Moisture sensing apparatus with movable probe in combination with an agricultural baler having a pickup
US4929904A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 24, 1989 |
| Grant date | May 29, 1990 |
| Priority date | — |
| Expiry date | Jul 24, 2009 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01F15/08
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Apparatus for sensing moisture in crop material includes a probe mounted on a pickup of an agricultural baler for movement between a retracted position and an operative position. The probe has a pair of fingers arranged in a spaced apart relationship so that crop material picked up by the baler bridges the space between the fingers when the probe is in the operative position thus creating a signal path between the fingers. The moisture sensing apparatus also includes a cam roller carried on the pickup to move the probe from its retracted position to its operative position, and a computer connected to the probe to measure the conductance level of the crop material creating the signal path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.