If there is an ac potential difference between the shield and the measuring instrument, there may be capacitive currents flowing through the measuring circuit that will add interference.
如果屏蔽和测量仪器之间存在一个交流电势差，则可能有电容性电流通过测量电路，增大干扰。
2
In order to add the DC model of RTD into SPICE circuit simulator and design RTD circuits, parameters of current-voltage equation were extracted after considering the effect of series resistance.