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Proceedings Paper

High Range Resolution Ultrasonic C Scan For Nondestructive Evaluation Of Composite Materials
Author(s): R. Zapp; B. Ho; L. Li
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Paper Abstract

A low cost high range resolution ultrasonic imaging system has been developed to nondestructively evaluate composite material as well as biological tissue and agricultural products. The system which is capable of dual displays, B and C scans, utilizes high frequency sampling and phase processing of the r.f. signal in order to achieve range resolutions of .5 mm and range accuracies of .1 mm. A pseudorandom sequence signal processing scheme is under development to enhance the signal-to-noise ratio for low level signals.

Paper Details

Date Published: 10 September 1987
PDF: 7 pages
Proc. SPIE 0768, Pattern Recognition and Acoustical Imaging, (10 September 1987); doi: 10.1117/12.940281
Show Author Affiliations
R. Zapp, Michigan State University (United States)
B. Ho, Michigan State University (United States)
L. Li, Michigan State University (United States)

Published in SPIE Proceedings Vol. 0768:
Pattern Recognition and Acoustical Imaging
Leonard A. Ferrari, Editor(s)

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