FIELD: physics.
SUBSTANCE: coriolis flow metre has a balancing structure (410) having a torsional element (430) and a balancing element (432). Two ends of the torsional element are attached to the connection section of one curvilinear flow metre pipe (408) and vibrate together with the pipe. The balancing element (432) is perpendicularly attached to the central section of the torsional element (430) in the direction towards the centre of the connection section of the flow metre pipe. Supporting arms (438) for holding a driving device are attached to the balancing element (432). The ends of the torsional element are configured to vibrate in phase with the flow metre pipe, and the central section of the torsional element is configured to vibrate antiphase with the flow metre pipe. As a result, the torsional element is deformed when twisted along the axis of torsional oscillations. Deviation of the torsional element (430) is used to balance vibration of the flow metre pipe (308).
EFFECT: high measurement accuracy of Coriolis flow metre with one curvilinear pipe in a wide range of density of flowing materials.
31 cl, 10 dwg
