Title :
Constitutive equation of magnetic materials and magnetic field analysis
Author :
Enokizono, M. ; Yuki, K.
Author_Institution :
Dept. of Electr. & Electron. Eng., Oita Univ., Japan
fDate :
3/1/1993 12:00:00 AM
Abstract :
The constitutive equation of magnetic materials and the associated magnetic field analysis are presented. The B- and H-values have been measured as vector relationships under the influence of a rotating field, using the two-dimensional magnetic measurement apparatus. The magnetic properties are represented by a tensor expression as a function of magnetic reluctivities. This expression is then applied to the rotating field analysis. The off-diagonal terms of the magnetic reluctivity tensor when the axis ratio is 1.0 are antisymmetric. The calculated results with the tensor expression of the H-loop and of the phase difference are in good agreement with the measured results
Keywords :
integro-differential equations; magnetic fields; magnetic flux; magnetic hysteresis; magnetic leakage; magnetic materials; magnetic permeability; tensors; 2D properties; constitutive equation; hysteresis; magnetic field analysis; magnetic field vector; magnetic flux density; magnetic materials; magnetic reluctivities; numerical modelling; permeability; phase difference; rotating field; tensor expression; vector relationships; Equations; Magnetic analysis; Magnetic field measurement; Magnetic fields; Magnetic materials; Magnetic properties; Magnetic variables measurement; Phase measurement; Rotation measurement; Tensile stress;
Journal_Title :
Magnetics, IEEE Transactions on
