Apparatus for controlling the degree of paper fiber variation
US5622602A · kind A · utility
9Cited by
4References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 13, 1994 |
| Grant date | Apr 22, 1997 |
| Priority date | — |
| Expiry date | Dec 13, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30124
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus for controlling the degree of fiber variations in paper sheet has a formation meter for receiving an image of transmitted light on one side of an area of paper from a light source located on the other side of the area of paper, an image processing computing element for introducing the image from said formation meter for image processing and a fuzzy control unit for calculating and outputting optimum J/W ratio, optimum foil angle, and optimum deflector pushing degree and angle on the basis of results of image processing from said image processing computing element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.