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[FEMM] Humblest appologies!!

David et al.
 
Please all accept my humblest apologies for my earlier email I was being hassled at the time by another person and I made some very serious mistakes!!
 
It should have read;
Think you'll find all you want and more via Hitachi magnet spec sheets without duplicating their work!  Their range is extensive.
 
Also if anybody is interested in full 3D Electromagnetic work I have Cosmos EMS, which is full 3D (though my skills/knowledge/EXPERIENCE are definitely far beLOW Dr. Meeker's)
 
Jeremy
----- Original Message -----
Sent: Saturday, April 03, 2004 10:33 AM
Subject: Re: [FEMM] Magnetization curves

Hi guys
 
Think you'll fin all you want and more via Hitachi magnet spec sheets without duplicating their work!  Their range is extensive.
 
Also if anybody is interested in full 3D Electromagnetic work I have Cosmos EMS, which is full 3D (though my skills knowledge are definitely far beyond Dr. Meeker's)
 
Jeremy
 
 
----- Original Message -----
Sent: Friday, April 02, 2004 3:32 PM
Subject: RE: [FEMM] Magnetization curves

Hello
NdFeB has linear magnetic characteristic with relative permeability around
1,05. Hc depends on used material.
Producers provides B and Hc and you can calculate relative permeability from
that.
This is for cold magnets, with temperature  the characteristic change, but I
calculate with linear characteristic reduced about 10% of the Hc.
B reduces  about 12% per 100C for NdFeB.

Take a look for example:
http://www.vacuumschmelze.de/dbw/public_vac/Homepage_en/$pages/Dauermagnete_
startold

Jiri Vecerka

> [mailto:femm-bounces@xxxxxxxxxxxxxxxxxxxxxx]On Behalf Of
> agnaldo@xxxxxxxxxx
> Sent: Friday, April 02, 2004 6:20 AM
> Subject: [FEMM] Magnetization curves
>
> David, thanks for your answer about the vector potentia XY plot,
> it was very
> usefull to me.
> Now I ask, once more, the FEMM people colaboration about another
> problem; does
> anybody has (or knows how to find)B(H) cuerves for NdFeB and SmCo5? The
> caracteristics that are im FEMM data bank doesn´t agree with my
> experimental
> results.
>                                 Thanks in advance.
>                                                     Agnaldo

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