Sensor
US4658632A · kind A · utility
9Cited by
3References
8Claims
0Family size
Assignees
Inventor
Key dates
| Filing date | Dec 10, 1985 |
| Grant date | Apr 21, 1987 |
| Priority date | — |
| Expiry date | Dec 10, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/12
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A .lambda. sensor comprising a perovskite compound ASnO.sub.3-.delta. and silica, germania, zirconia or hafnia added to the compound in an amount of 0.5 to 30 mol % per mol of the compound. Silica or like additive gives improved oxygen sensitivity and reduces the temperature dependence of the oxygen sensitivity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.