Patent ID: 6138517
Filing Date: 2000-10-31
Classification: B06B,G01F,G01N

Abstract:
Mass flowmeter for measuring by means of the Coriolis principle both mass and density of a fluid flowing in pipes and establishing oscillations in the pipes, said mass flowmeter comprising an inlet and an outlet for the fluid, at least one measuring pipe being located between the inlet and the outlet, said measuring pipe having sensors for the detection of movements in the measuring pipe in the form of fluid flow through the measuring pipe, said sensors comprising at least one magnet fixed to the measuring pipe and at least one coil fixed to a coil supporting plate, at least one of the coils comprising at least one first winding and one second winding, the first winding being wound in one direction around a longitudinal axis, the second winding being wound in another, and in relation to the first winding, opposite direction around the longitudinal axis, the first winding and the second winding being located axially in relation to each other along the longitudinal axis, and the first winding being connected in series with the second winding.