ELECTROMAGNETIC LIQUID FLOW METER Russian patent published in 2013 - IPC G01F1/58 

FIELD: measurement equipment.

SUBSTANCE: flow meter consists of a metering tube with a stiff section of a channel, which is made from dielectric material. On outer surface of the tube there mounted is a magnetic conductor in the form of two inductance coils and four electrodes, two in horizontal plane and two in vertical plane in relation to the measuring tube axis. Electrodes installed in vertical plane serve for measurement of electric conductivity of liquid in a pipeline. A sensor for measurement of magnetic field level inside the tube channel is installed on outer surface of the measuring tube. The measuring tube is located in a steel housing on which an electronic unit is fixed on a rack. Wires from coils, electrodes and the sensor are taken out through a cavity in the rack to the electronic unit and unsoldered on a printed circuit board. External connection of an item is made to connectors installed on the electronic unit housing. Screens from non-magnetic material, which are made with an air gap, are installed on electrodes and inductance coils. Screens are earthed. An end seal of the measuring tube is provided with a rubber ring.

EFFECT: high accuracy and operating stability of an item and reliable operation in wide range of temperatures and pressures.

2 dwg