Method of measuring oxygen and process for pretreating a solid electrolyte oxygen gas sensing element
US4294668A · kind A · utility
10Cited by
7References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 12, 1980 |
| Grant date | Oct 13, 1981 |
| Priority date | — |
| Expiry date | Jun 12, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/407
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An activated solid electrolyte oxygen gas sensing element with increased voltage output, shortened switching time and reduced internal resistance, the sensing element having inner and outer conductive catalyst electrodes thereon, is produced by subjecting the outer surface with the outer electrode to a nonoxidizing atmosphere and applying a direct current to the element while the same is at an elevated temperature, the current being applied with the outer electrode as an anode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.