Viscosity measuring system

Details Viscosity measuring system Viscosity measuring system

G - Physics

01

N

73/51.5

G01N 33/28 (2006.01) G01N 11/00 (2006.01) G01N 33/30 (2006.01)

Patent

CA 1083849

ABSTRACT OF THE DISCLOSURE A method for measuring the viscosity of a lubricant fluid under very high pressures by placing a sample of lubricant containing one or more ruby crystals (?10µm diameter) in a diamond anvil cell illuminated with a point source of visible light radiation, and observing by means of appropriate optics the rate of change of band width of the ruby emission spectra at given temperatures and pressures as a measure of the viscosity of the fluid.

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