A flowmeter comprising a measuring element, wherein the measuring element comprises: a flow channel with a continuous inlet opening and a continuous outlet opening, wherein the flow channel has a continuous surface which surrounds a flow volume and which is interrupted only by the inlet opening and the outlet opening, and a sensor element arranged in the flow volume, wherein the flowmeter further comprises: a drive device, by means of which the sensor element may be driven to rotate about a rotation axis, and also a force-measuring device, which is configured to measure at least one value selected from the following values: a force on the sensor element, a control variable dependent on a force on the sensor element, a displacement of the sensor element against a counter force, a control variable dependent on a displacement of the sensor element against a counter force, a force caused by the sensor element, and/or a control variable dependent on a force caused by the sensor element, characterized in that the sensor element has at least one magnetic or magnetized region (7a, 7b), and the flowmeter has at least one magnet assembly, which comprises at least one electromagnet (10a-10h), the at least one electromagnet is part of the drive device, and the at least one electromagnet may be supplied with an alternating current so that the sensor element is driven to rotate, wherein the at least one magnet assembly is arranged outside the flow channel. a flow channel with a continuous inlet opening and a continuous outlet opening, wherein the flow channel has a continuous surface which surrounds a flow volume and which is interrupted only by the inlet opening and the outlet opening, and a sensor element arranged in the flow volume, wherein the flowmeter further comprises: a drive device, by means of which the sensor element may be driven to rotate about a rotation axis, and also a force-measuring device, which is configured to measure at least one value selected from the following values: a force on the sensor element, a control variable dependent on a force on the sensor element, a displacement of the sensor element against a counter force, a control variable dependent on a displacement of the sensor element against a counter force, a force caused by the sensor element, and/or a control variable dependent on a force caused by the sensor element, characterized in that the sensor element has at least one magnetic or magnetized region (7a, 7b), and the flowmeter has at least one magnet assembly, which comprises at least one electromagnet (10a-10h), the at least one electromagnet is part of the drive device, and the at least one electromagnet may be supplied with an alternating current so that the sensor element is driven to rotate, wherein the at least one magnet assembly is arranged outside the flow channel. a drive device, by means of which the sensor element may be driven to rotate about a rotation axis, and also a force-measuring device, which is configured to measure at least one value selected from the following values: a force on the sensor element, a control variable dependent on a force on the sensor element, a displacement of the sensor element against a counter force, a control variable dependent on a displacement of the sensor element against a counter force, a force caused by the sensor element, and/or a control variable dependent on a force caused by the sensor element, characterized in that the sensor element has at least one magnetic or magnetized region (7a, 7b), and the flowmeter has at least one magnet assembly, which comprises at least one electromagnet (10a-10h), the at least one electromagnet is part of the drive device, and the at least one electromagnet may be supplied with an alternating current so that the sensor element is driven to rotate, wherein the at least one magnet assembly is arranged outside the flow channel.