Gas-detecting element and gas-detecting device comprising same
US6787014B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 9, 2002 |
| Grant date | Sep 7, 2004 |
| Priority date | — |
| Expiry date | Oct 9, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/4074
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A gas-detecting element comprising an oxygen-ion-conductive solid electrolyte substrate, a sensing electrode fixed onto said solid electrolyte substrate and active with a detection object gas and oxygen, and a reference electrode fixed onto said solid electrolyte substrate and active with at least oxygen, for detecting potential difference between the sensing electrode and the reference electrode to determine the concentration of the detection object gas, the sensing electrode and/or the reference electrode being covered by an electrode-coating layer made of an oxygen-ion-conductive solid electrolyte, and the electrode-coating layer having a portion bonded to the solid electrolyte substrate directly or via an electrode underlayer made of an oxygen-ion-conductive solid electrolyte.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.