Method and apparatus for the measurement of the size of particles entrained in a gas
US4829838A · kind A · utility
2Cited by
5References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 20, 1987 |
| Grant date | May 16, 1989 |
| Priority date | — |
| Expiry date | Jul 20, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2015/1493
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Apparatus for measuring the size of particles entrained in a gas comprises an optical fibre probe having a hemispherical end and insertable into a stream of gas bearing entrained particles to create a stagnation point in the flowing gas, a Doppler anemometer to measure particle velocity at a point upstream of the stagnation point and a computer-controlled burst counter to determine from the particle velocity measurements the distribution by number of aerodynamic diameter of the particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.