vookogus, Q = dV/dt, kus V on tegelik voomaht ja t on aeg, mis kulus selle voomahul arvesti läbimiseks, flow rate, Q = dV/dt, where V is actual volume of flow and t is time taken for this volume to pass through the meter, voomuunduri ristlõiget läbinud voolava keskkonna vookoguse suhe selle ristlõike läbimiseks kulunud ajaga, ratio of the quantity of fluid passing through the cross-section of the flow sensor and the time taken for this quantity to pass through this section, mass or volume of fluid passing through the primary device per unit time, quotient of the quantity of fluid passing trough the cross-section of a conduit and the time taken for this quantity to pass through this section