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http://dx.doi.org/10.4283/JKMS.2014.24.4.107

Verification of Optimum Degaussing Technique through the Mock-up Test of a Ship  

Kim, Dong-Wook (Department of Electrical Eng., Kyungpook National University)
Choi, Nak-Sun (Department of Electrical Eng., Kyungpook National University)
Kim, Dong-Hun (Department of Electrical Eng., Kyungpook National University)
Yang, Chang-Seob (The 6th R&D Institute - 2, Agency for Defense Development)
Chung, Hyun-Ju (The 6th R&D Institute - 2, Agency for Defense Development)
Publication Information
Journal of the Korean Magnetics Society / v.24, no.4, 2014 , pp. 107-113 More about this Journal
Abstract
In this paper, a optimum degaussing technique, which can minimize an underwater magnetic field anomaly generated by the ferromagnetic hull, was verified through the mock-up test of a ship. To predict degaussing field signals due to the degaussing coils installed in a ship, individual coil effects were measured. Exploiting the linearity of coil effects and analytical sensitivity formula, optimum degaussing current values fed to individual coils were decided. To identify degaussing performance of the proposed method, the obtained degaussing currents were applied to the coils. Then the field anomaly signals were measured and analyzed before and after degaussing. Experimental results show the magnitude of the field signal after degaussing is reduced up to 95% of that before degaussing.
Keywords
sensitivity; degaussing; inverse problem; magnetic field; magnetization;
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  • Reference
1 C. Yang, Ph. D. Thesis, Kyungpook National University, Korea (2008).
2 O. Chadebec, J. Coulomb, J. Bongiraud, G. Cauffet, and P. Thiec, IEEE Trans. Magn. 38, 1005 (2002).   DOI   ScienceOn
3 J. Holmes, Exploitation of a Ship's Magnetic Field Signatures, Morgan & Claypool (2006).
4 Y. Vuillermet, O. Chadebec1, J. Coulomb, L. Rouve, G. Cauffet, J. Bongiraud, and L. Demilier, IEEE Trans. Magn. 44, 1054 (2008).   DOI   ScienceOn
5 H. Liu and Z. Ma, Int. Conf. Mechatronics and Automation, 3133 (2007).
6 N. Choi, G. Jeung, S. Jung, C. Yang, H. Chung, and D. Kim, IEEE Trans. Magn. 48, 419 (2012).   DOI   ScienceOn
7 D. Kim, J. Sykulski, and D. Lowther, IEEE Trans. Magn. 41, 1404 (2005).   DOI   ScienceOn
8 K. Lee, G. Jeung, C. Yang, J. Park, H. Kim, and D. Kim, IEEE Trans. Magn. 45, 1478 (2009).   DOI   ScienceOn
9 N. Choi, G. Jeung, S. Jung, C. Yang, H. Chung, and D. Kim, IEEE Trans. Magn. 22, 4904504 (2012).
10 J. Holmes, Reduction of a Ship's Magnetic Field Signature, Morgan & Claypool (2008).