Patent ID: 7798015

Claim:
A measuring tube to serve for the conveying of an electrically conductive fluid in a magneto-inductive flowmeter, said measuring tube being composed, at least partially, of a magnetically conductive material having a relative permeability, which is greater than 10, at least one field coil arranged outside on the measuring tube or in the vicinity thereof; and at least two measuring electrodes are arranged on an inside of the tube wall of the measuring tube, the region of the measuring tube containing said at least two measuring electrodes is composed of the magnetically conductive material, wherein: a central tube segment of the measuring tube is composed, along a self-closing periphery of the measuring tube, of said magnetically conductive material; and/or said magnetically conductive material is distributed essentially over an entire length of the measuring tube; and/or said magnetically conductive material is distributed essentially over an entire periphery of the measuring tube.