Patent ID: 6170339
Filing Date: 2001-01-09
Classification: G01F

Abstract:
A mass flowmeter that operates according to the Coriolis principle, with an essentially straight Coriolis tube that conducts a flowing medium, with at least two oscillation drivers assigned to the Coriolis tube and which excite the Coriolis tube, with at least one detector assigned to the Coriolis tube and which registers Coriolis forces or Coriolis oscillations caused by Coriolis forces, and with a shell that encloses the Coriolis tube, wherein the Coriolis tube is flexibly mounted by an inlet and outlet in the shell, the at least two oscillation drivers excite the ends of the Coriolis tube to wavering motions around the longitudinal axis of the Coriolis tube, and the wavering motions of one half of the Coriolis tube are shifted in phase by 180.degree. with respect to the wavering motions of the other half of the Coriolis tube.