Solid electrolyte oxygen sensor with zero oxygen reference
US4174258A · kind A · utility
11Cited by
7References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 3, 1978 |
| Grant date | Nov 13, 1979 |
| Priority date | — |
| Expiry date | May 3, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A solid electrolyte oxygen gas sensor element 1 comprises an electrolyte body 3 having electrodes 7 and 11 on the outer and inner surfaces 5 and 9 thereof, with the inner surface 9 having a protective means 13 thereon to protect the same from contact with oxygen or oxygen-containing gases so as to provide a substantially zero oxygen reference for the inner surface. The protective means 13 can comprise a coating, or a packing within a tubular electrolyte body, of carbon or a metal which forms an oxide that is stable at the operating temperature of the oxygen sensor element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.