Detection of acoustic emission location using optical fiber sensors

Kent A. Murphy; Michael F. Gunther; Anbo Wang; Richard O. Claus; Jonathan A. Greene; Tuan A. Tran

doi:10.1117/12.173957

1 May 1994 Detection of acoustic emission location using optical fiber sensors

Kent A. Murphy, Michael F. Gunther, Anbo Wang, Richard O. Claus, Jonathan A. Greene, Tuan A. Tran

Proceedings Volume 2191, Smart Structures and Materials 1994: Smart Sensing, Processing, and Instrumentation; (1994) https://doi.org/10.1117/12.173957
Event: 1994 North American Conference on Smart Structures and Materials, 1994, Orlando, FL, United States

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.

Citation Download Citation

Kent A. Murphy, Michael F. Gunther, Anbo Wang, Richard O. Claus, Jonathan A. Greene, and Tuan A. Tran "Detection of acoustic emission location using optical fiber sensors", Proc. SPIE 2191, Smart Structures and Materials 1994: Smart Sensing, Processing, and Instrumentation, (1 May 1994); https://doi.org/10.1117/12.173957

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