公开(公告)号：US09322687B2

公开(公告)日：2016-04-26

申请号：US14455978

申请日：2014-08-11

Applicant: ABB TECHNOLOGY AG

Inventor： Harald Grothey ,  Holger Seebode ,  Markus Brode

IPC: G01F1/56 ,  G01F1/58

CPC classification number: G01F1/584 ,  G01F1/58 ,  G01F1/588

Abstract: The present disclosure relates to a magnetic-inductive flow meter having a measuring tube on which there is fitted a magnetic unit for generating a magnetic field, which is aligned substantially perpendicular to a flow direction of an electrically conductive measuring medium flowing through the measuring tube and whose measurement voltage induced in the measuring medium can be detected by at least two inserted measuring electrodes electrically insulated from the measuring tube. In order to avoid coupling interference voltages into the electrical electrodes, the first and the second electrode leads can be jointly twisted starting from the leadthrough as far as the first electrode, where the first electrode lead is electrically connected to the first electrode, and the second electrode is connected to a short-circuited conductor loop which encompasses the measuring tube and is connected to the second electrode lead at a location of the first electrode.

Abstract translation: 本发明涉及一种具有测量管的磁感应流量计，其上安装有用于产生磁场的磁性单元，该磁性单元基本上垂直于流过测量管的导电测量介质的流动方向排列， 在测量介质中感应的测量电压可以通过与测量管电绝缘的至少两个插入的测量电极来检测。 为了避免将干扰电压耦合到电极中，第一和第二电极引线可以从引线开始直到第一电极共同扭转，其中第一电极引线电连接到第一电极，第二电极引线与第一电极电连接 电极连接到包围测量管的短路导体回路，并且在第一电极的位置连接到第二电极引线。