David,
Thanks a lot!
I was looking to save time and Sebastia's
materials library was exactly what I needed for some directional information.
My results so far have been amazing!
My first prototype (rotational position
sensor) worked as predicted "right out of the box"!!!!
Thank you for this valuable tool!
Best Regards,
Jeff
-----Original Message-----
From: dcm3c@xxxxxxx
[mailto:dcm3c@xxxxxxx]
Sent: Tuesday, August 14, 2001
8:40 PM
To: femm@xxxxxxxxxxxxxxx
Subject: [femm] Re: Permanent
Magnet Modeling
--- In femm@xxxx, afetech@xxxx
wrote:
> Does anyone have models for permanent magnet materials
> other than the ones included. I am particularly interested in
> ferrite and ceramic magnets.
>
> Thank you, in advance.
>
> Jeff Tola
> FE Technical Services
Sebastia Jardi has put up some information on various types of PM materials
(including different grades of ceramic magnets) gathered from several sources
at:
http://www.fut.es/~sje/femmpmm.htm
There are also some manufacturers who have some pdfs with demagnetization
curves for ferrite magnets. These provide more detailed information on
the
magnet properties as well as curves for different temperatures. Group
Arnold
seems to have the most info online about this type of magnet.
http://www.grouparnold.com/products/ferrite/ferrite_catalogs.htm
http://www.grouparnold.com/products/ferrite/pdf/arnoxcat.pdf
http://www.grouparnold.com/products/ferrite/pdf/jmpferritecat.pdf
Also, a pretty neat document I recently ran across is "Permanent Magnet
Guidelines" that contains a lot of great information about permanent
magnets:
http://www.duramag.com/engmach/MMPA%20PMG-88.pdf
Dave Meeker
--
http://members.aol.com/_ht_a/dcm3c