Method and apparatus for testing fibres
US7705985B2 · kind B2 · utility
1Cited by
3References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 20, 2005 |
| Grant date | Apr 27, 2010 |
| Priority date | — |
| Expiry date | Nov 23, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/21
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present disclosure relates to a method for measuring the maturity or cell wall thickening of a sample of cellulosic fiber. The method at least includes exposing the sample of fiber to polarized light, capturing one or more images of the sample through crossed polar lenses and a compensator plate so that the image(s) include interference colors from the sample; and conducting computer analysis on the captured image(s) to determine the maturity or degree of cell wall thickening of the cellulosic fiber by comparing the image(s) to reference color interference data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.