【摘要】 在 f=0 .3～ 10 3kHz和Bm =0 .0 5～ 1.0T的范围内 ,考查了具有高起始磁导率的纳米晶合金的每周损耗频率关系。结果表明 ,在 f =0 .3～ 30kHz和Bm ≤ 0 .8T的范围内 ,惯用的损耗分离原则是适用的 ,可用Bertotti的统计理论描述P/f—f行为 ;对于Bm =1T ,这种描述在直到150kHz的范围内都适用。大约在 30kHz的高频区和 Bm ≤ 0 .8T的范围内 ,不能采用惯用的损耗分离法 ,P/f—f行为可用线性方程P/f =Peh+Keclf来描述。这种描述对于Bm =1T的行为也很好地适用更多还原

【Abstract】 In the range of f=0.3～103 kHz and B m=0.05～1.0T, the frequency dependences of the total power losses per cycle have been investigated for the nanocrystalline alloy with high initial permeability. The results shown that the principle of loss separation used consistently is applicable and the bahavior of P/f vs f can be described by using Bertotti’s statistical theory in the range of f=0.3～30kHz and B m≤0.8T. This description applies in the case of B m=1T in the range up to 150kHz. In case of above 30kHz and B m≤0.8T, the habitual method of loss separation is not applicable then the behavior of P/f vs f can be described by using linear equation P/f=P eh +K ecl f. Such description also applies in case of B m=1T.更多还原