电位计测量法
Sliding resistance was replaced by the fixed value resistance, and potentiometer was used to adjust volt, it could make measurement of diode reverse characteristic more convenient.
用定值电阻代替滑线变阻器,用分压器调节电压,可使二极管反向特性的测量更加方便。
Check whether the motor speed measurement wire is broken or virtual connected, or the speed given potentiometer is damaged and unadjustable.
检查电机测速线是否断路或虚接,或速度给定电位器损坏不可调。
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