Magnetic-Inductive Flowmeter

A magnetic-inductive flowmeter, comprising:

• a measuring tube for guiding an electrically conductive medium;
• a magnetic field device including a plurality of coils for generating a magnetic field which passes through the measuring tube at least partially perpendicularly to the flow direction of the medium;
• a magnetic field guiding device for guiding the magnetic field region by region outside the measuring tube with measuring electrodes for tapping at least one measurement voltage induced in the medium;
• and
• a control and evaluation unit for generating the magnetic field by energizing at least one of the coils and for evaluating the measurement voltage to give a flow measurement value;
• wherein the magnetic field guiding device extends in circumferential direction closed around the measuring tube;
• wherein the coils are arranged distributed over the circumference of the magnetic field guiding device and the magnetic field guiding device acts as a coil core in the region of the coils, so that the coils are also arranged with their coil longitudinal axes in the circumferential direction with respect to the measuring tube;
• and
• wherein at least three coils and at least three measuring electrodes are provided and wherein each of the measuring electrodes is arranged between two coils in the radial direction as viewed from the center of the measuring tube.