Fiber optic Bragg grating array for shape and vibration mode sensing

Michael A. Davis; Alan D. Kersey; James S. Sirkis; E. Joseph Friebele

doi:10.1117/12.173936

1 May 1994 Fiber optic Bragg grating array for shape and vibration mode sensing

Michael A. Davis, Alan D. Kersey, James S. Sirkis, E. Joseph Friebele

Proceedings Volume 2191, Smart Structures and Materials 1994: Smart Sensing, Processing, and Instrumentation; (1994) https://doi.org/10.1117/12.173936
Event: 1994 North American Conference on Smart Structures and Materials, 1994, Orlando, FL, United States

Abstract

Fiber Bragg gratings are of particular interest for distributed sensor applications such as embedded sensors for structural strain monitoring. This paper discusses the use of a wavelength division multiplexed fiber Bragg grating array for structural shape sensing and vibrational mode analysis. The gratings are surface attached to a cantilever beam and demodulated by a scanning fiber Fabry Perot filter to obtain strain information at different locations along the structure. A PC is used to read the strain information and perform static shape modeling of the beam.

Citation Download Citation

Michael A. Davis, Alan D. Kersey, James S. Sirkis, and E. Joseph Friebele "Fiber optic Bragg grating array for shape and vibration mode sensing", Proc. SPIE 2191, Smart Structures and Materials 1994: Smart Sensing, Processing, and Instrumentation, (1 May 1994); https://doi.org/10.1117/12.173936

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