Acoustical Science and Technology
Online ISSN : 1347-5177
Print ISSN : 1346-3969
ISSN-L : 0369-4232
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Imaging slit in metal plate using aerial ultrasound source scanning and nonlinear harmonic method
Ayumu OsumiKenta YamadaYouichi Ito
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2020 Volume 41 Issue 6 Pages 885-890

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Abstract

We previously proposed a stable high-speed visualization measurement method that combines nonlinear harmonics with aerial ultrasonic wave source scanning. In this paper, a more efficient method is proposed to visualize a slit flaw in a metal plate. The results show that visualization of the propagation of ultrasonic waves was possible by wave source scanning. Harmonic propagation was also visible. The slit in the metal plate was visualized with the same accuracy as that of the previous laser probe scanning method.

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© 2020 by The Acoustical Society of Japan
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