ELECTROMAGNETIC FLOW TRANSDUCER Russian patent published in 2009 - IPC G01F1/58 

FIELD: physics.

SUBSTANCE: magnetic circuit represented with two inductance coils is mounted on external surface of measuring tube made of dielectric material with two in-built electrodes. The tube is arranged in iron body which contains framed joint box whereto coil and electrodes wires are delivered through frame cavity. Stainless-steel earth rings are mounted on flanges attaching the measuring tube to the body, being grooved through the external diameter and penetrating the recesses through the internal diameter at end faces of the measuring tube. Flange gasket is provided with trapezoid fluoroplastic ring installed between the flange and the bevelled fit ring. The body interior is filled with silicone foamed polymerised normally. Filling material is good adhesive to the internal surfaces of the body and the measuring tube and completely compatible to isolation of coil winding wire and lead-outs.

EFFECT: reliable flowmeter performance at wide range of temperatures and pressures.

2 dwg