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A voltage that varies in a continuous fashion in accordance with the magnitude of a measured variable.

Related Terms

AMPLIFICATION

  1. An increase in signal magnitude from one point to another, or the process causing this increase.
  2. Of a transducer, the scalar ratio of the signal output to the signal input

MAGNETIC FLUX QUANTUM

A fundamental unit of magnetic flux, the total magnetic flux in a fluxoid in a type II superconductor, equal to h/(2e), where h is Planck's constant and e is the magnitude of the electron charge, or approxiiron, nickel, or titanium, or nonmagnetic deposits which either contain magnetic gangue minerals or are associated with magnetic structures.

LOOP GAIN

1. The ratio of the magnitude of the primary feedback signal in a feedback control system to the magnitude of the actuating signal. 2. Total usable power gain of a carrier terminal or two-wire repeater; maximum usable gain is determined by, and may not exceed, the losses in the closed path.

LOGIC SWING

The voltage difference between the logic levels used for 1 and 0; magnitude is chosen arbitrarily for a particular system and is usually well under 10 volts.

INDUCTIVE GROUNDING

Use of grounding connections containing an inductance in order to reduce the magnitude of short-circuit currents.

AMMETER

An instrument for measuring the magnitude of electric current flow.

LIQUID

Any substance that flows readily or changes in response to the smallest influence. More generally, any substance in which the force required to produce a deformation depends on the rate of deformation rather than on the magnitude of the deformation.

SOLID

Any substance having a definite shape which it does not readily relinquish. More generally, any substance in which the force required to produce a deformation depends upon the magnitude of the deformation rather than upon the rate of deformation.

SEMISOLID

Any substance having the attributes of both a solid and a liquid. Similar to semiliquid but being more closely related to a solid than a liquid. More generally, any substance in which the force required to produce a deformation depends both on the magnitude and on the rate of the deformation.

ALTERNATING CURRENT

An electric current that continually changes in magnitude and periodically reverses polarity

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