Simplified sensor design for temperature-strain discrimination using fiber Bragg gratings embedded in laminated composites

L. Rodriguez-Cobo; A. T. Marques; J.M. Lopez-Higuera; J. L. Santos; O. Frazão

doi:10.1117/12.2026524

20 May 2013 Simplified sensor design for temperature-strain discrimination using fiber Bragg gratings embedded in laminated composites

L. Rodriguez-Cobo, A. T. Marques, J.M. Lopez-Higuera, J. L. Santos, O. Frazão

Author Affiliations +

Proceedings Volume 8794, Fifth European Workshop on Optical Fibre Sensors; 87942W (2013) https://doi.org/10.1117/12.2026524
Event: Fifth European Workshop on Optical Fibre Sensors, 2013, Krakow, Poland

Abstract

Several easy-to-manufacture designs based on a pair of Fiber Bragg Gratings structure embedded in Carbon Fiber Reinforced Plastic (CFRP) have been explored. These smart composites can be used for strain and temperature discrimination. A Finite Elements Analysis and Matlab software were used to study the mechanical responses and its optical behaviors. The results exhibited different sensitivity and using a matrix method it is possible to compensate the thermal drift in a real application keeping a simple manufacture process.

Citation Download Citation

L. Rodriguez-Cobo, A. T. Marques, J.M. Lopez-Higuera, J. L. Santos, and O. Frazão "Simplified sensor design for temperature-strain discrimination using fiber Bragg gratings embedded in laminated composites", Proc. SPIE 8794, Fifth European Workshop on Optical Fibre Sensors, 87942W (20 May 2013); https://doi.org/10.1117/12.2026524

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