Gas sensing element
US7351318B2 · kind B2 · utility
0Cited by
8References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 12, 2002 |
| Grant date | Apr 1, 2008 |
| Priority date | — |
| Expiry date | Mar 5, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/4071
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A gas sensing element has at least a sensor cell consisting of a measured gas side electrode positioned in a measured gas chamber, a reference electrode being operative association with the measured gas side electrode, and a solid electrolytic substrate having surfaces on which the measured gas side electrode and the reference electrode are formed. The measured gas side electrode of the sensor cell contains at least one additive selected from the group consisting of Au, Ag, Cu, and Pb by an amount of 0.01 wt % to 2.0 wt % (external wt %) when an overall amount of the measured gas side electrode is 100 wt %.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.