-earth-doped fiber sensors

Tonguy Liu, Gerard Franklyn Fernando, Zhiyi Zhang, Kenneth T. V. Grattan

Author Affiliations +

Proceedings Volume 3330, Smart Structures and Materials 1998: Sensory Phenomena and Measurement Instrumentation for Smart Structures and Materials; (1998) https://doi.org/10.1117/12.316990
Event: 5th Annual International Symposium on Smart Structures and Materials, 1998, San Diego, CA, United States

Abstract

This paper reports on a novel optical fiber-based sensing scheme for conducting simultaneous strain and temperature measurements. The sensor design involved the use of an extrinsic Fabry-Perot interferometric strain sensor and a rare-earth doped fiber fluorescence decay-time based temperature sensor. The combined sensors were embedded in a carbon fiber reinforced composite system and evaluated. The feasibility of using this embedded sensor configuration for simultaneous strain and temperature measurements was demonstrated.

Citation Download Citation

Tonguy Liu, Gerard Franklyn Fernando, Zhiyi Zhang, and Kenneth T. V. Grattan "Simultaneous strain and temperature measurements in composites using extrinsic Fabry-Perot interferometric and intrinsic rare-earth-doped fiber sensors", Proc. SPIE 3330, Smart Structures and Materials 1998: Sensory Phenomena and Measurement Instrumentation for Smart Structures and Materials, (21 July 1998); https://doi.org/10.1117/12.316990

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