Location

La Jolla, CA

Start Date

1-1-1998 12:00 AM

Description

More and more surface probes have been used instead of bobbin coils to detect smaller flaws in eddy current testing. Needs of high accuracy testing have been making eddy current testing use precise scanning of the probes. Flaw imaging has been used in eddy current testing in order to identify small flaws [1–8]. However, the eddy current testing using the conventional pancake coil probe provides only blurred images of flaws. In order to obtain clear flaw images in eddy current testing, the authors first tried to restore clear flaw images from the blurred eddy current testing images using deconvolution method. However, the deconvolution method provided only clear but rather noisy images.

Book Title

Review of Progress in Quantitative Nondestructive Evaluation

Volume

17A

Chapter

Chapter 3: Signal Processing and Image Analysis

Section

Imaging and Reconstruction

Pages

799-806

DOI

10.1007/978-1-4615-5339-7_103

Language

en

File Format

application/pdf

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Jan 1st, 12:00 AM

Clear Eddy Current Flaw Image Using Computerized Tomography Inversion Technique

La Jolla, CA

More and more surface probes have been used instead of bobbin coils to detect smaller flaws in eddy current testing. Needs of high accuracy testing have been making eddy current testing use precise scanning of the probes. Flaw imaging has been used in eddy current testing in order to identify small flaws [1–8]. However, the eddy current testing using the conventional pancake coil probe provides only blurred images of flaws. In order to obtain clear flaw images in eddy current testing, the authors first tried to restore clear flaw images from the blurred eddy current testing images using deconvolution method. However, the deconvolution method provided only clear but rather noisy images.