Ho, K. S., Billson, D. R. and Hutchins, D. A.. (2007) Ultrasonic Lamb wave tomography using scanned EMATs and wavelet processing. Nondestructive Testing and Evaluation, Vol.22 (No.1). pp. 19-34. ISSN 1058-9759

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Abstract

A continuous wavelet transform has been used to analyse multi-mode Lamb wave propagation. This was applied to experimental data from non-contact electromagnetic acoustic transducers (EMATs) in thin metal plates. The technique was able to identify the presence of s(0), a(0), a(1), s(1) and s(2) modes in an aluminium plate from a single waveform, and hence to separate the modes. The technique has been applied to tomographic reconstruction of artificial defects in plates from individual modes to illustrate the usefulness of the approach.

Item Type:	Journal Article
Subjects:	T Technology > TA Engineering (General). Civil engineering (General)
Divisions:	Faculty of Science > Engineering
Journal or Publication Title:	Nondestructive Testing and Evaluation
Publisher:	Taylor & Francis Ltd.
ISSN:	1058-9759
Official Date:	March 2007
Volume:	Vol.22
Number:	No.1
Number of Pages:	16
Page Range:	pp. 19-34
Identification Number:	10.1080/10589750701327890
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access
URI:	http://wrap.warwick.ac.uk/id/eprint/31503

Data sourced from Thomson Reuters' Web of Knowledge

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