Numerical simulation and design of a fluxset sensor by finite element method

Author

Preis, K. ; Bardi, I. ; Biro, O. ; Richter, K.R. ; Pavo, J. ; Casparics, A. ; Ticar, I.

Author_Institution

Tech. Univ. of Graz, Austria

Volume

34

Issue

5

fYear

1998

Firstpage

3475

Lastpage

3478

Abstract

A 3D model of a fluxset sensor serving to measure the magnetic fields arising in eddy current nondestructive testing applications is analyzed by the finite element method. The voltage induced in the pick-up coil is obtained by computing the flux of the core of the sensor for several values of the exciting current at various external fields. It is shown that the time shift of the ensuing voltage impulse depends linearly on the external field in a wide range. The behavior of the sensor is furthermore simulated in a real nondestructive testing arrangement consisting of an exciting coil located above a conducting plate with a crack.

Keywords

eddy current testing; finite element analysis; magnetic cores; magnetic field measurement; magnetic fields; magnetic flux; magnetic sensors; nondestructive testing; 3D model; eddy current nondestructive testing; exciting coil; finite element method; fluxset sensor; magnetic fields measuring; numerical design; numerical simulation; pick-up coil; sensor core flux; Coils; Current measurement; Eddy currents; Finite element methods; Magnetic analysis; Magnetic field measurement; Magnetic sensors; Nondestructive testing; Numerical simulation; Voltage;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.717819

Filename

717819