Gas component sensor for gas oxides
US7001495B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Jul 26, 2001 |
| Grant date | Feb 21, 2006 |
| Priority date | — |
| Expiry date | Aug 16, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/4073
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention is a gas component sensor comprising novel electrolyte compositions. The electrolyte compositions in bulk, sintered or thin film embodiments are capable of forming with different-metal sensing and reference electrodes a highly stable gas oxide sensors. The novel electrolyte composition changes electrochemical reactions at the sensing and reference electrodes and the overall reaction of the electrodes and electrolyte. The novel electrolyte compositions have: (1) excellent chemical stability and thermal compatibility as to the electrodes and a preferred ceramic substrate, (2) excellent chemical stability with the environment as to the reference and sensing electrodes, which need not be sealed against the atmosphere to be sensed, (3) effective adherence to the substrate and electrode metals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.