Soil moisture sensor systems and methods
US7474105B2 · kind B2 · utility
7Cited by
10References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 14, 2006 |
| Grant date | Jan 6, 2009 |
| Priority date | — |
| Expiry date | Dec 14, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/223
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Soil moisture sensor systems and methods are disclosed. An exemplary soil moisture sensor system includes a sensor configured to receive soil between parallel plates. A capacitive measurement circuit is operatively associated with the parallel sensor. A processor receives input from the capacitive measurement circuit. The processor determines moisture content of the soil between the parallel plates of the sensor based on the flowing relationship:where L is the length of the sensor, H is the height of the sensor, and d is the separation between the parallel plates of the sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.