Particulate sensor system
US6634210B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 17, 2002 |
| Grant date | Oct 21, 2003 |
| Priority date | — |
| Expiry date | Apr 17, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N15/0656
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
One embodiment of a particulate sensor system; comprises a first sensing electrode and a second sensing electrode in thermal and electrical communication with a heater wherein the first sensing electrode and the second sensing electrode are disposed on the same side of an electrode substrate. One embodiment of a method for operating a particulate sensor system comprises introducing a gas stream to a sensor; monitoring the resistance between the first sensing electrode and the second sensing electrode, and increasing the temperature of the sensor when the resistance is greater than or equal to a first selected level. One embodiment of a method for operating a filter system comprises exposing a sensor to a pre-selected number of self-regeneration cycles, and increasing the temperature of the filter system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.