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actuator

   Also found in: Acronyms, Encyclopedia, Wikipedia 0.01 sec.
ac·tu·a·tor  (kch-tr)
n.
One that activates, especially a device responsible for actuating a mechanical device, such as one connected to a computer by a sensor link.
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.actuator - a mechanism that puts something into automatic action
mechanism - device consisting of a piece of machinery; has moving parts that perform some function
positioner, rotary actuator - (computer science) the actuator that moves a read/write head to the proper data track

A mechanism that furnishes the force required to displace a control surface or other control element.

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A servo drive linear actuator slides the casting(s) through the saw blade for accurate, precision cuts of gates, risers and heavy flash.
, incorporates an unusual-looking actuator of a non-linear, low-friction design that uses no ballscrews nor belts, coupled with a high-torque, direct-drive AC servomotor.
``During recent hardware testing required to confirm the final autopilot modifications, a flight actuator was inadvertently damaged and will be replaced.
 
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