在有些应用中，例如监测电化电池和测量半导体的电阻系数，则可能必须进行高阻抗电压切换。
High impedance voltage switching may be necessary in applications such as monitoring electrochemical cells and measuring semiconductor resistivity.
因为它的阻抗增加它的电压降落增加，虽然小可能被测量没有困难。
As its resistance increases its voltage drop increases and though small can be measured without difficulty.
数字式电压表通常有10兆欧的输入阻抗。当测量高阻抗电路时﹐可能会有影响。
DVM usually got an input impedance of 10 Mohm. There may be loading effect when measuring high impedance circuit.
在一个实例中，所述检测器测量开关电压，以及所述估计电路根据开关电压和该开关的两个节点之间的阻抗来估计输送到负载的功率。
The detectors in one example measure switch voltages and the estimation circuit estimates power delivered to the load according to a switch voltage and impedance between two nodes of the switch.
说明了阻抗继电器是建立在测量阻抗概念上的一类继电器；距离继电器是建立在补偿电压特点基础上的一类继电器。
It shows that impedance relay is a kind of relay based on the concept of measuring impedance and distance relay is a relay which is typical of compensating voltage.
测量了该管的色散特性、同步电压、耦合阻抗等高频特性参数，测量结果与模拟值相一致。
The dispersion characteristic, the synchronous voltage and the interaction impedance of this S-band CCTWT are measured.
本装置采用专用芯片，实现多种电压等级全范围等精度测量，同时输入阻抗高，不影响原车的绝缘状况；
It use special chip to realize full-range and equal observations for different voltage rate, without additional insulation faults for high input impedance .
用电能计量仪表同时测量电力设备接口处电压信号和电流信号的能量，可以计算出设备的等值阻抗。
A novel measuring method of electric network impedance based on the energy function of port signals is described, and its application in electric power equipment is discussed.
研究进一步提高测量系统灵敏度的方法，设计高输入阻抗的电压跟随电路。
The methods for increasing the sensitivity of the measurement system were studied and the voltage follower based on operational amplifier was designed.
采用计算机辅助接地阻抗测量设备 ，可以克服传统的电压降测量法的种种弊端。
This paper makes a study on principles of grounding impedance measurement and derives the formula for calculating grounding impedance.
采用计算机辅助接地阻抗测量设备 ，可以克服传统的电压降测量法的种种弊端。
This paper makes a study on principles of grounding impedance measurement and derives the formula for calculating grounding impedance.
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