摘要
Widely used soft magnetic alloy 1J79 is a magnetic material with high permeability.Generally, it works under the conditions of frequency f=100—10000 Hz and magnetic induction B_m=0.1—0.7 T; thus the total core loss P is an important index reflecting its magnetic properties. In engineering applications, when a soft magnetic alloy which has a permeability of μ【5000 works in a frequency of f【100Hz and at a B_m=0.2—1.5T, its P can be described by the following empirical formula:
