Particulate matter detection device
US8176768B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 29, 2009 |
| Grant date | May 15, 2012 |
| Priority date | — |
| Expiry date | Sep 18, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D41/1466
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A particulate matter detection device 100 includes a first electrode 1 whose one surface is covered with an inter-electrode dielectric material 4; a second electrode 2 disposed on the side of the one surface of the first electrode 1, to perform the discharge of electricity by a voltage applied between the first electrode 1 and the second electrode; and a pair of measurement electrodes 5, 15 disposed on the surface of the inter-electrode dielectric material 4 so as to face each other; characteristic measurement means 3 for measuring electric characteristics between the pair of measurement electrodes 5 and 15; and particulate matter amount calculation means 13 for obtaining the amount of the particulate matter 11 collected by the surface of the inter-electrode dielectric material 4, based on the change amount of the electric characteristics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.