JET-TYPE AUTOMATICALLY GENERATING FLOWMETER-COUNTER Russian patent published in 2001 - IPC

FIELD: measurement of volumetric flow rate, density and mass flow rate of medium. SUBSTANCE: flowmeter includes jet-type discrete element incorporating working chamber 2, control nozzles, two inlet ducts, divider with concave deflector, two discharge ducts and two feedback ducts in which converters of pulsation of pressure of jets to electric signal are placed. Differential manometer is connected to discrete element through T-joint with valves to measure pressure difference. Computer to which inputs outputs of differential manometer and extractor of signal proportional to frequency of pulsation are connected calculates frequency of variation of jet in accord with given algorithm. EFFECT: provision for test of jet-type flowmeter at point of its installation without removal from pipe-line. 1 dwg