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Proceedings Paper

Detection of acoustic emission location using optical fiber sensors
Author(s): Kent A. Murphy; Michael F. Gunther; Anbo Wang; Richard O. Claus; Jonathan A. Greene; Tuan A. Tran
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Paper Abstract

This paper describes a fiber optic system for detection of acoustic emission location in which extrinsic Fabry-Perot interferometric fiber sensors are incorporated in two different configurations: (1) attached to a thin aluminum panel, and (2) embedded in a graphite/epoxy composite laminate. The system computes the coordinate of the acoustic emission source using sensor recorded differential arrival times of the acoustic signals generated by the source. The impact location can be determined with a 0.5 millimeter resolution and an accuracy typically less than five millimeters.

Paper Details

Date Published: 1 May 1994
PDF: 9 pages
Proc. SPIE 2191, Smart Structures and Materials 1994: Smart Sensing, Processing, and Instrumentation, (1 May 1994); doi: 10.1117/12.173957
Show Author Affiliations
Kent A. Murphy, Virginia Polytechnic Institute and State Univ. (United States)
Michael F. Gunther, Virginia Polytechnic Institute and State Univ. (United States)
Anbo Wang, Virginia Polytechnic Institute and State Univ. (United States)
Richard O. Claus, Virginia Polytechnic Institute and State Univ. (United States)
Jonathan A. Greene, Fiber and Sensor Technologies, Inc. (United States)
Tuan A. Tran, Fiber and Sensor Technologies, Inc. (United States)


Published in SPIE Proceedings Vol. 2191:
Smart Structures and Materials 1994: Smart Sensing, Processing, and Instrumentation
James S. Sirkis, Editor(s)

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