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servomotor

servomotor

1 7.2
A motor that moves a part to an exact position, often in robots
  • noun
  • /ˈsɜrvəˌmoʊtər/
  • Specialized
translation icon : servomotor
  • To position the robotic arm accurately, a servomotor is used to adjust its angles.
  • brushless servomotor
  • DC servomotor
  • servomotor control

Examples

  • The KIN-COM consists of a servomotor-controlled rotary arm with an attached load cell.

    Academic text (1997)
  • Each arm is driven by a small servomotor.

    Academic text (2007)
  • For the controller, this was accomplished by using a PC-based servomotor controller.

    Academic text (1992)
  • Add an encoder and a controller, and you get positional control in the form of a DC brush servomotor.

    Academic text (2003)
  • Inside the controller of our DC brush servomotor, for instance, electronics compute the position/velocity error.

    Academic text (2003)
  • To maintain motor integrity at high bus voltages, the servomotors feature a 600-V-UL winding-insulation system.

    Academic text (1996)
  • The Platinum XT series is a three-phase brushless DC servomotor that uses armature technology.

    Academic text (1996)
  • The left foot and knee were secured to a platform to which a servomotor (Model 305B, Aurora Scientific, Aurora, Ontario, Canada) was attached.

    Academic text (2005)
  • Both stepper and closed-loop DC servomotors are offered with integrated noncontacting limit switches and homing sensors.

    Academic text (2006)
  • Sentry brushless servomotors are available in NEMA and metric mounting with UL and European compliance ratings.

    Academic text (1996)

Synonyms

motor
vsservomotor
69 6.0

A person, force, or thing that causes action

is a precise device for controlling part position, not a general driving force
actuator
vsservomotor
  • Specialized
5 7.4

A device that makes a machine move or work when it gets a signal

is specialized for precise position control rather than general automatic movement
stepper
vsservomotor
  • Specialized
3 8.1

A motor that turns in tiny, exact amounts to move parts precisely

is for exact position control of parts rather than stepped motion

How Precise

servomotor
  • Specialized
1 7.2
actuator
  • Specialized
5 7.4
motor
256 2.7

Surface Forms

servomotor singular
servomotors plural

Morphology

servomotor = servo + motor (semi-transparent) = servo + motor

The compound is compositionally clear (servo + motor), but 'servo' is a technical combining form that many learners may not know.

Etymology

The word servomotor comes from the parts servo (from a Latin word meaning 'servant' or 'helper', like the English word serve) and motor (from a word meaning 'move' or 'mover'). So a servomotor is a motor that 'serves' to control movement exactly, which is why we use it in robots and machines that need precise positions.