Influence of current heating on effective permeability of Co-based and Fe-based soft magnetic amorphous alloy ribbons;

The properties of frequency,DC bias,effective permeability and quality factor were investigated.

The effect of process parameters on the quality factor and effective permeability of FeSiAl magnetic powder core has been studied in terms of powder sizes, mount of insulation binder, cooling conditions and temperatures of heat treatment.

Effective magnetic permeability of Fe-based metal glass Fe_(36)Co_(36)B_(20)Si_4Nb_4 as mutual iron core was measured using mutual induction method.

Relations between effective magnetic permeability of body-centered cubic,face-centered cubic and simple cubic lattices of conducting spheres and ratio of magnetic permeability,frequency are studied.

It is pointed out that the equivalent permeability and permittivity of honeycomb-structured absorbing materials are smaller than those of the absorbing layer,but the equivalent permittivity is reduced more significantly,so the equivalent permeability is more close to the equivalent permittivity.

The effective permeability and permittivity tensors are calculated,the dispersive curv.

The results show that the effective permittivity and effective permeability of the composite medium are negative simultaneously in C-band frequency region, and therefore ind.

In this paper, according to the law of electromagnetic induction, the device measuring the equivalent susceptibility of metals was designed, which can real-time measure the change of the equivalent susceptibility of liquid metals during the cooling process.