Ground planes solve many groundimpedance problems, but not all.
接地面虽能解决地线阻抗的问题，但不是万能的。
2
This paper has presented a new method of measuring groundimpedance by generating impulse current signal .
本文提出了利用发出冲击电流信号测量接地阻抗的新方法。
3
The methods are able to compute any parameter of grounding grids in power current, such as power groundimpedance, touch and step voltage, potential differences within grounding grids and so on.