International System of Units (SI)

A universal system of units in which the following six units of measure are considered basic: meter, kilogram, second, ampere, Kelvin degree and candela.

Inrush Current

The initial surge of current experienced before the load resistance of impedance increases to its normal operating value.

Influence Quantity

A quantity which is not the subject of the measurement but which influences the value of the output signal for a constant value of the measurand.