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# Permanent magnets

- To: femm@yahoogroups.com
- Subject: Permanent magnets
- From: steudner@surfeu.de
- Date: Tue, 22 Jan 2002 12:57:41 +0100

    Dear all,

    I want to solve the problem with a metal disk rotating
    in the air gap of a magnet. In a first step I want to
    show the flux-density in the neighbourhood of a permanent
    magnet. I added to the properties of a block the properties
    of a material from the library connecting SmCo. The results
    for a 25x13x3 permanent magnetized in the direction of 90
    degrees to the 25x13 plane show in the 25x3 cross-section
    high density only near the 3 mm sides. I think that this
    is not real and connected with the model of permanent
    magnets used in the program and showed in figure 31 of the
    users manual. Is that right? What can I do, to obtain better
    results for permanent magnets?

    Regards
    Reinhold Steudner

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