Process colorimeter

Details Process colorimeter Process colorimeter

G - Physics

01

J

73/56

G01J 3/50 (2006.01) G01J 1/30 (2006.01) G01J 3/10 (2006.01)

Patent

CA 1197992

ABSTRACT A colorimeter for measuring color of an object, in particular for measuring the color of liquids such as paints in a process stream. In the colorimeter, a single analytical light beam, with its blue and red intensity ratio controlled through a feedback loop, is directed to a sample whose color is being measured. A portion of the analytical light beam is reflected from the sample into a grating monochromator which disperses the light beam into its spectra. A detector array is attached to the monochromator which converts the spectra of the light beam into discrete signals which are then multiplexed with instrument status and reference color signals into an A/D converter. The output of the A/D converter is then fed directly to a computer programmed to directly provide standard color values.

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