The magnetization and demagnetization module has been developed
specifically to model the magnetization process for hard magnetic
materials. The simulation records the progress of the material
magnetization along the virgin characteristic, until the
magnetizing field starts to reduce. Secondary 'demagnetization'
characteristics are then used to determine the remnant
magnetization vector when the magnetization process is complete. In
both the magnetization and demagnetization processes, the effect of
eddy currents and circuit transients are captured.
The result is a magnetized sample, where the magnetization
distribution is correctly defined. This can then be used in other
simulations to model the performance of the magnetized sample in
its designated application (eg. an electrical machine).
During the simulation of the application further demagnetization
and remagnetization of the sample in the application device due to
the presence of current sources can also be modelled.