What are the mechanical in-situ flow meters?
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What are the mechanical in-situ flow meters? What are their respective features and application ranges?
It was the first time I saw this name: “Mechanical on-site flow meter”. Flow meters are classified into mass flow meters, vortex flow meters, swirl flow meters, rotameters, differential pressure flow meters, etc. Do you mean field flow meters when you refer to “mechanical field flow meters”? The on-site flow meters should all be “mechanical on-site flow meters”.
Mechanical? Rotor, turbine? There are also target flow meters – the kind that can be used for whatever purpose you need without requiring a power supply at all If the requirements are not high, a water meter can be installed directly
Mechanical: turbines, rotors, gears, rotors, baffles, open channels, etc
Rotary flow meter, epicyclic gear flow meter, propeller flow meter
For purely mechanical types, they are positive displacement flowmeters and variable area flowmeters.