What is a Flow Meter and What are the various types of flow meters?
A flow meter measures the volume or mass of a gas or liquid. It goes by various names like flow gauge, flow indicator, or flow rate sensor, depending on the industry. These devices all serve the purpose of measuring flow. Flow meters can gauge open channels, such as rivers or streams, or more commonly, they're used to measure gases and liquids in pipes. The best flow meters offer enhanced precision, accuracy, and resolution in fluid measurement, providing significant benefits to various industries. What are the various types of flow meters? Positive Displacement , also known as a Volumetric flow meter or PD flow meter, directly measures the actual volume. Unlike other types, which infer the flow rate by making alternative measurements, PD meters provide an output signal directly proportional to the volume passing through the meter. Bi-rotor types such as gear, oval gear, helical gear, nutating disc, reciprocating piston, and oscillating or rotary piston fall into this category