Electrode for zirconia oxygen sensors
US5635044A · kind A · utility
1Cited by
11References
8Claims
0Family size
Inventors
Key dates
| Filing date | Aug 11, 1995 |
| Grant date | Jun 3, 1997 |
| Priority date | — |
| Expiry date | Aug 11, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/4075
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An oxygen sensor is provided with a virtual point contact electrode to improve performance, extend operational life and to minimize thermal shock breakage; it is also provided with reduced annular space between the protective sheath and zirconia electrolyte, and minimized communicating openings to the furnace atmosphere, in order to reduce burnoff air flow during probe conditioning.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.