The ratio of the output voltage of a differential amplifier to the commonmode input voltage.
Related Terms 
FILTRATION (BETA) RATIO
The ratio of the number of particles greater than a given size in the influent fluid to the number of particles greater than the same size in the effluent fluid.

ADIABATIC EFFICIENCY
The ratio of actual work output of a heat engine to the ideal output.

ADIABATIC EFFICIENCY
The ratio of actual work output of a heat engine to the ideal output.

BETARATIO (ßRATIO)
The ratio of the number of particles greater than a given size in the influent fluid to the number of particles greater than the same size in the effluent fluid, under specified test conditions (see 'MultiPass Test').

BULK MODULUS (OF ELASTICITY)
A ratio of normal stress to a change in volume. A term used in determining the compressibility of a fluid. Data for petroleum products can be found in the International Critical Tables.

AIRFUEL RATIO
The ratio weight, or volume, of air to fuel.

SENSIBLE HEAT FACTOR
The ratio of sensible heat to total heat.

POISE
A measure of viscosity (absolute viscosity) numerically equal to the force required to move a plane surface of one square centimeter per second when the surfaces are separated by a layer of fluid one centimeter in thickness. It is the ratio of the shearing stress to the shear rate of a fluid and is expressed in dyne seconds per square centimeter (DYNE SEC/CM2); 1 centipoise equals .01 poise.

BIAS
The output plus (or minus) some arbitrary value.

CASCADE
A series of stages in which the output of one stage is the input of the next stage.
