Influences of velocity on signal responses of magnetostatic non-destructive testing tools: a prediction from finite element analysis

Author

Sun, Y.S. ; Lord, W. ; Katragadda, G. ; Shin, Y.K.

Author_Institution

Dept. of Electr. Eng. & Comput. Eng., Iowa State Univ., Ames, IA, USA

Volume

30

Issue

5

fYear

1994

fDate

9/1/1994 12:00:00 AM

Firstpage

3308

Lastpage

3311

Abstract

A 2D finite element study of the influence of velocity on signal responses of electromagnetic non-destructive testing tools is presented in this paper. The Leismann-Frind method is applied to simulate the transient phenomenon of a magnetostatic probe inspection of a defective tube wall. A variable reluctance probe moving in a steel tube is considered. Simulated signal responses, received by sensors located at different points, when the probe passes a defect at different velocities are illustrated. The signals at different sensor positions have different physical phenomena governing them and essentially simulate different EM probe types. The information in these signals could possibly provide information invaluable for defect characterization

Keywords

electromagnetic devices; finite element analysis; magnetostatics; nondestructive testing; probes; EM probe types; Leismann-Frind method; defect characterization; defective tube wall; finite element analysis; magnetostatic nondestructive testing tools; magnetostatic probe inspection; physical phenomena; signal responses; transient phenomenon; variable reluctance probe; Finite element methods; Geometry; Magnetic field measurement; Magnetic sensors; Magnetostatics; Motion measurement; Nondestructive testing; Position measurement; Probes; Sensor phenomena and characterization;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.312645

Filename

312645