Combined with the problems during the experiment, design a improved testing circuit of Current Attenuation Method.

结合试验过程中遇到的问题, 给出了改进的直流衰减法测试电路.

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Digital vernier caliper is composed of capacitance grid transducer, Liquid Crystal Display and corresponding testing circuit.

数字游标卡尺由容栅传感器 、 液晶显示器和相应的检测电路组成.

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