Hi, I've got a horizontally moving piston in a pneumatic cylinder, the piston is moving backward to suck the air into the cylinder from a hole at one end, this will lead to an air flow rate. I would like to measure the air flow rate at that instant. I was thinking of with a pressure sensor attach to the cylinder, i can measure the pressure difference. By using Bernoulli's equation, i can calculate the air flow rate. Is this approach correct? and what pressure sensor would be suitable? If you need me to explain more on the details, I would be more than happy to help you. Thx guys.