actuator

IPA/ˈæk.tʃu.eɪ.tər/
KK[ˈæktjuˌetɚ]IPA/ˈæk.tʃu.eɪ.t̬ɚ/

actuator — noun

  • actuatorsingular
  • actuatorsplural

1. a component in a device that turns a control signal into physical movement, such

1.名詞C1
釋義

a component in a device that turns a control signal into physical movement, such as opening, closing, lifting, or pushing a part.

例句

The door actuator failed, so Owen had to slide the gate open.

door actuator / mechanical failure

A small actuator tilts the mirror when Hiro presses the control button.

actuator + control button

同義詞
  • motor

    A motor is one kind of power source; an actuator is the movement-producing part more generally.

  • servo

    Usually means a controlled motor or mechanism that adjusts position very precisely.

  • mechanism

    Much broader; can describe the whole moving system, not only the part that executes the motion.

文法句型

[type] + actuator

actuator + in + [machine or system]

replace/install/test + actuator

用法筆記

This word is usually used for the part that carries out a command by creating real movement. In technical writing, it often contrasts with a sensor, which detects a change but does not move the part itself.

常見錯誤

❌The sensor opened the valve when pressure changed.
✅The actuator opened the valve when pressure changed.
💡a sensor detects the change, but an actuator performs the movement.