Gain
Also: system gain
How much output changes for a change in input under specified conditions.
Static gain is Δoutput/Δinput near an operating point; dynamic gain may vary with frequency and state.
- Units
- output units per input unit
- Formula
K = Δy/Δu
Example A local motor model may have gain 120 rpm/V.
Common misconception Gain is not necessarily dimensionless or constant across the operating range.