Ultrasonic Lamb wave tomography using scanned EMATs and wavelet processing
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 1058-9759Full text not available from this repository.
Official URL: http://dx.doi.org/10.1080/10589750701327890
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.|
|Number of Pages:||16|
|Page Range:||pp. 19-34|
|Access rights to Published version:||Restricted or Subscription Access|
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