A Method for Parameter Identification of Thin Permanent Magnets at Higher Frequency and Temperature Ranges

In this paper, a method is presented to determine the main characteristic parameters of permanent magnets, i.e., the remanence and the permeability in the linear operating range. Since the samples are thin in the direction of magnetization and since they have also been characterized at higher excita...

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Bibliographic Details
Published in:IEEE transactions on magnetics 2015-10, Vol.51 (10), p.1-6
Main Authors: Perchtold, Dominik, Husstedt, Hendrik, Kaltenbacher, Manfred
Format: Article
Language:English
Subjects:
Coils
computational electromagnetics
Current measurement
Equivalent circuits
Magnetic cores
Magnetic permeability
Magnetism
Magnetization
Operating temperature
Parameter identification
permanent magnet
Permanent magnets
Permeability
Remanence
Saturation magnetization
Temperature measurement
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Summary:In this paper, a method is presented to determine the main characteristic parameters of permanent magnets, i.e., the remanence and the permeability in the linear operating range. Since the samples are thin in the direction of magnetization and since they have also been characterized at higher excitation frequencies, a standard method is not applicable. Therefore, we present an application-oriented approach, where the linear range can be determined up to higher frequencies and which covers the nominal operating temperature range of the samples. The permeability is measured directly, whereas the remanence is determined by utilizing a magnetic equivalent circuit.
ISSN:0018-9464
1941-0069
DOI:10.1109/TMAG.2015.2447495