Analytical solution for impedance change due to flaws in eddy current testing

Green's function is used in order to derive the analytical solution for the change in impedance due to a presence of the flaws in a conductor. This solution is applied to a cylindrical flaw and a spherical flaw whose radii are much smaller than the radius of the test coil. For both cases, the c...

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Bibliographic Details
Published in:Journal of nondestructive evaluation 1984-12, Vol.4 (3/4), p.197-202
Main Authors: YI, J, LEE, S
Format: Article
Language:English
Subjects:
Analysing. Testing. Standards
Applied sciences
Exact sciences and technology
Metals. Metallurgy
Nondestructive testing
Testing for defects
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Summary:Green's function is used in order to derive the analytical solution for the change in impedance due to a presence of the flaws in a conductor. This solution is applied to a cylindrical flaw and a spherical flaw whose radii are much smaller than the radius of the test coil. For both cases, the change in impedance is obtained within Born's limit.
ISSN:0195-9298
1573-4862
DOI:10.1007/BF00566224