IF this is what was going on...
... wouldn't the pressure pulses driving any flow increase move at the speed of sound?
Pre post edit
I was going to argue that at 2000 sampling points pr second the speed of sound would not allow for a quick enough increase and decrease of the actual flow given that the senor has a certain lenght, blah, blah, blah...
And then I checked, the speed of sound in gasline is well over 1000 m/s. So it is theoretically possible. Theoretically.