S-tube Coriolis force flow meter

Details S-tube Coriolis force flow meter S-tube Coriolis force flow meter

1985-04-22

1986-12-16

Ruehl, Charles A.

Measuring and testing

Volume or rate of flow

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

G01F 184

Patent

active

046287442

ABSTRACT:
A flowmeter comprised of a substantially S-shaped tube extending to a rigidly anchored inlet tube at one extremity and to a rigidly anchored outlet tube at the other extremity and at least one electromagnetic vibrator disposed at the midsection of the S-shaped tube that imposes low amplitude high frequency oscillatory flexural movements on the inlet tube-S-tube-exit tube combination having two fixed ends in the direction substantially perpendicular to the plane including the S-tube, which oscillatory flexural movements interacting with the fluid moving through the S-tube produces fluid dynamic Coriolis forces that twists the S-tube about an axis substantially tangential to the central axis of the S-tube at the midsection of the S-tube. The amount of twist of the S-tube is directly related to the time rate of mass flow through the S-tube and, consequently, the time rate of mass flow can be measured by measuring the amount of twist of the S-tube.

REFERENCES:
patent: 4491025 (1985-01-01), Smith et al.
patent: 4559833 (1985-12-01), Sipin

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