Optics: measuring and testing – Oil testing
Patent
1995-11-09
1998-02-17
Font, Frank G.
Optics: measuring and testing
Oil testing
356 73, 250301, G01N 3328, G01N 2100, G01T 1167
Patent
active
057196656
ABSTRACT:
A method of determining the content of insolubles in oils using (a) a relation for measuring either absorbance or transmittance from the intensity of transmitted light, (b) a calibration curve for determining the content of insolubles on calibration curve in an oil sample of interest from a measured intensity of scattered light as obtained with a standard sample, (c) the first correlationship for determining the first coefficient of quantification for correcting the effects of the color intensity of the oil sample and the content of insolubles in it, and (d) the second correlationship for determining the second coefficient of quantification for correcting the effects of the particle size distribution of the insolubles and an apparatus for determining the content of insolubles in oils including basically a light source, an interference filter, a sample cell, a measuring device for the intensities of scattered and transmitted components from a sample, a computing unit for performing processing operations based on the correcting procedures, and a sample cell holder.
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Cosmo Oil Co. Ltd.
Cosmo Research Institute
Font Frank G.
Vierra-Eisenberg Jason D.
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