Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6758353 | NDT & E International | 2015 | 9 Pages |
Abstract
This paper presents the design of an eddy current testing probe for inspection of non-conductive glass fiber reinforced plastics. Because the magnetic field contains information pertaining to the permittivity of materials under test, eddy current testing offers the possibility of flaw detection in non-conductive materials through detection of the difference in permittivity between the intact part and the defective part of each material. We analytically investigated the design of a probe suitable for dielectric constant measurements. Experimental studies proved that the proposed probe can detect slit defects and flat-bottomed holes located 2Â mm away from the surface of the glass fiber reinforced plastic samples.
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Authors
Koichi Mizukami, Yoshihiro Mizutani, Akira Todoroki, Yoshiro Suzuki,