| 摘要 |
PCT No. PCT/EP88/01060 Sec. 371 Date Jul. 18, 1990 Sec. 102(e) Date Jul. 18, 1990 PCT Filed Nov. 19, 1988 PCT Pub. No. WO90/05894 PCT Pub. Date May 31, 1990.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.
|
