Servos (radio Control)
Servo may refer to: Mechanisms * Servomechanism, or servo, a device used to provide control of a desired operation through the use of feedback ** AI servo, an autofocus mode ** Electrohydraulic servo valve, an electrically operated valve that controls how hydraulic fluid is ported to an actuator ** Servo drive, a special electronic amplifier used to power electric servomechanisms ** Servomotor, a rotary actuator that allows for precise control of angular position ** Servo (radio control), a small, cheap, mass-produced actuator used for radio control and small robotics *** Servo bandwidth, the maximum trackable sinusoidal frequency of an amplitude *** Servo control, the use of pulse width modulation to remotely control servos * Servo tab, a small hinged device installed on an aircraft control surface to assist the movement of the control surface Media Music * "Servo", a song by The Brian Jonestown Massacre from the album ''Give It Back!'' Publications * ''SERVO Magazine'', a mo ...
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Servomechanism
In mechanical and control engineering, a servomechanism (also called servo system, or simply servo) is a control system for the position and its time derivatives, such as velocity, of a mechanical system. It often includes a servomotor, and uses closed-loop control to reduce steady-state error and improve dynamic response. In closed-loop control, error-sensing negative feedback is used to correct the action of the mechanism. In displacement-controlled applications, it usually includes a built-in encoder or other position feedback mechanism to ensure the output is achieving the desired effect. Following a specified motion trajectory is called servoing, where "servo" is used as a verb. The ''servo'' prefix originates from the Latin word ''servus'' meaning slave. The term correctly applies only to systems where the feedback or error-correction signals help control mechanical position, speed, attitude or any other measurable variables. For example, an automotive power win ...
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