# Is the pressure of the gas identical to the static pressure of the liquid in the diagram?

In my application the liquid would be tapped from a fast-varying flowrate, and I want to measure the static pressure change during this by measuring the air pressure above it. Will this work?

• The image won't load. The error message is that the image contains errors. – Fred Oct 11 '17 at 11:00
• @Fred Hi, does that help? – Oliver Walters Oct 11 '17 at 13:31
• @Oliver_Waters: Perfect! – Fred Oct 11 '17 at 14:21
• there is a small difference due to gravity (rho g h) . Unless the point you are trying to measure is a significant height below the top of the liquid that is probably negligible though. – agentp Oct 11 '17 at 20:06