ANALYTICAL DESCRIPTION OF THE LIMITING HYSTERESIS LOOP OF A FERROMAGNETIC BODY

The analytical relationships for describing sections of the limiting h ysteresis loop of the ferromagnetic body are analyzed. Taking into acc ount the approximation [24] of the symmetric hysteresis loop of a ferr omagnetic material in relation to the internal field of she body and i ts magnetization and the strength of the external field, the authors d erive an analytical expression for a complete description of the limit ing hysteresis loop of the ferromagnetic body. The effect of the dimen sions of the cylinders made of different materials on the shape of the hysteresis loop is analyzed. The dimensions of cores ensuring the max imum differential permeability in the given demagnetizing field are ca lculated.