APPARATUS FOR MEASURING THE VOLUMETRIC AND MASS FLOW OF A MEDIUM IN A PIPELINE

摘要

The invention relates to an apparatus for measuring the volumetric or mass flow of a medium (5) in a pipeline (11), said apparatus having a measuring tube through which the medium (5) flows in the direction of the measuring tube axis (3), wherein the measuring tube (4) has a first end region (7) and a second end region (8) in the direction of flow (S) of the medium (5), having a magnetic system (9) which generates a magnetic field (B) which penetrates the measuring tube (4) and runs essentially transverse to the measuring tube axis, having at least one measuring electrode (10) which is coupled to the medium (5) and is arranged in a region of the measuring tube (4) that is essentially perpendicular to the magnetic field, and having a control/evaluation unit (11) which uses the measurement voltage (U) which is induced in the at least one measuring electrode (10) to provide information relating to the volumetric or mass flow of the medium (5) in the measuring tube (4). In order to keep the costs of the magnetoinductive flowmeter low, the measuring tube (4) is integral and the first end region (7) and the second end region (8) of the measuring tube (4) are flanged.