摘要
首先推导了矩形感应线圈的磁感应强度空间分布解析表达式,通过数值仿真分析磁感应强度沿各轴向的变化趋势和磁场空间分布特性,指出现有标准定义的3 dB试验区域内存在12个磁感应强度基准偏差超出±3 dB的缺陷区域,并对分析结果进行实验验证。
Firstly,the analytical expressions of magnetic field spatial distribution in rectangular inductive coil are deduced.The variation trend of magnetic induction strength variation along different axial directions and the spatial distribution characteristics of magnetic field are analyzed by numerical simulation.It is pointed out that there are 12 defective areas in the 3 dB test area defined by the existing standard where the reference deviation of magnetic induction intensity exceeds ±3 dB.The results are experimentally verified.
出处
《安全与电磁兼容》
2019年第1期59-62,67,共5页
Safety & EMC
