Particulate material detecting apparatus
US7846241B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 18, 2009 |
| Grant date | Dec 7, 2010 |
| Priority date | — |
| Expiry date | Aug 18, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M15/102
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A particulate matter detecting apparatus (100) includes a detecting apparatus main body having a cavity (2) that is formed through the detecting apparatus main body, a particle charging section (3) that can charge particulate matter that has entered the cavity through an inflow-side end (6) of the cavity, a collection section (4) that can collect the particulate matter charged by the particle charging section (3) and measure the amount of the particulate matter, and an ion wind generation section (5) that allows the particulate matter charged by the particle charging section (3) to flow toward an outflow-side end (7) of the cavity, the particle charging section, the collection section (4), and the ion wind generation section (5) being provided inside the cavity in this order from the inflow-side end (6). The particulate matter detecting apparatus has a reduced size, shows only a small measurement error, and can be produced inexpensively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.