6 August 2001 Analysis of feasibility on the use of fiber Bragg grating sensors as ultrasound detectors
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Abstract
The spectral response changing of a Fiber Bragg grating due to the interactions with an ultrasound wave have been numerically analyzed by a transfer matrix approach has been used, taking into account the geometrical and elasto-optic effects. Numerical analysis show that it's possible to characterize the ultrasound wave, only if the ratio between the ultrasonic wavelength and the length of the used grating exceeds an established value, which depends on both the characteristics of the Bragg grating and the ultrasound amplitude itself.
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Giuseppe Coppola, Aldo Minardo, Andrea Cusano, Giovanni Breglio, Luigi Zeni, Antonello Cutolo, Antonio Maria Calabro, Michele Giordano, and Luigi Nicolais "Analysis of feasibility on the use of fiber Bragg grating sensors as ultrasound detectors", Proc. SPIE 4328, Smart Structures and Materials 2001: Sensory Phenomena and Measurement Instrumentation for Smart Structures and Materials, (6 August 2001); doi: 10.1117/12.435523; https://doi.org/10.1117/12.435523
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