Batch interference granulometric process particularly applicable to poly-dispersed biological particles
US4622642A · kind A · utility
Inventors
Key dates
| Filing date | Feb 3, 1983 |
| Grant date | Nov 11, 1986 |
| Priority date | — |
| Expiry date | Feb 3, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/47
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A process for batch interferential granulometry applicable particularly to poly-dispersed biological particles. The process is characterized in that the positioning of the angular measurement regions is selected according to the criteria of representativity of the signals obtained with respect to the given granulometry sought, particularly for their alternative components, and in that the processing of the signals comprises successively a harmonic Fourier analysis of their alternative components, and the use of the results of this analysis in a computation leading to the parameters sought, namely, the numbers, mean dimensions, and granulometric distribution of the analyzed particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.