On-line viscosity measurement system

Details On-line viscosity measurement system On-line viscosity measurement system

G - Physics

01

N

G01N 11/08 (2006.01)

Patent

CA 2300031

An improved method and apparatus for determining fluid viscosity comprises conveying substantially fully developed, uni-directional, and undisturbed fluid flow through a differential pressure measurement section and flow rate measuring means connected in line with, but separated from, the differential pressure measurement section. A preceding flow tube section is connected to the inlet of the differential pressure measurement section, and a succeeding flow tube section is connected to the outlet of the differential pressure measurement section so that entrance and exit flow effects are avoided in the measurement section. Differential pressure measured in substantially undisturbed, uni-directional, and fully developed fluid flow results in improved accuracy of viscosity calculation using the Hagen-Poiseuille equation.

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