基于BP算法的三自由度数字式机械臂系统控制用计算机作数字控制器，电位计测量车位置、上下摆角度。
Computer is used as digital controller in control system of three-freedom degree digital machine arm based on BP algorithm, and potentiometer measures position of hoist and up-down pendulum Angle.
图4 - 16示出6485型皮安计从离子收集电极测量电流的情况，这时仪器工作在地电位。
Figure 4-16 shows a Model 6485 Picoammeter measuring the current from the ion collector, which is operating at ground potential.
根据电压补偿原理，设计了自组电位差计的几种实验电路，用于测量干电池的电动势和内阻。
According to the voltage compensation method, several experiment circuits of potentiometer are designed to measure the voltage and the internal resistance of the dry battery.
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