Vortex fluid meter incorporating a double obstacle

Details Vortex fluid meter incorporating a double obstacle Vortex fluid meter incorporating a double obstacle

1996-09-19

1999-12-21

Dombroske, George M.

Measuring and testing

Volume or rate of flow

By measuring vibrations or acoustic energy

G01F 132

Patent

active

060033835

ABSTRACT:
A vortex fluid meter (1) includes a pipe portion (2) of constant inside diameter in which the fluid flows, at least two obstacles disposed in the middle of the flow of the fluid in said pipe portion (2) each having a generally elongate shape with longitudinal and transverse dimensions perpendicular to the direction of flow of the fluid, and adapted to generate oscillatory fluid vortices, an upstream obstacle (4) having a substantially uniform trapezoidal transverse section and a downstream obstacle (6) having a generally T-shape transverse section, and means (10, 12, 14) for detecting the signal corresponding to the oscillations of said vortices and for deducing therefrom the fluid volume or flowrate.

REFERENCES:
patent: 4142407 (1979-03-01), Kuroiwa et al.
patent: 4453416 (1984-06-01), Knudsen
patent: 4891989 (1990-01-01), Misumi et al.
patent: 5052229 (1991-10-01), Tanimura et al.
patent: 5150619 (1992-09-01), Turner et al.
patent: 5398548 (1995-03-01), Ono
patent: 5569859 (1996-10-01), Gatzmanga et al.

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