servomechanism


Also found in: Dictionary, Thesaurus, Acronyms, Encyclopedia, Wikipedia.

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

(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 ?
The State of the Art (SoA) approach to upgrading the combustion control systems consists of substituting the mechanical linkage between the air inlet damper and the fuel inlet valve with a digital controller acting on electromechanical positioning servomechanisms (Eoff, 2008 and Alleman, 2010).
Servomechanism of prolactin and progesterone in regulating uterine gene expression.
The systematic design of control systems for the multivariable servomechanism problem.
Joystick control was achieved by two independent servomechanisms, both of which received their input from a force sensor.
[3.] Simon, H.A., "On the application of servomechanism theory in the study of production control", Econometrica, Vol.
Being a servomechanism can be seen in a positive or negative light.
Fung, "Minimum-energy point-to-point trajectory planning for a motor-toggle servomechanism," IEEE/ASME Transactions on Mechatronics, vol.
For this, a modified version of the scheme shown in Figure 6 may be exploited, known as LQR PI servomechanism. This may be achieved by setting [A.sub.r], [B.sub.r], and [C.sub.r] as null matrices and [D.sub.r] as identity matrix.
EM: Dad got the servomechanism idea from Wyndham Lewis, the painter and writer.
The method of system dynamics, combining the feedback system of cybernetics and the engineering theory in servomechanism, was developed by Dr.
For the speed controller synthesis we can assume second order transfer function with time constant of pump internal servomechanism and substitution time constant of speed sensor.