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# Re: [femm] Eddy currents and Back EMF in FEMM

- To: femm@egroups.com
- Subject: Re: [femm] Eddy currents and Back EMF in FEMM
- From: dcm3c@aol.com
- Date: Wed, 20 Sep 2000 11:21:04 EDT

    In a message dated 9/14/00 11:52:46 AM Eastern Daylight Time,
    machmad@hrtextron.textron.com writes:

    > I like to know how do you take into account eddy currents and back emf in
    > femm or is this something that is out of context of the program. I am
    > interested in applying it to the moving core magnetic circuit. Any sample
    > program file would help.

    The problem can handle fixed configurations with sinusoidally varying
    currents, but not motion. For problems with motion, I have used femm to
    derive parameters which then can be included an a lumped-parameter transient
    model that includes motion.

    > Also is there a new release of FEMM?

    I am putting up beta versions in the files section of egroups:
    http://www.egroups.com/files/femm/

    I'm hoping to release a version 3 sometime soon, but I've been distracted
    with other stuff lately and haven't finished it up yet.

    Dave.
    --
    http://members.aol.com/dcm3c

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