servomechanism


ser·vo·mech·a·nism

noun \ˈsər-vō-ˌme-kə-ˌni-zəm\

Definition of SERVOMECHANISM

:  an automatic device for controlling large amounts of power by means of very small amounts of power and automatically correcting the performance of a mechanism

Origin of SERVOMECHANISM

servo- (as in servomotor) + mechanism
First Known Use: 1926

servomechanism

noun    (Concise Encyclopedia)

Device used to correct the performance of a mechanism automatically, by means of error-sensing feedback. The term properly applies only to systems in which the feedback and error-correction signals control mechanical position or velocity. Servomechanisms were first used in military and marine navigation equipment. Today they are used in automatic machine tools, satellite-tracking antennas, celestial-tracking systems on telescopes, automatic navigation systems, and antiaircraft-gun control systems. The design of servomechanisms is considered to be a branch of both robotics and cybernetics.

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