Method and capacitive sensor for counting aerosol nanoparticles
US9151724B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 8, 2009 |
| Grant date | Oct 6, 2015 |
| Priority date | — |
| Expiry date | Jan 25, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2015/0038
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention refers to a method and capacitive sensor for counting aerosol nanoparticles in an electric way. Aerosol particles, onto which a fluid was applied in an earlier process by known methods, change the capacitance of the dielectric of the capacitor when entering its field, which causes an electric signal. The method provides for detection of aerosol particles in a wide scope of their presence in the air and is not specific for any shape or chemical composition of nanoparticles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.