Dielectric viscometer including fixed and variable cells

Details Dielectric viscometer including fixed and variable cells Dielectric viscometer including fixed and variable cells

1992-06-22

1994-01-18

Williams, Hezron E.

Measuring and testing

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

Viscosity

G01N 1100

Patent

active

052791491

ABSTRACT:
A parallel plate dielectric viscometer is provided for measuring the viscty of a substance having differing substance dielectric properties at differing substance viscosities. Two electrodes are disposed in opposition to each other forming a variable dielectric cell having a dielectric distance between the electrodes. The viscosity of the substance is varied and force is applied to the substance to vary the dielectric distance according to the varying viscosity. The rate of change of the dielectric distance with respect to time is used to determine the viscosity of the substance. The viscosity may be varied by heating the substance and force may be applied to the substance by way of one of the electrodes such that the dielectric distance between the electrodes decreases as the substance becomes more viscous. A fixed cell may also be provided in order to correct for the effects of chemical changes in the substance.

REFERENCES:
patent: 3864961 (1975-02-01), Cessna, Jr.

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