Enhancement of Ultrasonic C-Scan Images for Inspection of Multi-Layered Composite Panels

Abstract:

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One of the serious problems that make the flaw identification in a multi-layered thick composite panel more difficult is the interference effect of the upper layer. To take care of such a problem, here we propose an image enhancement approach that can get rid of such an interference effect to ultrasonic C-scan images by a normalization of the acquired signals by a reference signals, and demonstrate its performance in the experiments. Specifically, three specimens with artificial flaws are prepared and ultrasonic C-scan images are acquired experimentally to eliminate the undesired interference effect. Great successes are observed in the present study demonstrating the high potential of the proposed algorithm as a practical image enhancement tool in many practical situations.

Info:

Periodical:

Key Engineering Materials (Volumes 326-328)

Edited by:

Soon-Bok Lee and Yun-Jae Kim

Pages:

713-716

DOI:

10.4028/www.scientific.net/KEM.326-328.713

Citation:

H. Cho et al., "Enhancement of Ultrasonic C-Scan Images for Inspection of Multi-Layered Composite Panels", Key Engineering Materials, Vols. 326-328, pp. 713-716, 2006

Online since:

December 2006

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Price:

$35.00

[1] Song, S. J., Kim, Y. H., Cho, H., Development of the nondestructive testing process technique for the bulletproofing composite panel, Hankuk Fiber Co. Ltd. (2001).

[2] Ultrasonic Testing of Materials: 4th Fully Revised Edition, Josef Krautkramer, Herbert Krautkramer, Springer-Verlag, Berlin Heidelberg NewYork London Paris Tokyo Hongkong Barcelona, (1990).

DOI: 10.1007/978-3-662-10680-8

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