Decreasing the granularity of magnetic powder can increase the quality factor of magnetic powder core.

随着磁粉粒度的减小，磁粉芯品质因数增大。

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Increasing the granularity of magnetic powder and shaping pressure can increase the permeability of magnetic powder core.

随着磁粉粒度及成型压力的增大，磁粉芯的磁导率增大。

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High voltage simulation tests were performed on the magnetic rings of three kind materials, i. e. ferrite, amorphous and microcrystalline and metallic magnetic powder core.

通过高电压模拟试验，观测了铁氧体、非晶磁芯和金属磁粉芯三种材料的磁环，特别观测了磁饱和的影响。

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