Particle detector with particle trapping device
US7605389B1 · kind B1 · utility
3Cited by
7References
33Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 11, 2007 |
| Grant date | Oct 20, 2009 |
| Priority date | — |
| Expiry date | Apr 18, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N15/0205
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A particle detector includes an input port for receiving gas and particulate matter. A charging source generating positively and negatively charged species that charges at least some particulate matter in charging region, thereby generating a plurality of charged particles. A trapping region is formed having a potential energy minimum that attracts and confines the plurality of charged particles. A detector detects charged particles in the trapping region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.