If the load resistor was connected directly across the voltmeter input terminals, the current through the relay contacts would cause a voltage drop and the measured cell voltage would be in error.
如果负载电阻被直接连接到伏特计的输入端子，通过继电器触点的电流会产生电压降，测得的电池电压将存在误差。
Since the leakage current through the zener diodes results in a voltage drop across the resistor, low leakage zener devices are desirable.
由于流过齐纳二极管的泄漏电流会在电阻器上产生电压降，所以希望使用低漏电的齐纳二极管。
These resistor values should be such that the voltage drop at the maximum measured current will not affect measurement accuracy.
这些电阻器的阻值应当使其在最大测试电流时的电压降不会影响测量的准确度。
If the instrument is being used to measure a small voltage drop resulting from the flow of current through a resistor, the following procedure will result in a proper zero.
如果用仪器来测量电流流过一个电阻器所产生的小电压降，那么采用下述的方法可以得到合适的零点。
A good rule of thumb is to use a large enough resistor to cause a 1v drop at the maximum current to be measured.
比较好的经验法则是在最大被测电流下，使得该电阻器上的电压降为1v。
The amount of voltage used up for each resistor is called the voltage drop across that resistor.
每一电阻所消耗的电压量称为该电阻上的电压降。
Warning: If the value drops below 5 ohms the overall impedance of the system will drop to dangerous levels so use caution when adjusting this resistor.
警告：如果该值下降到低于5欧姆的整体阻抗系统将下降至危险水平，所以使用时要小心调整这个电阻。
Warning: If the value drops below 5 ohms the overall impedance of the system will drop to dangerous levels so use caution when adjusting this resistor.
警告：如果该值下降到低于5欧姆的整体阻抗系统将下降至危险水平，所以使用时要小心调整这个电阻。
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