The measuring circuit of the current sensor isolated measuring method is completely isolated from firing circuit, thus the measuring accuracy and test reliability can be improved.

电流传感器隔离测量方法中测量电路完全与点火电路隔离，提高了测量的准确性，增强了点火试验的可靠性。

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The principle of compensation method to measure resistance is analyzed, and the measuring circuit of voltage compensation and current compensation is designed.

对补偿法测电阻的原理进行分析，设计了电压补偿测电阻和电流补偿测电阻的实验电路。该电路测量精度高，结构简单，操作方便。

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The apparatus includes a digital voltage measuring circuit controllably coupled to selected ones of the voltage measurement electrodes and digitally controlled current sources.

该设备包括数字电压测量电路和数控电流源，所述数字电压测量电路可控地连接至所述多个电压测量电极中的选定电极。

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