Actuators are mechanical or electro-mechanical devices that provide controlled and sometimes limited movements or positioning which are operated electrically, manually, or by various fluids such as air, hydraulic. Actuators are segregated by motion and power source. Linear actuators produce push/pull action. Rotary actuators produce rotational motion. In many cases, linear actuators begin with a rotary prime mover-a motor, typically whose rotation is converted to linear motion through a power screw or similar device.
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Material Science Congress Virtual 