Theoretic model and numerical computation of coil impedance of ferrite-cored eddy current sensor;
含铁氧体磁芯的电涡流传感器线圈阻抗理论模型和数值计算
Secondly, the relationship between the coil impedance and its liftoff for different materials are obtained using separation of variables and numerical calculation methods.
为考察电涡流传感器中等效电路的适用性,本文从被测体材料角度出发,在分析等效电路基础上,采用分离变量法和数值计算法,得到不同被测材料下探头线圈阻抗与提离高度的关系,并与从等效电路得出的结论比较,确定等效电路的适用性,同时考察被测体厚度对线圈阻抗的影响,最后对得出的结论进行理论分析。