FIELD: instrumentation engineering. SUBSTANCE: flowmeter includes sensors for measurement of pressure at suction and discharge ends of pump and second for measuring active power consumed by electric motor of drive; sensors are connected with computer. Computer storage retains data on head and discharge characteristics of pumping unit, its operational efficiency and dependence of efficiency of electric motor on consumed active power. According to present magnitudes of pressure and power and data retained in storage, computer realizes reduction algorithm for calculation of mass flow rate and density. EFFECT: enhanced accuracy of calculation; enhanced reliability due to absence of primary sensors in flow of liquid being measured. 2 dwg
