${\displaystyle r\left(t\right)=\frac{1}{K_{\text{ρ}}}\cdot \Delta v_{\text{ρ}}\left(t\right)}$

Note 1 to entry: The unit-ramp response may be calculated from the unit-step response by

${\displaystyle r\left(t\right)={\displaystyle \underset{-\infty }{\overset{t}{\int }}h\left(\tau \right)}\text{d}\tau }$.

Note 2 to entry: The unit-ramp response of a system mathematically may be considered to result from application of a unit ramp to an input variable.