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Definition of "Damping" |
Decrease in the amplitude of an oscillation or wave motion with time. / The process of smoothing out oscillations. The progressive decay with time in the amplitude of the free oscillations in a circuit. The progressive diminution with time of certain quantities characteristic of a phenomenon. In a meter, this process is used to keep the pointer of the meter from over-shooting the correct reading. A mechanical or electrical technique used in synchro receivers to prevent the rotor from oscillating or spinning. Damping is also used in servosystems to minimize overshoot of the load. / Damping is an influence within or upon an oscillatory system that has the effect of reducing, restricting or preventing its oscillations. In physical systems, damping is produced by processes that dissipate the energy stored in the oscillation. Examples include Viscous drag in mechanical systems, resistance in electronic oscillators, and absorption and scattering of light in optical oscillators. Damping not based on energy loss can be important in other oscillating systems such as those that occur in biological systems. / Damping is an influence within or upon an oscillatory system that has the effect of reducing, restricting or preventing its oscillations. In physical systems, damping is produced by processes that dissipate the energy stored in the oscillation. / The most common way to vary the resistance in a circuit is to use a rheostat. The word "rheostat" was coined about 1845 by Sir Charles Wheatstone, from the Greek word rheos meaning stream, and stat meaning regulating device which is a two-terminal variable resistor. For low-power applications a three-terminal potentiometer is often used, with one terminal unconnected or connected to the wiper. / (1) a characteristic built into electrical circuits and mechanical systems that prevents rapid or excessive corrections that may lead to instability or oscillatory conditions. |
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