Single path radial mode Coriolis mass flow rate meter

Details Single path radial mode Coriolis mass flow rate meter Single path radial mode Coriolis mass flow rate meter

1993-12-15

1994-12-20

Snow, Walter E.

Measuring and testing

Volume or rate of flow

Mass flow by imparting angular or transverse momentum to the...

7386118, G01F 178

Patent

active

053737458

ABSTRACT:
A flow meter apparatus for measuring the mass flow rate of a fluid using the Coriolis principle. A single straight flow conduit is employed which is vibrated in a radial-mode of vibration. Coriolis forces are thereby produced along the walls of the flow conduit which deform the conduit's cross-sectional shape as a function of mass flow rate. Additional embodiments are disclosed employing vibration of selected portions of the flow conduit walls. In addition, a method is described to determine the pressure and the density of a fluid by simultaneously vibrating a flow conduit in two modes of vibration and thereby determining pressure and density based on changes in each frequency.

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