Gas sensing and oxygen pumping device, and apparatus using the same
US6673223B2 · kind B2 · utility
8Cited by
9References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 26, 2001 |
| Grant date | Jan 6, 2004 |
| Priority date | — |
| Expiry date | Nov 26, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/4074
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention discloses a gas sensing device, an oxygen pumping cell, and a gas detection apparatus using the same for detecting lower ranges of gas concentration with high accuracy and stability. An under layer made of oxygen-ion-conductive solid electrolyte was formed between an electrolyte substrate and a sensing electrode, a conversion electrode or a gas treatment electrode. This allows the physical and chemical adhesion between these electrodes and the electrolyte substrate, thereby improving the sensing properties and stability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.