Journal of Magnetics

The Korean Magnetics Society (한국자기학회)
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Demagnetization Performance According to Vertical and Horizontal Magnetic Bias Fields

  • Kim, Young-Hak (Department of Electrical Engineering, Pukyong University) ;
  • Kim, Ki-Chan (Department of Electrical Engineering, Pukyong University) ;
  • Shin, Kwang-Ho (Department of Electronics and Information Communication Engeering, Kyungsung University) ;
  • Yoon, Kwan-Seob (Maritime R&D Lab., LIGnex1 Co., Ltd.) ;
  • Yang, Chang-Seob (Agency for Defense Development)
  • Received : 2011.10.06
  • Accepted : 2011.10.24
  • Published : 2011.12.31
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Abstract

Demagnetization for a tube sample which was made of a galvanized steel sheet was performed by applying a magnetic field with a decrement to remove the remanent magnetization of the material. An orthogonal fluxgate magnetic field sensor was used to measure a magnetic field created from a ferromagnetic material. To evaluate the remanent magnetization, the measured magnetic fields were separated into two magnetic field components by the remnant magnetization and the induced one. The horizontal and the vertical bias fields should be controlled separately during demagnetization to remove the horizontal and the vertical components of the remanent magnetization of the tube sample.

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References

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