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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. This is the steering actuator of a large robot vehicle.
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 (often a dedicated module designed specifically for servomotors).
Servomotors are not a specific class of motor, although the term servomotor is often used to refer to a motor suitable for use in a closed-loop control system. Servomotors are used in applications such as robotics, CNC machinery, and automated manufacturing.
- ^ a b Escudier, Marcel; Atkins, Tony (2019). "A Dictionary of Mechanical Engineering". doi:10.1093/acref/9780198832102.001.0001. ISBN 978-0-19-883210-2.
{{cite journal}}: Cite journal requires|journal=(help) - ^ Sawicz, Darren. "Hobby Servo Fundamentals" (PDF). Archived (PDF) from the original on 2012-09-07. Retrieved 2012-10-12.