Measuring and testing – Liquid analysis or analysis of the suspension of solids in a... – Viscosity
Patent
1980-01-10
1981-07-14
Goldberg, Gerald
Measuring and testing
Liquid analysis or analysis of the suspension of solids in a...
Viscosity
137804, G01N 1104, G01N 3330
Patent
active
042779715
ABSTRACT:
A fluidic oil viscometer for determining the degradation of machinery lubating oils compares the viscosity of the machinery oil with the viscosity of another fluid, such as air. Both the viscosity of the air and the viscosity of the oil are sensed, using capillary-orifice combination sensors, and the air viscosity reading is amplified using a series of laminar proportional amplifiers to equalize its change in viscosity with that of oil. The outputs of the capillary orifice combination sensors are applied to two different pressure gauges, the difference between these two pressure gauges represents the viscosity breakdown. This difference will be independent of temperature.
REFERENCES:
patent: 3616809 (1971-11-01), Laakaniemi et al.
patent: 3678733 (1972-07-01), Blatter
patent: 3744315 (1973-07-01), Hirs
patent: 3952576 (1976-04-01), Drzewiecki
patent: 4120322 (1978-10-01), Bowles
Drzewiecki Tadeusz M.
Phillippi Richard M.
Edelberg Nathan
Elbaum Saul
Gibson Robert P.
Goldberg Gerald
Roskos Joseph W.
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