DEVICE FOR MEASURING MASS FLOW OF LIQUID MEDIA Russian patent published in 2016 - IPC G01P5/08 

FIELD: measuring equipment.

SUBSTANCE: invention relates to measurement equipment and can be used for high-precision measurement of liquid mediums flow rate in pipelines. Device comprises microwave generator, circulator, transceiving antenna guided through a radio-transparent window into pipeline at an angle to flow direction, first mixer, first directional coupler, main output of which is connected to first input of circulator, and additional output is connected to first input of mixer, wherein second input of mixer is connected to second output of circulator, and third output of circulator is connected to transceiving antenna, a computing unit, connected to output of mixer. Additionally, device comprises a second and a third directional coupler, phase detector, connected by output to control input of microwave generator whose output is connected to input of second directional coupler, main output of which, in turn, is connected to input of third directional coupler, additional output of which is connected to first input of phase detector, devices for input and output of electromagnetic wave into pipeline connected with main output of third directional coupler and to second input of phase detector, frequency multiplier, connected by input to additional output of second directional coupler, and by output to input of first directional coupler, a generator of acoustic vibrations, acoustic vibration radiator and receiver, directed at an angle α to flow direction, second mixer, first input of which is connected to output of acoustic receiver, wherein output of acoustic vibration generator is connected to acoustic radiator and to second input of mixer, frequency discriminator, connected by first input to output of second mixer, and by second input to output of first mixer, and by output to control input of acoustic generator, wherein computing unit is also connected to output of acoustic generator.

EFFECT: technical result is higher accuracy of measurement.

1 cl, 1 dwg