Howtosignalprocessing
- Why is temperature and pressure compensation required in flow measurement?
- How do you calculate flow rate with temperature and pressure?
- What is the effect of temperature on flow measurement?
- What is a pressure compensated flow meter?
Why is temperature and pressure compensation required in flow measurement?
Measuring gases: P- and T-compensation
Because the volume of gases is so strongly influenced by pressure and temperature, it is necessary to express volumes of gases (and thus also of flows) in a way that they would be under standard conditions.
How do you calculate flow rate with temperature and pressure?
M = Q x ρ, where Q is the actual flow and ρ is the density. As the pressure and temperature change, the volume and density change, however the mass remains the same.
What is the effect of temperature on flow measurement?
Positive-displacement flowmeters measure the volume of liquid flowing through the flowmeter. Increasing the temperature of the liquid will cause the flowmeter body to expand and cause it to under-register (Answer B).
What is a pressure compensated flow meter?
A pressure-compensated flow control valve is designed to provide a constant volume flow rate regardless of the pressure drop across it. By contrast, non-pressure-compensated flow control valves have a variable flow rate that changes when the pressure drop fluctuates.
