Coating weight measuring and control apparatus and method
US4957770A · kind A · utility
62Cited by
9References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 27, 1989 |
| Grant date | Sep 18, 1990 |
| Priority date | — |
| Expiry date | Jan 27, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B11/0616
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.