TITLE

Enhancement of laser-ultrasound/electromagnetic-acoustic transducer signals from Rayleigh wave interaction at surface features

AUTHOR(S)
Boonsang, S.; Dewhurst, R. J.
PUB. DATE
May 2003
SOURCE
Applied Physics Letters;5/12/2003, Vol. 82 Issue 19, p3348
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The enhancement of signals from Rayleigh wave interaction at solid surface features is described, for the case when signals arise from laser-ultrasound/electromagnetic-acoustic transducer (EMAT) detection system. Transient surface acoustic waves were detected by an in-plane EMAT receiver. B-scan images from surface slot or surface edge interactions revealed increased signal amplitude from these features of a factor ∼1.59. An explanation is based on the interaction of the EMAT sensor with the Rayleigh wave.
ACCESSION #
9697687

 

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