Cereal grain moisture content measuring apparatus
US4403191A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 12, 1981 |
| Grant date | Sep 6, 1983 |
| Priority date | — |
| Expiry date | Feb 12, 2001 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/223
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A cereal grain moisture content measuring apparatus including a vessel for containing a sample of cereal grains to be measured for its moisture content formed with a discharge valve at its bottom, an electrostatic capacity sensor mounted on an inner wall surface of the vessel, a weighing device connected to the vessel and a grain feeding device mounted above the vessel. Electric circuits of the weighing device and the grain feeding device are operatively connected to an electric circuit of the sensor through a control circuit. The weighing device is adapted either to measure the weight of a predetermined volume of cereal grains, or to measure the weight of a predetermined weight of cereal grains and produce a signal to actuate a volume measuring section provided to said vessel to determine the volume of the cereal grains of the predetermined weight. The moisture content sensed by the sensor is corrected by a control circuit in terms of a predetermined density of cereal grains based on the measured weight or volume of cereal grains in the vessel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.