IEICE Electronics Express
Online ISSN : 1349-2543
ISSN-L : 1349-2543
LETTER
Possibilities of nondestructive evaluation of a pipe using air-coupled ultrasonic wave in the MHz range
K. ImanoM. Kondou
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JOURNALS FREE ACCESS

2008 Volume 5 Issue 17 Pages 668-671

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Abstract

A trial for the excitation of a guided wave using a MHz range air-coupled ultrasonic wave in a hollow pipe is attempted. A guided wave is propagated in a 1mm thick aluminum pipe at a critical angle and transmission and reception via air are successfully accomplished. The flexural mode guided wave is detected using wavelet transformation.

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© 2008 by The Institute of Electronics, Information and Communication Engineers
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