In most cases, permanent magnet regions are defined with a constant magnetization direction
for the entire region, as described in thePermanent Magnet Example. However,
especially for
the case of surfacemount
permanent magnet motors, a magnetization direction that varies
throughout the volume is desired. Specifically, one sometimes desires to define a radial
magnetization direction. The purpose of this note is to explain how to define a radial
magnetization direction in FEMM.