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noun

actuator

a mechanism that puts something into automatic action

In a sentence

Six example sentences with actuator, each labelled with its topic.

  • A tiny actuator behind the lens nudges the glass whenever the sensor detects a shaking hand, so the frame stays sharp.

    Photography

  • One actuator opens every skylight in the atrium when the indoor temperature passes twenty-four degrees.

    Architecture

  • The insulin pump uses a small actuator to push the plunger forward in doses measured to a thousandth of a millilitre.

    Medicine

  • Each finger of the robot hand has its own actuator, so the software can close one joint while another stays open.

    Technology

  • The controller's actuator delivers a small jolt whenever the car hits gravel, so you feel the road before you see it.

    Gaming

  • A solenoid actuator lifts each hammer of the player piano, striking the string exactly when the roll's hole passes.

    Music

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