Title :
Identification of crack depths from eddy current testing signal
Author :
Fukutomi, Hiroyuki ; Huang, Haoyu ; Takagi, Toshiyuki ; Tani, Junji
Author_Institution :
Inst. of Fluid Sci., Sendai, Japan
fDate :
9/1/1998 12:00:00 AM
Abstract :
This paper demonstrates the identification of crack depths using signals obtained from eddy current testing (ECT). The identification method is based on finite elements with the pre-computed unflawed database approach and a meshless crack representation technique, and parameter estimation in nonlinear problems. Four different cracks are estimated by using laboratory data
Keywords :
crack detection; eddy current testing; finite element analysis; inverse problems; parameter estimation; crack depths; eddy current testing signal; finite elements; identification method; meshless crack representation technique; parameter estimation; pre-computed unflawed database approach; Databases; Eddy current testing; Eddy currents; Electrical capacitance tomography; Finite element methods; Integral equations; Laboratories; Magnetic domains; Magnetic materials; Signal processing;
Journal_Title :
Magnetics, IEEE Transactions on
