A NOTE ON BEHAVIOUR OF NON-LINEAR DEPENDENCE OF LOW FREQUENCY LOSS UPON FREQUENCY FOR AMORPHOUS ALLOYS

The behaviour of non-linear dependence of low frequency loss upon frequency has been approached on the basis of the analysis of low frequency loss curves for two types of amorphous alloy. The loss curves were analyzed and calculated by introducing two non-linear losses: the thermal fluctuation magnetic after effect and the micro-eddy current loss. The results show that the non-linearity is mainly attributed to a thermal fluctuation magnetic after effect and a numerical variation of the magnetic domain with frequency.