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Proceedings Paper

Distributed defect detection system using a unidirectional acoustic waveguide
Author(s): Junru Wu; William B. Spillman
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Paper Abstract

Many standard non destructive testing systems utilize ultrasonic pulse echo techniques to localize defects within structures. These techniques rely upon the scattering of acoustic energy by the defect and two or more acoustic detectors for localization. In this paper, an alternate method of structural damage detection and location is proposed. The technique involves the use of a leaky acoustic waveguide and a unidirectional acoustic waveguide attached to the structure of interest. Only one acoustic detector is required for defect location. An analysis of the concept is provided and experimental results are presented.

Paper Details

Date Published: 1 May 1994
PDF: 8 pages
Proc. SPIE 2191, Smart Structures and Materials 1994: Smart Sensing, Processing, and Instrumentation, (1 May 1994); doi: 10.1117/12.173958
Show Author Affiliations
Junru Wu, Univ. of Vermont (United States)
William B. Spillman, Univ. of Vermont (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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