Apparatus for determining the density of a fluid

Details Apparatus for determining the density of a fluid Apparatus for determining the density of a fluid

1975-04-28

1976-05-11

Gill, James J.

Measuring and testing

Specific gravity or density of liquid or solid

G01N 900

Patent

active

039554015

ABSTRACT:
Apparatus for determining the density of a liquid comprises a resilient tube coupled at each end through resilient couplings to support flanges for connection in a pipeline or the like. Two cantilevers of the same material and cross section as the tube are secured to the tube so that they have a common axis parallel to that of the tube and their free ends are directed towards each other. The tube and cantilever are so excited that they vibrate in antiphase at the same transverse frequency of vibration, the frequency of the vibration being dependent upon the density of liquid in the tube. The cantilevers are provided with an annular collar at their free ends such that when the tube is filled with a liquid of a predetermined density the root shear force and bending moment of each cantilever cancels those of the tube.

REFERENCES:
patent: 2635462 (1953-04-01), Poole et al.
patent: 3444723 (1969-05-01), Wakefield

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