Operation can be conducted after the indicating value of direct current voltmeter of the panel is zero.
待面板的直流电压表的指示值为0时方可进行操作。
Another consideration when measuring voltages from high resistance 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。
The ohmmeter USES an internal current source and electrometer voltmeter to make the measurement.
欧姆计使用内部的电流源和静电计电压表来进行测量。
If using a separate current source and voltmeter to make low resistance measurements, each instrument must be checked for non-ohmic contacts.
如果使用分离的电流源和电压表来进行低电阻测量，则必须检查每台仪器的非欧姆接触情况。
Because of the low test current level used, a very sensitive voltmeter is required to measure the voltage drop, which is usually in the microvolt range.
由于所使用的测试电流很低，所以就需要非常灵敏的电压表来测量这种通常在微伏范围的电压降。
Notice that this is a two-wire resistance measurement compared to using the electrometer voltmeter and external current source, which can make a four-wire measurement.
注意，这种测量方法是两线电阻测量，而使用静电计电压表和外部电流源则可以进行四线测量。
Any common-mode current (ICM) that may be present flows from the voltmeter input lo to instrument chassis common, through earth ground to voltage source ground.
可能出现的共模电流(ICM)从电压表的输入低端流到仪器的机箱公共端，经过大地再流到电压源的地。
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。
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。
When the electric voltage and current are measured with voltmeter and ammeter, certain measuring errors could occur due to the inherent resistance.
在实际使用电压表、电流表测量电压、电流时，因测量仪表的内阻会产生一定的测量误差。
It must also be remembered that any voltmeter is a high-impedance device and that an ideal voltmeter draws no current from the circuit being tested.
我们需要记住的是任何伏特计都是一台高阻抗设备并且一个理想的伏特计是不从被测试的电路分出电流的。
DC voltmeter PA2: the secondary DC current exported by indicating device.
直流电压表pa 2：指示设备输出的二次侧直流电流。
The normal parameter-measure method of motor magneto is using alternating current, voltmeter and instrument to measure then read and record the data.
常规的摩托车磁电机参数测量方法是用交流电流、电压表及示波器等仪表进行测量，再从表上进行读数并记录。
The normal parameter-measure method of motor magneto is using alternating current, voltmeter and instrument to measure then read and record the data.
常规的摩托车磁电机参数测量方法是用交流电流、电压表及示波器等仪表进行测量，再从表上进行读数并记录。
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