Nuclear gauge with compensation for sample irregularities
US5532492A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 12, 1994 |
| Grant date | Jul 2, 1996 |
| Priority date | — |
| Expiry date | Oct 12, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N23/10
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A neutron gauge is described for determining the moisture content of a moisture containing material. Samples of the moisture containing material are confined in a sample pan and a sample cover with sufficient neutron moderating activity is pressed against the sample. The cover, sample, and sample pan are placed in the same location in the gauge with respect to the neutron source and detector for each measurement to compensate for volume variations in the sample. The sample can be weighed to compensate for density variations. The sample pan cover can include a cadmium sheet for direct contact with the sample to shield the sample from neutrons thermalized by the cover.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.