Method and device for detecting undesired matter in eggs
US6504603B1 · kind B1 · utility
8Cited by
5References
26Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 11, 2000 |
| Grant date | Jan 7, 2003 |
| Priority date | — |
| Expiry date | Feb 11, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/085
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Described is a method for determining whether a brown egg contains undesired matter such as blood. In two wavelength ranges the transmission of the egg is examined, one of those wavelength ranges corresponding to an absorption peak of blood. The transmission signal of the other wavelength range is corrected with a fixed fraction &ggr; to correct for the egg being brown.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.