The Extraction of Single-Void Characteristics from Ultrasonic Backscatter from Void Clusters
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Begun in 1973, the Review of Progress in Quantitative Nondestructive Evaluation (QNDE) is the premier international NDE meeting designed to provide an interface between research and early engineering through the presentation of current ideas and results focused on facilitating a rapid transfer to engineering development.
This site provides free, public access to papers presented at the annual QNDE conference between 1983 and 1999, and abstracts for papers presented at the conference since 2001.
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Abstract
Using ultrasonic backscatter from a specimen containing a cluster of cavities, the size of a single cavity in the cluster has been extracted. A time-domain response obtained by the extraction procedure compares favorably with the analytically calculated response for a single cavity. The procedure removes distortions of the measured response caused by the measuring system, by the specimen, and by other cavities in the cluster. This method should be useful for obtaining similar results from different types of flaw clusters in various types of materials.