Evaluation by means of magneto-acoustic emission and Barkhausen effect of time and space distribution of magnetic flux density in ferromagnetic plate magnetized by a C-core

Experimental results are shown of magneto-acoustic emission (MAE) and Barkhausen effect (BE) for two ferritic steel plates of different dimensions. The paper presents preliminary results of modelling the MAE, based on the finite element method (FEM), taking into account the key role of the eddy curr...

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Bibliographic Details
Published inJournal of magnetism and magnetic materials Vol. 304; no. 2; pp. e552 - e554
Main Authors Augustyniak, Marek, Augustyniak, Bolesław, Piotrowski, Leszek, Chmielewski, Marek, Sadowski, Wojciech
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.09.2006
Subjects
Barkhausen effect
Eddy currents
Finite element method
Magneto-acoustic emission
75.60.Ej
Finite element method
75.50.Bb
Magneto-acoustic emission
85.70.Ec
81.70.Ex
Barkhausen effect
Eddy currents
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Summary:Experimental results are shown of magneto-acoustic emission (MAE) and Barkhausen effect (BE) for two ferritic steel plates of different dimensions. The paper presents preliminary results of modelling the MAE, based on the finite element method (FEM), taking into account the key role of the eddy currents. Explanations are suggested as to the effects of MAE peak maximum growth, shift, as well as the characteristic BE profiles at the bottom of the large plates.
ISSN:0304-8853
DOI:10.1016/j.jmmm.2006.02.269