Measuring and testing – Liquid analysis or analysis of the suspension of solids in a... – Viscosity
Patent
1987-03-17
1988-07-05
Levy, Stewart J.
Measuring and testing
Liquid analysis or analysis of the suspension of solids in a...
Viscosity
73 59, G01N 1116
Patent
active
047546409
ABSTRACT:
A rheometer for determining the viscoelasticity of a liquid from the mechanical impedance which the liquid presents to an oscillating surface. The incremental power required to maintain a fixed amplitude of oscillation of the surface upon immersion in the liquid is determined. The differential shift in oscillation frequency due to immersion in the liquid is also determined. By relating (i) the incremental oscillation power to mechanical resistance presented by the liquid to the oscillating surface, and (ii) the differential shift in a oscillation frequency to the mechanical reactance presented by the liquid to the oscillating surface, the viscoelasticity of the liquid is determined. Applications include laboratory measurements and process control.
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Fitzgerald J. Vincent
Matusik Frank J.
Nelson Donald W.
Schrag John L.
Lessler Arthur L.
Levy Stewart J.
National Metal and Refining Company, Ltd.
Williams Hezron E.
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