系统采用MAX5451数字电位计不但简化了硬件电路，而且使功率的控制数字化。
The system Simplifies hardware circuit by using a MAX5451 digital potentiometer chip, it also digitized the laser power control.
本文还介绍了一种根据实际情况把电位计和固定电阻结合的方法，提高了电位计在电路中的精度。
It also introduces a method according to the actual situation to put a fixed resistance combination of potentiometer, and it improved the accuracy of circuit.
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.
用这种电路替代原721型分光光度计中的光强调节电位器即可实现自动调节光强。
While substituting the regulation-resistor for light intensity adjustment on the spectrophotometer with this device, automatic adjustment of light intensity is realized.
用这种电路替代原721型分光光度计中的光强调节电位器即可实现自动调节光强。
While substituting the regulation-resistor for light intensity adjustment on the spectrophotometer with this device, automatic adjustment of light intensity is realized.
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