Frequency‐Dependence of Relative Permeability in Steel
Frequency‐Dependence of Relative Permeability in Steel
复制标题
钢中相对磁导率的频率依赖性
DOI：
10.1063/1.2184670
复制
发表时间：
2006
期刊：
影响因子：
--
通讯作者：
N. Bowler
中科院分区：
文献类型：
--
作者：
N. Bowler
一项通过基于模型的宽带四点电位降测量技术表征金属板的研究表明，合金1018低碳钢的相对磁导率很复杂，是频率的函数。在大约5 kHz处观察到磁弛豫。松弛可以用参数（科尔-科尔）模型来描述。考虑了影响弛豫的频率、振幅和宽度的因素，例如施加的电流振幅、样品几何形状和无序（例如，碳含量百分比和表面状况）。
A study to characterize metal plates by means of a model‐based, broadband, four‐point potential drop measurement technique has shown that the relative permeability of alloy 1018 low‐carbon steel is complex and a function of frequency. A magnetic relaxation is observed at approximately 5 kHz. The relaxation can be described in terms of a parametric (Cole‐Cole) model. Factors which influence the frequency, amplitude and breadth of the relaxation, such as applied current amplitude, sample geometry and disorder (e.g. percent carbon content and surface condition), are considered.