meter to measure electrostatic voltage differences; draws no current from the source
例句
用作名词(n.)
Refer to the instrument's instruction manual for information on a particular electrometer's internal damping feature.关于特定静电计内部衰减电路的性能，请参阅该仪器的操作手册。
Compared to an electrometer, the voltage noise and drift are much lower, and the current noise and drift are much higher.与测量高源内阻电压的静电计相比，纳伏表的电压噪声和电压漂移更低一些，电流噪声和电流漂移则是静电计要更低一些。
