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Differential Pressure Meters
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accurate anemometers Bernoulli's equation cause cavitation Chapter coefficient cross-section cryogenic current meters density designed diameter differential pressure meters Disadvantages Doppler-effect downstream drag-plate duct effect electrical electromagnetic flowmeter Engineering errors flow measurement flowmeter flowrate meters fluid flow frequency gas meters gauge head loss high accuracy hot-resistor industrial insertion meter installed Instrument Society ISO Standard laboratory laminar linear manometer manufacturers mass flow mass flowrate master meter mechanical meter on test method nozzle obtained operator orifice plate output Pelton wheel performance petroleum piezometer pipe prover pipework pitot tube positive displacement meters practice pressure tappings principle probe pulsating flow pulse range of flowrates readout recalibration Reynolds number rotameter rotating rotor shown in Figure swirl temperature thermal total volume tracer transducer turbine meters two-phase flow type of meter types of flowmeter ultrasonic usually valve velocity meter velocity profile venturi tube venturi-nozzle viscosity volumetric flowrate weight weightank wide rangeability