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2. Servomotor - Wikipedia

   en.wikipedia.org/wiki/Servomotor

   A servomotor (or servo motor or simply servo) [1] is a rotary or linear actuator that allows for precise control of angular or linear position, velocity, and acceleration in a mechanical system. [ 1 ] [ 2 ] It constitutes part of a servomechanism , and consists of a suitable motor coupled to a sensor for position feedback and a controller ...

3. Servomechanism - Wikipedia

   en.wikipedia.org/wiki/Servomechanism

   The grey/green cylinder is the brush-type DC motor. The black section at the bottom contains the planetary reduction gear, and the black object on top of the motor is the optical rotary encoder for position feedback. Small R/C servo mechanism. 1. electric motor 2. position feedback potentiometer 3. reduction gear 4. actuator arm

4. Lego Mindstorms - Wikipedia

   en.wikipedia.org/wiki/Lego_Mindstorms

   This version contains 541 pieces and always includes 3 servo motors (2 large and 1 medium), 4 sensors (2 touch sensors, ultrasonic sensor, colour sensor and gyro sensor) and the EV3 programmable brick. LEGO MINDSTORMS Education EV3 Expansion Set 45560; This set instead contains 853 Lego Technic elements The EV3 can be controlled by smart-devices.

5. Servo (radio control) - Wikipedia

   en.wikipedia.org/wiki/Servo_(radio_control)

   The servo is controlled by three wires: ground, power, and control. The servo will move based on the pulses sent over the control wire, which set the angle of the actuator arm. The servo expects a pulse every 20 ms in order to gain correct information about the angle. The width of the servo pulse dictates the range of the servo's angular motion.

6. Radio-controlled helicopter - Wikipedia

   en.wikipedia.org/wiki/Radio-controlled_helicopter

   The various helicopter controls are effected by means of small servo motors, commonly known as servos. A solid-state gyroscope sensor is typically used on the tail rotor control to counter wind- and torque-reaction-induced tail movement. [4] Most newer helicopters have gyro-stabilization on the other 2 axis of rotation (pitch and roll) as well.

7. Servo control - Wikipedia

   en.wikipedia.org/wiki/Servo_control

   Servo and receiver connections A diagram showing typical PWM timing for a servomotor. Servo control is a method of controlling many types of RC/hobbyist servos by sending the servo a PWM (pulse-width modulation) signal, a series of repeating pulses of variable width where either the width of the pulse (most common modern hobby servos) or the duty cycle of a pulse train (less common today ...