The finite element model of the aircorecoil is established and the influential factors of conductor size is analyzed.
建立空心线圈的有限元模型，对线圈尺寸影响因素进行了分析。
2
If a coil has no metal core it has an air core.
如果线圈没有金属芯子，它就有一个空气芯子。
3
This paper introduces the principle and characteristic of the air-corecoil current transformer, designs AC-sampling and processing circuit, and introduces the process of software detail.