초록 ▼

An electromagnetic flow meter consists of a metering tube made of an electrically non-conductive material and having a thick outer wall. The tube has at least two measuring electrodes and at least two magnetic poles, each of which is disposed in a blind bore of the tube. The poles are linked to one

An electromagnetic flow meter consists of a metering tube made of an electrically non-conductive material and having a thick outer wall. The tube has at least two measuring electrodes and at least two magnetic poles, each of which is disposed in a blind bore of the tube. The poles are linked to one another by a yoke fitted with a magnetic coil. To achieve greater measuring precision both the yoke and the magnetic coils are mounted in a recess inside the outer surface of the metering tube. The recesses are in the form of through holes and grooves. When fully assembled all magnet components are disposed inside the outer surface of the metering tube.

대표청구항 ▼

An electromagnetic flow meter comprising a metering tube having an axially extending flow-through bore and a relatively thick wall surrounding the bore terminating at and defining an exterior surface of the tube, the tube including first and second blind openings extending from the exterior surface

An electromagnetic flow meter comprising a metering tube having an axially extending flow-through bore and a relatively thick wall surrounding the bore terminating at and defining an exterior surface of the tube, the tube including first and second blind openings extending from the exterior surface into the tube and terminating proximate the flow-through bore, a passage way generally parallel to and spaced from the blind openings, extending through the tube and terminating at the exterior surface, and open grooves formed in the exterior surface of the tube and in communication with ends of the blind openings and ends of the passage way, the blind openings, the passage way and the open grooves being prefabricated from an electrically non-conductive material, first and second magnetic pole pieces disposed in the blink openings, a yoke interconnecting the pole pieces and disposed in the passage way and the open grooves, a magnetic coil operatively connected with the yoke an disposed in at least one of the passage way and the grooves, and at least two measuring electrodes operatively positioned in the metering tube relative to the flow-through bore.