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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
In the range of f = 0 .3 ~ 10 3kHz and Bm = 0. 05 ~ 1.0T, the relationship between the weekly loss frequency of nanocrystalline alloys with high initial permeability was investigated. The results show that the conventional loss separation principle is suitable for the range of f = 0 .3 ~ 30 kHz and Bm ≤ 0. 8T, and Bertotti’s statistical theory can be used to describe the P / f-f behavior. For Bm = 1T, The description is valid up to 150kHz. Approximately in the high frequency region of 30 kHz and the range of Bm ≤ 0.8T, the conventional loss separation method can not be used and the P / f-f behavior can be described by the linear equation P / f = Peh + Keclf. This description also works well for the behavior of Bm = 1T