servo-motor

servo-motor

A technician adjusts a servo-motor on a robotic arm.

Definition
  1. Noun:
    • A motor that forms part of a servomechanism: A "servo-motor" is an electric motor that is designed to provide precise control of angular or linear position, velocity, and acceleration. It typically includes a feedback mechanism (such as an encoder) to ensure accurate movement in response to a control signal.
    • Synonym for a servomechanism's actuator: In engineering contexts, "servo-motor" refers specifically to the motor component within a closed-loop control system, used in robotics, automation, and CNC machinery.
Usage Examples
  • Noun:
    • The robot arm used a high-torque servo-motor to move each joint with millimeter accuracy. (A motor with feedback for precise positioning in a robotic system.)
    • In the factory, each conveyor belt is driven by a servo-motor that adjusts speed based on sensor input. (A motor controlled by a feedback loop for industrial automation.)
Advanced Usage

  • "to be driven by a servo-motor": to be powered by a motor with feedback control for precision.

    • The telescope's tracking system is driven by a servo-motor to follow celestial objects smoothly. (The motor adjusts continuously based on input from a sensor.)

  • "a servo-motor assembly": the complete unit including the motor, feedback device, and often a controller.

    • The engineer replaced the worn servo-motor assembly to restore the machine's accuracy. (The entire motor and feedback unit was replaced.)
Variants and Related Words
  • Servomechanism (n): a closed-loop control system that uses feedback to control the position, speed, or torque of a device.
    • The aircraft's autopilot relies on a servomechanism to adjust control surfaces. (A feedback system for automatic control.)
  • Servo (n): a shortened form of "servo-motor" or "servomechanism".
    • The hobbyist used a small servo to steer the RC car. (A compact motor with feedback for model vehicles.)
Synonyms
  • Actuator: a device that moves or controls a mechanism (broader term, not necessarily with feedback).
  • Feedback motor: a motor that receives signals from a sensor to adjust its output.
Phrasal Verbs
  • None common. "Servo-motor" is a technical noun and does not typically form phrasal verbs.
Related Idioms
  • None common. "Servo-motor" is a technical term and does not appear in idiomatic expressions.