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Takahashi, Norio Okayama University
Kayano, Takeshi Okayama University
Miyata, Koji Shin-Etsu Chemical Corporation Limited
Ohashi, Ken Shin-Etsu Chemical Coporation Limited
A modeling technique of the minor loop using typical hysteresis loops is shown. The effect of the minor loop and eddy current in the pole piece of a permanent magnet type of MRI on the residual flux density of the probe coil is examined. It is illustrated that the change ΔB of residual flux density occurs due to the minor loop of the pole piece. It is also pointed out that the choice of time interval Δt is important in a nonlinear analysis considering the minor loop
finite element analysis
Digital Object Identifier: 10.1109/20.767404
Published with permission from the copyright holder. This is the institute's copy, as published in Magnetics, IEEE Transactions on , May 1999, Volume 35, Issue 3, Part 1, Pages 1893-1896 .
Copyright © 1999 IEEE. All rights reserved.