QNDE Using Complete Frequency Information From Ultrasound
Price
Free (open access)
Transaction
Volume
37
Pages
10
Published
2004
Size
492 kb
Paper DOI
10.2495/BE040211
Copyright
WIT Press
Author(s)
G. Rus, S.-C. Wooh & R. Gallego
Abstract
Practical NDE techniques by ultrasonics are based on A, B and C scan images processed and filtered in a variety of ways, from which the characterization of the defects are quantitatively extracted by heuristic methods or even by visual interpretation of the image. Apart of the arbitrariness of the choice of this threshold, a great amount of information contained in the image and therefore in the measured signal is being lost. This rich datamay be crucial to combat the noise that hides dif- ficult defects. This paper presents an effort to integrate all the information recorded in the measurements in a generalized processing or inversion scheme. QNDE was originated as an application of the fast developing nu
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