NON-INTRUSIVE FLOW METER FOR THE LIQUID COMPONENT OF TWO PHASE FLOW BASED ON SOLID, LIQUID OR GAS BORNE SOUND

摘要

.The method includes determining the Power Spectral Densityfrom the output of an accelerometer in close proximity to the restric-tion orifice controlling the gas flow, or determining the PowerSpectral Density from the output of a pressure transducer in contactwith the gas flow on the down stream side of the restriction orifice.The liquid flow can then be obtained from a predeterminedcorrelation between the RMS Vibrational Signal and the mass or liquidflow rate.