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논문 기본 정보

자료유형
학술저널
저자정보
Yongmin Kim (Kyungsung University) Young-Hak Kim (Pukyong National University) Kwang-Ho Shin (Kyungsung University)
저널정보
한국자기학회 Journal of Magnetics Journal of Magnetics Vol.18 No.3
발행연도
2013.9
수록면
326 - 330 (5page)

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초록· 키워드

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Magnetic treatment of surface vessels and submarines (Deperm) is required to camouflage them against magnetic detection from enemy marine force. So far, deperm has been accomplished by applying an alternating magnetic field of which amplitude decreases linearly. However, the reduction of the residual flux density in the direction of magnetic field is not linear in the case of the linear protocol, since the ferromagnetic material used to construct a surface vessel, mainly Fe-C, shows a nonlinear behavior in an alternating magnetic field. This is one of main reasons to make an ordinary deperm protocol inefficient. In this paper, we propose the exponential deperming protocol and compare the exponential protocol to conventional linear protocol within the framework of deperm performance. We found out that step number could be reduced in the exponential protocol compare with in the linear protocol, because the larger numbers of deperm steps are dedicated in the irreversible domain process region on the magnetic hysteresis.

목차

1. Introduction
2. Proposal of Exponential Protocol
3. Results and Discussions
3. Conclusion
References

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