(n) control system that converts a small mechanical motion into one requiring much greater power; may include a negative feedback system, Syn.servomechanism, servosystem
n. an electronically controlled mechanical or hydraulic device permitting a large action or strong forces to be controlled by a small electrical signal. [ PJC ]
n. [ Sometimes erroneously spelt serro-motor. ] [ F. servo-moteur. See Serf; Motor. ] 1. (Mach.) A relay apparatus; specif.:(a) An auxiliary motor, regulated by a hand lever, for quickly and easily moving the reversing gear of a large marine engine into any desired position indicated by that of the hand lever, which controls the valve of the motor. (b) In a Whitehead torpedo, a compressed-air motor, for moving the rudders so as to correct deviations from the course. [ Webster 1913 Suppl. ]
2. a motor which forms part of a servomechanism. [ PJC ]
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