Stepper motor is a motor controlled by digital signal, which converts pulse signal into Angle displacement. The wheeling speed is controlled by the frequency of pulse signal.

步进电机是一种数字控制电机，它将脉冲信号转变成角位移，电机的转速由脉冲信号频率决定。

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This paper deals with a closed-loop digital control for a hydraulic valve, controlled motor speed system.

研究了用位总线微机构成的液压阀控马达速度闭环数字控制系统。

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This machine is suitabw for skiving leather of various materials , Feed is controlled by an indiviual motor , which can adjust the feed speed according to the required tecchnology.

本机适用于各种材质皮料切削工艺。送料有单独调速电机控制，根据工艺要求可自由调节送料速度。

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The device instructs a patient to breathe at the correct speed, and a microprocessor-controlled motor squeezes the desired dose of insulin through microscopic holes on a mouthpiece, generating a fine aerosol.

FORBES: Waiting to Inhale