Device for measuring the viscosity of a fluid

Details Device for measuring the viscosity of a fluid Device for measuring the viscosity of a fluid

1998-11-30

2000-06-13

Williams, Hezron

Measuring and testing

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

Viscosity

73196, 7386152, G01N 1104, G01F 700, G01F 137

Patent

active

060734833

ABSTRACT:
A device for measuring the viscosity of a fluid includes a viscosensitive unit through which the fluid flows under laminar flow conditions, a first turbulent flow flowmeter in series with the viscosensitive unit, and a second turbulent flow flowmeter shunting at least the viscosensitive unit. The flowmeters are adapted to determine the head loss .DELTA.p and the flowrate q of the fluid through the viscosensitive unit, the dynamic viscosity .mu. being given by the equation .mu.=.DELTA.p/kq where k is a constant dependent on the viscosensitive unit. The device is applicable to accurate measurement of fluid volumes.

REFERENCES:
patent: 4384472 (1983-05-01), Tournier
patent: 4961344 (1990-10-01), Rodder
patent: 5056357 (1991-10-01), Dymling et al.
patent: 5172585 (1992-12-01), Gleissle
patent: 5359881 (1994-11-01), Kalotay et al.
patent: 5447440 (1995-09-01), Davis et al.
patent: 5661232 (1997-08-01), Van Cleve et al.
patent: 5861566 (1999-01-01), Van Cleve et al.
Patent Abstracts of Japan, vol. 095, No. 008, Sep. 29, 1995, & JP 07 128211 A (Dainippon Ink & Chem. Inc.) May 19, 1995.
Kalotay P., et al., "On-Line Viscosity Measurement with Coriolis Mass Flow Meters", Advances in Instrumentation and Control, vol. 46, No. Part 2, Jan. 1, 1991, pp. 1029-1039, XP000347545.

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