Air core coil as a sensor for harmonic current possesses an excellent dynamic performance. Because the output from the coil is proportional to the time derivative of the current, the obtained result is not connected to direct current.
空心线圈用于直流谐波电流的测量,不受直流分量影响,并具有良好的频率特性。
参考来源 - 光电直流电流及谐波电流互感器的研究·2,447,543篇论文数据，部分数据来源于NoteExpress
空心线圈；电流互感器；印刷电路板。
从此以后，一个更大的电缆运行几次约一空心线圈。
From there, a larger cable is run a few times around a hollow coil.
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。
The finite element model of the air core coil is established and the influential factors of conductor size is analyzed.
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