Title :
Electromagnetic field diffusion in ferromagnetic materials
fDate :
4/1/1978 12:00:00 AM
Abstract :
The diffusion of electromagnetic fields under pulse excitation in ferromagnetic materials is investigated using finite-difference techniques. The nonlinearity of the magnetisation curve is taken into account, and special attention is given to high saturation. The diffusion in the semi-infinite space is studied for various waveshapes and for different field intensities. For electromagnets with rotational symmetry, flux-density distributions and eddy-current losses are computed.
Keywords :
eddy currents; electromagnetic fields; electromagnets; ferromagnetism; magnetisation; eddy current losses; electromagnets; ferromagnetic materials; flux density distribution; magnetisation curve; nonlinearity; pulse excitation;
Journal_Title :
Electrical Engineers, Proceedings of the Institution of
DOI :
10.1049/piee.1978.0071
