ULTRASOUND MICROSCOPY TECHNIQUES TO DETECT DELAMINATION IN STACKED LAYERS

Stefan Johann Rupitsch, Bernhard Günther Zagar

Abstract

We present the theory and some applications of the synthetic aperture focusing technique applied to single transducer ultrasonic data sets. In this technique a virtual source located at the geometrical focal point of the physical transducer is algorithmically generated and thus allows for tighter focusing over a geometrically larger scan volume. We present results from a structural test phantom (two copper wires) and a delaminated specimen.

Keywords

ultrasound, synthetic aperture focusing technique, virtual source, B–mode imaging, delamination

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DOI

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IMEKO TC

TC10 - Measurement for Diagnostics, Optimization and Control

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