In-situ acoustical and optical waveguide sensors

Christian V. O'Keefe

doi:10.1117/12.2298106

1 May 1992 In-situ acoustical and optical waveguide sensors

Christian V. O'Keefe

Proceedings Volume 1777, First European Conference on Smart Structures and Materials; 17772B (1992) https://doi.org/10.1117/12.2298106
Event: First European Conference on Smart Structures and Materials, 1992, Glasgow, United Kingdom

Abstract

In-situ fiber optic and acoustic waveguide sensors can monitorprocesses such as composite cure or microstrain in large aerospace structures. Thesimultaneous response to temperature and strain in optical fibers has been exploited tocreate a single-fiber dual sensor using a single light source that can measure bothtemperature and strain independently. With the use of lead-in/lead-out fibers, thesemeasurements can be performed over a localized region. The use of acousticwaveguides as sensors have shown their ability to monitor both graphite/epoxycomposite cure and post-process pressure-induced cross-ply strains.

Citation Download Citation

Christian V. O'Keefe "In-situ acoustical and optical waveguide sensors", Proc. SPIE 1777, First European Conference on Smart Structures and Materials, 17772B (1 May 1992); https://doi.org/10.1117/12.2298106

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