16 May 2005 Tunable laser based carbon composite strain sensing system using wavelength division multiplexed fiber Bragg grating sensors
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Abstract
A carbon composite strain sensing system using an embedded array of polymide-coated fiber Bragg grating sensors, which are interrogated by a tunable laser, is described. The system is controlled from a personal computer using a customized program. The system was tested using a composite panel consisting of 28 plies of carbon fiber. Consistent strain measurements were achieved using a laser scan resolution of 0.02 nm, which corresponds to a strain resolution of approximately 15 me. Simulations of the panel were carried out using the Marc/Mentat finite element program for advanced engineering analysis. The experimental results compared well to those obtained from the simulations.
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Michael J. Connelly, Michael J. Connelly, Senan Moloney, Senan Moloney, Paul Butler, Paul Butler, } "Tunable laser based carbon composite strain sensing system using wavelength division multiplexed fiber Bragg grating sensors", Proc. SPIE 5758, Smart Structures and Materials 2005: Smart Sensor Technology and Measurement Systems, (16 May 2005); doi: 10.1117/12.597723; https://doi.org/10.1117/12.597723
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