Title :
Application of a perturbation method to the solution of eddy current testing problems
Author :
Antimirov, M.Ya. ; Kolyshkin, A.A. ; Vaillancourt, Ré;mi
Author_Institution :
Dept. of Appl. Math., Riga Tech. Univ., Latvia
fDate :
5/1/1994 12:00:00 AM
Abstract :
This paper presents an analytical solution for the change of the impedance of a double conductor line due to eddy currents induced in presence of an infinitely long horizontal cylindrical flaw with vertically symmetric cross-section. The solution, found by a perturbation method, is applicable in the case the conductivities of the flaw and of the surrounding material do not differ by much. Numerical results for flaws of circular and elliptic cross-sections are presented
Keywords :
eddy current testing; flaw detection; inverse problems; perturbation techniques; circular cross-sections; double conductor line; eddy current testing problems; elliptic cross-sections; infinitely long horizontal cylindrical flaw; inverse problem; perturbation method; vertically symmetric cross-section; Conductivity; Conductors; Eddy current testing; Eddy currents; Impedance; Inverse problems; Mathematics; Perturbation methods; Probes; Welding;
Journal_Title :
Magnetics, IEEE Transactions on
