DocumentCode
292251
Title
Wavelet analysis for ultrasonic crack detection and modelization
Author
Lefebvre, J.-P. ; Lasaygues, P.
Volume
2
fYear
1994
fDate
Oct. 31 1994-Nov. 3 1994
Firstpage
1143
Abstract
Wavelet analysis has been applied as a signal processing tool for ultrasonic crack detection at an interface. The basic idea is to discriminate signatures in the time-frequency frame, precisely in the time-scale frame. The tool is also shown to be a good one to qualify modelling of the interaction between waves and flaws. It also allows one to reject parasitic distorted signals
Keywords
acoustic signal processing; crack detection; time-frequency analysis; ultrasonic diffraction; ultrasonic materials testing; wavelet transforms; US wave diffraction; interface; parasitic distorted signal rejection; signal processing tool; signature discrimination; time-frequency frame; time-scale frame; ultrasonic crack detection; wave-flaw interaction modelling; wavelet analysis; Acoustic diffraction; Acoustic signal processing; Acoustic testing; Crack detection; Frequency domain analysis; Nondestructive testing; Time domain analysis; Wavelet transforms;
fLanguage
English
Publisher
ieee
Conference_Titel
Ultrasonics Symposium, 1994. Proceedings., 1994 IEEE
Conference_Location
Cannes, France
Print_ISBN
0-7803-2012-3
Type
conf
DOI
10.1109/ULTSYM.1994.401790
Filename
401790
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