MULTI-PURPOSE VORTEX-TYPE FLOWMETER Russian patent published in 2002 - IPC

FIELD: measurement of flow rates of liquids and gases. SUBSTANCE: proposed flowmeter includes primary transducer whose signal is furnished to first normalizing amplifier whose output is connected via filter to signal input of second normalizing amplifier. Output of second normalizing amplifier is connected to input of analog-to-digital converter. Output of analog-to-digital converter is connected to input of microcontroller. First and second control outputs of microcontroller are connected respectively to control inputs of first and second normalizing amplifiers. Signal output of microcontroller is connected to output signal shaping unit at whose outputs standard output signals and interfaces of flowmeter are shaped. EFFECT: enhanced accuracy of measurements of flow rate in wide range under action of vibration of pipe line, pulsation of flow and acoustic noise. 1 dwg