Viscosity measuring apparatus and method

Details Viscosity measuring apparatus and method Viscosity measuring apparatus and method

1997-03-19

1998-12-08

Williams, Hezron E.

Measuring and testing

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

Viscosity

73 5404, 73 5414, G01N 1104, A61B 500

Patent

active

058472681

ABSTRACT:
A forced flow viscosity measuring apparatus includes within a housing (13), a thermostatic air chamber (11), a measurement capillary (38) and a needle (60) in fluid communication with the capillary each contained in the chamber, and a variable speed drive mechanism (14) which dries such needle into the liquid at a speed that maintains the pressure differential constant across the length of same measurement capillary to which is attached a pressure measuring device (30) and the needle (60), and a control circuit (50). The control circuit (50) computes viscosity as a function of sensed needle (60) velocity, sensed constant pressure differential and the parameters of the capillary.

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