Journal of Magnetics

  • 제19권1호
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  • Pages.43-48
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  • 2014
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  • 1226-1750(pISSN)
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  • 2233-6656(eISSN)
한국자기학회 (The Korean Magnetics Society)
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A Study on the Deperm Protocols Considering Demagnetizing Field of a Ferromagnetic Material

  • Ju, Hye Sun (Department of Electrical Engineering, Pusan National University) ;
  • Won, Hyuk (Korea Marine Equipment Research Institute) ;
  • Chung, Hyun Ju (The 6th R&D Institute-3, Agency for Defense Development) ;
  • Park, Gwan Soo (Department of Electrical Engineering, Pusan National University)
  • 투고 : 2013.09.23
  • 심사 : 2014.03.14
  • 발행 : 2014.03.31
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초록

Magnetic materials with large coercive force and high squareness ratio are currently developing to meet an industrial demand. Since a ferromagnetic material has hysteresis characteristics, it is hard to demagnetize a ferromagnetic material precisely. In this paper, we describe deperm processes and conduct an analysis of residual magnetization of ferromagnetic material using the Preisach modeling with a two-dimensional finite elements method (FEM). From the results, it was shown that an exponential decrement form of deperm protocol is more efficient than a linear decrement form because of the demagnetizing field in the ferromagnetic material.

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참고문헌

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피인용 문헌

  1. Efficient Deperming Protocols Based on the Magnetic Properties in Demagnetization Process vol.51, pp.11, 2015, https://doi.org/10.1109/TMAG.2015.2436703
  2. Demagnetization Scheme for Avoiding Magnetic Mines Under the Exposure of Earth Magnetic Field vol.54, pp.3, 2018, https://doi.org/10.1109/TMAG.2017.2764531