servomechanism


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ser·vo·mech·a·nism

(ser'vō-mek'ă-nizm),
1. A control system using negative feedback to operate another system.
2. A process that behaves as a self-regulatory device; for example, the reaction of the pupil to light.
[L. servus, servant, + G. mēchanē, contrivance]

servomechanism

[sur′vōmek′əniz′əm]
a control system in which feedback is used to correct errors in another system. A biological example is the mechanism that controls the size of the pupil of the eye as the intensity of light changes.

servomechanism

(sŭr″vō-mĕk′ă-nĭzm)
In biology and physiology, a self-regulatory control mechanism that operates by negative feedback. For example, when the blood glucose level rises in the normal person, the pancreas responds by releasing insulin, which enables cells to take in and metabolize glucose. The level of other hormones is also regulated by this mechanism.

servomechanism

a control system that uses negative feedback (see FEEDBACK MECHANISM to maintain a level of output or performance.
References in periodicals archive ?
A virtual representation of the controller was implemented in LabView to drive the actual air and fuel servomechanisms on an experimental boiler.
The design of controllers for the multivariable robust servomechanism problem using parameter optimization methods.
In his The Organization of Action, Gallistel (1980) built a model of behavior based on evolved elements, including reflexes, oscillators, and servomechanisms.
Training includes working with CNC machines, CAD/CAM, conventional manual machines, controls, metrology, metallurgy, electronics, and servomechanisms.
The change comes largely from successes in recent years in using computer programs and active optics directed by computer-driven servomechanisms to compensate for atmospheric turbulence.
Like both GE fluids, Nyosil-M25 is recommended for a variety of aviation and aerospace components, including servomechanisms, gear boxes, bearings in precision instruments, electronic equipment, electrical motors, clocks, and timing devices.
According to the design of your site and your objectives, DIRICKX offers you the best scenario possible including : limiting and closing accesses, control and management of access flows by automatisms, electronic servomechanisms.
The series shows twelve dystopic accounts of the extreme rationalization of industrial city-machines and their coupling with postindustrial cybernetic servomechanisms.
By the end of the war there had emerged a theory of servomechanisms that was universally applicable and easy to manipulate.
Several general aspects of the various types of atomic frequency standards, including atomic-state interrogation time, the form of the microwave cavity, and linecenter servomechanisms are briefly discussed next.
The further research should include the role of friction forces in the modelling process of dynamic transmission error of geared servomechanisms.
Some experts divide the servomechanisms according to their performance--own pulsation, accelerating capacity, accuracy--in three classes: of high performance, of medium performance and of low performance (Yoo et al.