一种提供标量值的输入设备，如姆指旋转控制器、电位计。
An input device that provides a scalar value, e. g., a thumb wheel, a potentiometer.
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.
通过测试仪与舵电位计对接，利用继电器阵列控制精密电压源、精密恒流源对舵电位计进行测试，以此来判断舵电位计是否合格。
Collecting helm potentiometer to measure instrument, using of relay array to control precision power supply to test helm potentiometer. and then deciding helm potentiometer is up to standard or not.
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