The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 30, 1996
Filed:
Sep. 30, 1994
Thomas Zingg, Basel, CH;
Endress+Hauser Flowtec AG, , CH;
Abstract
To minimize the material consumption for coils, their pole pieces, and the magnetic return path in electromagnetic flow sensors with reduced overall length and nominal diameters between 200 mm and 700 mm, a measuring tube is provided through which flows an electrically conductive fluid to be measured, and which has at least two measuring electrodes. At the measuring tube, means are provided for generating a magnetic field passing through the measuring tube which comprise: coils, coil cores, and pole stampings which are disposed diametrically opposite to each other on the outside surface of the measuring tube and extend on both sides of the respective coil in the circumferential direction, with their ends separated by a sufficient distance, and two magnetic return-path stampings each disposed on the outside surface of the measuring tube on one side of the coils and the pole stampings and completely surrounding the measuring tube and magnetically coupled via the coil cores to the pole stampings. The coils, coil cores, pole stampings, and return-path stampings are surrounded with an enclosure. For nominal diameters above 500 mm, two pairs of coil sections are provided.