Numerical Simulations of Portable Systems for Motion-Induced Eddy-Current Testing

This article presents two realizations of portable systems for motion-induced eddy-current testing using the rotational movement of permanent magnets (absolute and differential). The methodology of calculations using a quasi-stationary and transient approach in the finite-element method (FEM) is des...

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Bibliographic Details
Published in:IEEE transactions on magnetics 2020-01, Vol.56 (1), p.1-4
Main Authors: Ziolkowski, Marek, Otterbach, Jan-Marc, Schmidt, Reinhard, Brauer, Hartmut, Toepfer, Hannes
Format: Article
Language:English
Subjects:
Coils
Computer simulation
Eddy current testing
Eddy currents
Finite element analysis
Finite element method
Induced voltage
Magnetic domains
Magnetism
Mathematical analysis
Mathematical model
Motion-induced eddy currents
Movement
non-destructive testing
Numerical simulation
Permanent magnets
Pickup coils
Testing
Voltage measurement
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Description
Summary:This article presents two realizations of portable systems for motion-induced eddy-current testing using the rotational movement of permanent magnets (absolute and differential). The methodology of calculations using a quasi-stationary and transient approach in the finite-element method (FEM) is described in detail. Different procedures for calculating the induced voltage in the pick-up coils are also presented. Finally, the results of the measurements and the corresponding numerical simulations are analyzed.
ISSN:0018-9464
1941-0069
DOI:10.1109/TMAG.2019.2950462