Measurement of particle size distribution
US6778271B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 20, 1999 |
| Grant date | Aug 17, 2004 |
| Priority date | — |
| Expiry date | Aug 20, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N15/0211
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A particle size distribution analysis apparatus comprising a sample measurement zone adapted to define a sample of particles, a light emitting means adapted to provide a source of light incident upon the sample measurement zone, and at least a first detection means adapted to measure light levels in the apparatus at particular scattering angles and output a signal to a computation means enabling the particle size distribution of particles contained within the sample to be determined, wherein the computation means is adapted, in use, to calculate a particle size distribution taking into account reflections by the measurement zone of light scattered off the particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.