Coriolis flowmeter having corrugated flow tube

Details Coriolis flowmeter having corrugated flow tube Coriolis flowmeter having corrugated flow tube

1997-05-30

1998-09-29

Chilcot, Richard

Measuring and testing

Volume or rate of flow

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

G01F 184

Patent

active

058147390

ABSTRACT:
A Coriolis flowmeter having flow tubes with corrugations in the dynamically active portion of the flow tubes. The corrugations increase the flexibility of the flow tubes so that they are more responsive to the generated Coriolis forces. This enhances the flowmeter sensitivity. Corrugations in a straight flow tube also reduce thermally induced stresses on the flow tube when its axial length is constrained by a surrounding case or balance bar to which the flow tube ends are affixed. Corrugations may be selectively positioned on the flow tube to control the flow tube vibrational response for the fundamental drive mode as well as harmonics thereof.

REFERENCES:
patent: 3329019 (1967-07-01), Sipin
patent: 4840071 (1989-06-01), Lew
patent: 5078014 (1992-01-01), Lew
patent: 5323658 (1994-06-01), Yao et al.
patent: 5359881 (1994-11-01), Kalotay et al.
patent: 5448921 (1995-09-01), Cage et al.
patent: 5476013 (1995-12-01), Hussain et al.
patent: 5663509 (1997-09-01), Lew et al.

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