Dual gas sensor having solid electrolyte contained in an oxide matrix
US4902401A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 25, 1989 |
| Grant date | Feb 20, 1990 |
| Priority date | — |
| Expiry date | Jan 25, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/4074
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A solid electrolyte dual gas sensor (10) is made, containing a container body of a first solid electrolyte (11), in contact with a monitor electrode (17) exposed to a monitored gas environment (13) containing selected gas components to be measured and in contact with a reference electrode (15) which is additionally isolated from the monitored gas environment by a second solid electrolyte section (16), and optionally section (14), where the solid electrolyte section (16) is disposed within a ceramic oxide matrix material (25) where the matrix contains interconnected pores filled with electrolyte, and where the second solid electrolyte, at the operating temperature of the gas sensor, is effective to dissociate to provide the sole source of self-generated reference gases at the reference electrode (15).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.