Means of enhancing the sensitivity of a gloss sensor

Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system

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356446, G01N 2186

Patent

active

049452533

ABSTRACT:
A gloss sensor for optically measuring the gloss or reflectance of a surface. The gloss sensor includes a light source of emitting a light beam toward a surface to be measured. The gloss sensor also includes a light detecting device arranged to preferentially detect the intensity of the diffusely reflected component of the reflected light beam relative to the specularly reflected component.

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"New Gloss Tests of Paper Products", by Richard S. Hunter, TAPPI, Jan. 1955, vol. 38, No. 1, pp. 17-24.

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