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http://dx.doi.org/10.4283/JKMS.2013.23.2.054

A Study on the Deperm of Ferromagnetic Material using Preisach Model  

Ju, Hye Sun (Dept. of Electrical Engineering, Pusan National University)
Park, Gwan Soo (Dept. of Electrical Engineering, Pusan National University)
Won, Hyuk (Korea Marine Equipment Research Institute)
Publication Information
Journal of the Korean Magnetics Society / v.23, no.2, 2013 , pp. 54-61 More about this Journal
Abstract
Ferromagnetic material's residual magnetization is remained because of the interaction between domains from external apply field, so the electrical and electronic industry and area of defense development request deperm protocol which makes the residual magnetization to 0. But the deperm protocols which are used theses days are developed by using only experience and experiment, so we have to develop deperm protocol considering hysteresis curve. In this paper, Anhysteretic Deperm, Deperm-ME, Flash-Deperm were analyzed using two dimensional finite element method and Preisach model that was formulated by property of magnetic materials. From that analysis, the relations between hysteresis curve and deperm variable are compared by analyzing the trace of Preisach plane. Also, an efficient current ratio of deperm protocol, is proposed.
Keywords
Deperm; Ferromagnetic material; Preisach model; Anhysteretic Deperm; Deperm-ME; Flash-D Deperm; FEM;
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