Method and device for infrared analysis, especially with regard to food
US5308981A · kind A · utility
29Cited by
12References
10Claims
0Family size
Inventor
Key dates
| Filing date | Apr 23, 1992 |
| Grant date | May 3, 1994 |
| Priority date | — |
| Expiry date | Apr 23, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S250/91
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In analysis of a sample of unground grain, infrared light is directed towards the sample and is detected after reflection on the sample. For analysis of wheat, light wavelengths within the interval 1050-1400 nm are used with a light detector of PbS-type. A suitable infrared analyzer has a rotatable filter device (5) with a plurality of filters (4) within the stated wavelength interval and is disposed to be able to carry out in a short time period a large number of measurements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.