Apparatus and method for measuring the viscosity of a liquid

Details Apparatus and method for measuring the viscosity of a liquid Apparatus and method for measuring the viscosity of a liquid

1983-10-11

1985-08-13

Levy, Stewart J.

Measuring and testing

Liquid analysis or analysis of the suspension of solids in a...

Viscosity

G01N 1114

Patent

active

045342105

ABSTRACT:
In the method, part of the liquid flow in a circuit is continuously withdrawn. A substantially constant head is established in the liquid drawn off, and at least some of this liquid is allowed to flow under gravity at a constant rate past a rotor rotated by a motor, so causing drag on the rotor in accordance with its viscosity. An operationing characteristic of the motor, such as its speed or the current which it draws, is monitored to provide an indication of the viscosity of the liquid. The constant head is established in one limb of a U-shaped chamber by means of a weir set at a predetermined height above the rotor, which is arranged in a downwardly directed passage surrounded annularly by the other limb of the chamber.

REFERENCES:
patent: 2171312 (1939-08-01), Meyers
patent: 3057187 (1962-10-01), Read et al.
patent: 3488995 (1970-01-01), Zimmerman
patent: 3777551 (1973-12-01), Weiss
patent: 4151744 (1979-05-01), Hemmings

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