The reciprocal of gain. Bias - A voltage that is maintained at a point in a circuit. Damping - The progressive reduction or suppression of oscillation in a device or system. Viscous damping uses the viscosity of liquids or gases to effect damping. Differential signal - A voltage measured with reference to another voltage that is isolated from power or signal ground.
Differential measurement helps reject noise that originated from the ground.
Digital signal - Representation of information by a set of discrete values in accordance with a prescribed law. These values are represented by numbers. The behavior of the output of a device as a function of the input, both with respect to time. Error - The algebraic difference between the indication and the ideal value of the measured signal. It is the quantity which algebraically subtracted from the indicated value gives the ideal value.