Contactless measurement of electrical resistivity by eddy current methods: discussion and a new technique
Contactless measurement of electrical resistivity by eddy current methods: discussion and a new technique
复制标题
涡流法非接触式电阻率测量：讨论和新技术
DOI：
10.1088/0022-3735/7/5/027
复制
发表时间：
1974
期刊：
影响因子：
--
通讯作者：
V. Tomar
中科院分区：
文献类型：
--
作者：
W. Wejgaard;V. Tomar
从线性系统理论出发，对涡流衰减法和交流稳态法进行了比较。理论上，两种方法是等效的，但从实验考虑，AC方法是最好的，但极低的电阻率值。介绍了基于相位角测量的AC方法的简化版本。一次相角测量就足以确定电阻率的绝对值。
The eddy current decay and the AC (steady-state) methods of contactless electrical resistivity measurement are compared in terms of linear system theory. Theoretically both methods are equivalent, but from experimental considerations the AC method is preferable for all but extremely low resistivity values. A simplified version of the AC method based on a phase angle measurement is described. One single phase angle measurement suffices to determine the absolute value of resistivity.