Coating weight measuring and control apparatus and method

Details Coating weight measuring and control apparatus and method Coating weight measuring and control apparatus and method

1989-01-27

1990-09-18

Chiesa, Richard L.

Coating processes

Measuring, testing, or indicating

Thickness or uniformity of thickness determined

73159, 118419, 118429, 118665, 118688, 162198, 162263, 162265, 250339, 4274342, B05C 1110

Patent

active

049577700

ABSTRACT:
A sensor and a method for determining the basis weight of coating material on a substrate is described. The determined basis weight is insensitive to changes in the amount of substrate material underlying the coating. Signals from the sensor may be used in the control of a coating mechanism to provide a coating having a uniform basis weight.

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patent: 4732776 (1988-03-01), Bossevain
patent: 4789820 (1988-12-01), Parrent, Jr. et al.
patent: 4840706 (1989-06-01), Campbell

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