Oxygen sensor
US4450065A · kind A · utility
55Cited by
1References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 26, 1982 |
| Grant date | May 22, 1984 |
| Priority date | — |
| Expiry date | Jul 26, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/4072
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The disclosed oxygen sensor has a plate-like oxygen pump element with electrodes, a plate-like oxygen concentration cell element with electrodes, and a means to couple the two elements in parallel to each other while forming a gap between those electrodes of the two elements which face with each other, so that the oxygen concentration cell element measures a ratio between oxygen concentration in said gap and oxygen concentration of a gas surrounding outside of the oxygen sensor, while said oxygen pump element causes diffusion of oxygen between said gap and the outside of the oxygen sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.