Another consideration when measuring voltages from highresistance sources is the input bias current of the voltmeter.
在测量高电阻源时要考虑的另一个问题是电压表的输入偏置电流。
2
Therefore, a voltmeter with high input resistance, such as an electrometer, is required.
所以需要使用具有高输入电阻的电压表,例如静电计。
3
Highresistance measurements using the constant-current method may be made using either an electrometer voltmeter and current source or just an electrometer ohmmeter.