Color measuring and control device

G - Physics – 01 – J

Patent

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G01J 3/46 (2006.01) B07C 5/342 (2006.01) G01J 3/02 (2006.01) G01N 21/27 (2006.01) G01N 21/84 (2006.01)

Patent

CA 1273820

ABSTRACT A color detecting device comprising a head (14) supported on an arm (30) for oscillatory motion over the product (11) being color measured to render a signal responsive to the average color of the product. A height detector (44) provides a signal indicating the distance between the product and head and is used to modify the color signal accordingly. A temperature sensor (39) in the head indicates an overtemperature condition for causing movement of the head away from the product. The screen (17) transparency is measured by the indicator (47, 48) to indicate when the screen is dirty.

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