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2008 | 113 | 1 | 67-70
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Modelling of the Magnetic Characteristics of Isotropic and Anisotropic Materials for Sensor Applications

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The following paper presents the results of modelling of the magnetic characteristics of isotropic (Ni-Zn ferrite) and anisotropic material (Fe_{40}Ni_{38}Mo_4B_{18} amorphous alloy in as quenched state), both useful for sensor applications. For the modelling an extended Jiles-Atherton model was used. Extension of the model connects model's parameter k, describing average energy required to break pinning site, with magnetic state of the material. Such extension of the model is reasonable from the physical point of view. Good agreement between experimental data and modelling confirms that the extended Jiles-Atherton model creates the possibility of modelling of magnetic characteristics of both isotropic and anisotropic magnetic cores.
  • Institute of Metrology and Measuring Systems, Warsaw University of Technology, św. A. Boboli 8, 02-525 Warsaw, Poland
  • Industrial Research Institute for Automation and Measurements, Al. Jerozolimskie 202, 02-486 Warszawa, Poland
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