What are the different types of flow meters?

• Differential pressure (DP) flow meter
• Velocity flowmeter
• Positive displacement flowmeter
• Mass flowmeter

Differential pressure (DP) flow meter

Examples of DP flow meters are orifice plate, venturi meter, flow nozzle, rotameter.

Velocity flowmeter

Examples of velocity flow meters are electromagnetic flowmeter, ultrasonic flowmeter, turbine flowmeter, paddlewheel

flow meter.

Positive displacement flowmeter

Examples of PD flow meters are nutting disc, rotary vane, gear, diaphragm flowmeter.

Mass flowmeter

Examples of mass flow meters are Coriolis flow meters, thermal dispersion meters