WIT Press


QNDE Using Complete Frequency Information From Ultrasound

Price

Free (open access)

Paper DOI

10.2495/BE040211

Volume

37

Pages

10

Published

2004

Size

492 kb

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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