FLOW METER

摘要

The invention concerns a device for measuring amounts of fluids, in particular liquid fuels in petrol pumps, with at least two interengaging screw spindles through which a liquid can flow in the axial direction and which are each mounted at the ends in a housing so as to rotate with easy action. The housing comprises a measuring chamber through which liquid can flow and in which an exciter disc, which is rigidly connected to one of the spindles, can rotate in order to cooperate with a detector at the housing end. According to the invention, in order to provide a flow meter which is favourable from the point of view of manufacturing technology and whose operation is improved, the exciter disc (4) comprises a plurality of magnets (5) which are disposed in a circle and act in the axial direction of the disc (4). In given regions the exciter disc (4) penetrates a gap (13) in the housing where at least two magnet-sensitive detectors (6, 6') disposed in the wall region (13') of the gap engage above or below the disc.