Hi,
Just curious, but is a North pole
the same field as emanates from the Earth’s North pole, or the field that comes
from a compass’ North pointing end?
Thanks
Adrian
-----Original
Message-----
On Behalf Of David Meeker
Sent: 12 June 2001 23:07
To: femm@xxxxxxxxxxxxxxx
Subject: [femm] Re: FEMM
simulations errors ??
The way to see this is to think of each magnet as being composed of 2
point poles of strength Q. For a N pole, the force on the pole is
B*Q, where B is the flux density created by the stator permanent
magnets. For a S pole, the force is -B*Q. When you look at it
this
way, you can see that the vertical force should be zero, and there
should be a net horizontal force to the right. One reference for this
trick is M. Lindeburg's "Engineer in Training Review Manual, 6th
ed.,"
1982.
Dave Meeker
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