The relationship between the control voltage and the current output by the constant-current source may shift.
控制电压和由恒流电源输出的电流之间的关系改变可能会产生漂移。
2
High resistance measurements using the constant-current method may be made using either an electrometer voltmeter and current source or just an electrometer ohmmeter.
采用恒流法，可以使用静电计电压表和电流源或者只使用静电计欧姆计来测量高电阻。
3
A fairly basic circuit (left as an exercise, but it's not difficult) can take the control voltage and output a constantcurrent which is proportional to the voltage.