Soil test apparatus
US5038040A · kind A · utility
43Cited by
6References
36Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 22, 1989 |
| Grant date | Aug 6, 1991 |
| Priority date | — |
| Expiry date | Sep 22, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/084
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A soil test apparatus for field use comprises structure adapting the apparatus for transport over a field for testing the soil thereof; an infrared radiation generator for producing infrared radiation at a plurality of predetermined wavelengths, an elongate light carrying member coupled to the infrared radiation generator and extending therefrom for directing infrared radiation onto the soil; and a light detector for detecting infrared radiation reflected from the soil and for producing corresponding electrical signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.