Automated soil measurement device
US8767194B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 28, 2013 |
| Grant date | Jul 1, 2014 |
| Priority date | — |
| Expiry date | May 28, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/3155
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A soil analysis device and a method are disclosed for measuring characteristics of a soil sample. A mixing chamber combines a soil sample and an extractant into a liquid mixture. A filtration system receives and filters the liquid mixture. The filtered liquid mixture is transmitted to a measurement cell. The measurement cell is coupled to a light source so that light propagating from the light source is attenuated and/or reflected by the liquid mixture and is measured by one or more optical detectors that are also coupled to the measurement cell. The optical detector generates an attenuation spectrum and/or a reflection spectrum indicating light received by the one or more detectors at different wavelengths. The attenuation and/or reflection spectrum is used to determine the characteristics of the soil sample.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.