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A motor that controls the action of the mechanical device in a servomechanism.

[French servomoteur : Latin servus, slave + French moteur, motor (from Old French, from Latin mōtor, that which sets in motion; see motor).]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Electrical Engineering) any motor that supplies power to a servomechanism
[C19: from French servo-moteur, from Latin servus slave + French moteur motor]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈsɜr voʊˌmoʊ tər)

a motor or the like forming part of a servomechanism.
[1885–90; < French servo-moteur < Latin serv(us) slave + French -o- -o- + moteur motor]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
References in periodicals archive ?
The AKM2G servomotor is configurable, synchronous servomotor with increased power density and improved torque/speed ratio so OEMs can get up to 30% more performance out of an equivalent size motor or achieve the same performance with a smaller motor.
Figure 1 shows the closed four-point structure of the high-speed punching press considered in this study, including an upper crossbeam, side column, lower crossbeam, movable crossbeam, servomotor, gear set, slider, two crankshafts, four connecting rods, four lead screws, and four hydraulic cylinders.
* SELF-CONTAINED SERVO-HYDRAULICS: Company sources at the show were particularly excited about the new 100% self-contained hydraulic axis (SHA), consisting of a servomotor, pump, small pressurized oil reservoir, all valving, and a four-area hydraulic cylinder.
servomotor with disk rotor; [T.sub.n] - rpm encoder; F --filter; CNA--numeric/analogue converter; CAN--analogue/numeric converter; --output angular speed on the servomotor shaft;--control size of the voltage converter supplied by the speed regulator;--imposed reference; reaction size;--error; RNV--speed numerical regulator.
The jacquard machine in case of the VSi32 is driven by a servomotor eliminating the need for a mechanical connection between the weaving machine and the jacquard.
Unison says that the servomotors that control the motion only consume any significant amount of energy when performing a bend.
The new machine combines the field-proven Marathon SL technology with a complete Allen-Bradley drive-train and controls platform consisting of servodrives, servomotors, PLC and humanmachine-interface as well as reconfigured electrical control cabinets.
Recent introductions include four new series of all-electric machines, which feature Sumitomo's advanced direct-drive servomotor technology for plasticizing, injection, clamping, and ejection.
Features include: 28" rotary infeed table with unloading tray, servomotor controlled main drive, six position for WFI and sterile air treatment, 316L stainless steel contact parts, WFI recirculation, stepper motor controlled single-file outfeed, changeovers in less than 10 minutes.
* Induction or synchronous servomotor design for mating the right motor to the size requirements and dynamic response needs; both styles feature the same mechanical and electrical interface to simplify engineering