Coating weight measuring and control apparatus
US5795394A · kind A · utility
43Cited by
9References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 2, 1997 |
| Grant date | Aug 18, 1998 |
| Priority date | — |
| Expiry date | Jun 2, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01G17/02
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A sensor and a method for determining the basis weight of a coating material containing CaCO.sub.3 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.