Abstract: An electromagnetic flowmeter includes at least one primary pair of coils, at least one secondary pair of coils and a transmitter, wherein the at least one primary pair of coils generates at least one magnetic field within a measuring section for measuring the volumetric flow of fluid, where the at least one secondary pair of coils can be excited independently in relation to the at least one primary pair of coils, where the transmitter is configured to excite the secondary pairs of coils to generate at least one secondary magnetic field upon detection of a predefined event, where the generated at least one secondary magnetic field interacts with at least one magnetic field from the at least one magnetic field generated by the primary pairs of coils to improve at least one of a magnetic field homogeneity or magnetic field strength in a measuring of the flowmeter.

Abstract: An electromagnetic flowmeter includes a measuring section configure to permit flow of fluid through the electromagnetic flowmeter, a plurality of pairs of coils installed on the circumference of the measuring section, and a transmitter which provides at least one driving current to excite the plurality pairs of coils, wherein the plurality of pairs of coils includes a first pair of coils capable of generating a first magnetic field within the measuring section, and a second pair of coils capable of generating a second magnetic field within the measuring section, where the first and second pairs of coils from the plurality of pairs of coils are installed along a first plane of the measuring section, and where the first plane is perpendicular to the flow of the fluid in the measuring section.

Abstract: A rod-shaped measuring electrode (6, 7) for a magnetic-inductive flow meter includes an end face (15) provided at one end of the rod for contact with a measuring medium and includes a plurality of layers (17) made alternately of a ceramic coating (18) and a metal coating (19) extending in the longitudinal direction of the rod over the length thereof.