Particulate detector
US8559006B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 1, 2009 |
| Grant date | Oct 15, 2013 |
| Priority date | — |
| Expiry date | Oct 9, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B17/113
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A particulate detector (10) comprises a radiation source (12) arranged to emit radiation in at least first and second predetermined wavebands towards a sampling region (18) suspected of containing particulates, and a detection element (14), shielded from the radiation source (12), and arranged to detect radiation from the sampling region (18) at least first and second instances. The radiation source (12) is such that the emissions in the wavebands temporarily overlap. The detector is such that, at the instances at which the radiation is detected, the relative contributions from the emissions in each predetermined waveband are distinguishable, thereby allowing characteristics of the particulates to be determined. The radiation source (12) may comprise a light emitting diode (24).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.