Patent ID: 9121740
Filing Date: 2015-09-01
Classification: G01F,Y10T

Abstract:
1. A magnetic-inductive flow meter, comprising: at least one measurement tube for through-flow of an electrically conductive medium, the measurement tube having a metallic base body provided with a thermoplastic cover layer at least inside of the measurement tube, at least one magnetic field generating apparatus for generating a magnetic field which permeates the measurement tube perpendicular to a longitudinal axis of the measurement tube, and at least two measurement electrodes, a virtual connecting line of the at least two measurement electrodes running at least essentially perpendicular to the direction of the magnetic field, the measurement electrodes penetrating the measurement tube at penetration sites, wherein a liquid-tight connection is provided at the penetration sites by a heat seal having been formed between the thermoplastic cover layer of the measurement tube and the measurement electrodes, and wherein the thermoplastic cover layer extends through said penetration sites forming said liquid-tight connection peripherally surrounding the electrodes and filling a gap formed between an outside diameter of the measurement electrodes and an inside diameter of the penetration sites.