Radiometric analyzer with plural radiation sources and detectors
US4001589A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Apr 17, 1975 |
| Grant date | Jan 4, 1977 |
| Priority date | — |
| Expiry date | Apr 17, 1995 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/287
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A radiometric analyzer for measuring characteristics of a material by radiation comprises a plurality of systems in which each consists of a radiation source and a radiation detector which are the same in number as the number of elements of the molecule of the material and a linear calibration circuit having inverse response characteristics (calibration curve) of the respective systems of detectors, whereby the measurement is carried out by a four fundamental rules operation of the mutual outputs of said detector system obtained through said linear calibration circuit. One typical embodiment is a radiometric analyzer for hydrocarbons which measures the density of heavy oil, the sulfur content and the calorific value by three detector systems which include a .gamma.-ray source (E.sub..gamma. > 50 KeV), a soft X-ray source (Ex .apprxeq. 20 Kev), and a neutron ray source.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.