Title :
Numerical evaluation of ECT impedance signal due to minute cracks
Author :
Fukutomi, Hiroyuki ; Takagi, Toshiyuki ; Tani, Junji ; Hashimoto, Mitsuo ; Shimone, Junri ; Harada, Yutaka
Author_Institution :
Graduate Sch. of Eng., Tohoku Univ., Sendai, Japan
fDate :
3/1/1997 12:00:00 AM
Abstract :
This paper describes an experimental and analytical study on minute crack inspection with eddy current testing (ECT). Measurement and simulation using a 3D FEM program are applied for the evaluation of the detecting signal with a minute crack in a test piece. Parameters such as mesh division, ICCG convergence criteria, etc. are evaluated to achieve high accuracy in numerical calculation. The simulation results agreed with experimental ones
Keywords :
crack detection; eddy current testing; electric impedance measurement; finite element analysis; inspection; signal processing; 3D FEM program; ICCG convergence criteria; detecting signal evaluation; eddy current testing; impedance signal evaluation; mesh division; minute crack inspection; simulation; steam generators; Coils; Eddy current testing; Electrical capacitance tomography; Impedance; Inspection; Materials testing; Numerical analysis; Power generation; Probes; Signal analysis;
Journal_Title :
Magnetics, IEEE Transactions on
