DocumentCode
886264
Title
Ultrasonic technique for sizing voids by using area functions
Author
Yang, J. ; Bond, L.J.
Author_Institution
Dept. of Mech. Eng., Univ. Coll. London, UK
Volume
139
Issue
2
fYear
1992
fDate
3/1/1992 12:00:00 AM
Firstpage
45
Lastpage
50
Abstract
A technique is reported for determining the sizes of voids in structural materials by the inversion of backscattered ultrasonic signals using the area function formula. The formulation of this method is based on the Born approximation which is a weak scattering approximation, but it is shown to work well for voids. Results for extracting the radii of spherical voids, or the tangent plane distances, of spheroidal voids are presented, using theoretical and experimental scattering data.
Keywords
backscatter; flow measurement; ultrasonic materials testing; ultrasonic scattering; voids (solid); Born approximation; NDT; area function; backscattered ultrasonic signals; inversion; radii; spherical voids; spheroidal voids; structural materials; tangent plane distances; voids sizing; weak scattering approximation;
fLanguage
English
Journal_Title
Science, Measurement and Technology, IEE Proceedings A
Publisher
iet
ISSN
0960-7641
Type
jour
Filename
210684
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