- #1
CadisEtramaDiRaizel
- 13
- 0
I have to build a digital peak flow meter. I have two models based on calculations ( ideal). I have noticed that the flow rate on the model with a tighter constriction has a greater value than that of a much broader constriction. While testing it out, i noticed air resistance from the first model ( tighter). The second one has almost no resistance. So, does back pressure give an incorrect reading>