Instrument for grinding and analyzing material in ground state
US4400086A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 4, 1979 |
| Grant date | Aug 23, 1983 |
| Priority date | — |
| Expiry date | Jun 4, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/3554
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In an instrument for optically measuring the constituents of grain samples, a grinder is provided to grind a sample of grain and direct the ground grain into a chute. A hopper is provided for loading the grain into the grinder with a gate for controlling the flow of the grain into the grinder. A filter wheel and infrared light source assembly directs a beam of infrared light on the grain sample in the chute while continuously changing the wavelength irradiating the grain. As the infrared light is irradiating grain, the grain is moved in a bed through the infrared light and reflectivity measurements are made. From these reflectivity measurements, the oil, water and protein content of the grain sample is determined.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.