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actuator |
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actuatorA mechanism that causes a device to be turned on or off, adjusted or moved. The motor and mechanism that moves the head assembly on a disk drive or an arm of a robot is called an actuator. See access arm. actuator [′ak·chə‚wād·ər] (control systems) A mechanism to activate process control equipment by use of pneumatic, hydraulic, or electronic signals; for example, a valve actuator for opening or closing a valve to control the rate of fluid flow. (engineering acoustics) An auxiliary external electrode used to apply a known electrostatic force to the diaphragm of a microphone for calibration purposes. Also known as electrostatic actuator. (mechanical engineering) A device that produces mechanical force by means of pressurized fluid. (ordnance) Part of the receiver mechanism in certain types of automatic weapons. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| ? Mentioned in | ? References in periodicals archive | |
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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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