Gas sensor, gas sensor system using the same, and method of manufacturing a gas sensor
US6153072A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 9, 1998 |
| Grant date | Nov 28, 2000 |
| Priority date | — |
| Expiry date | Sep 9, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/417
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A gas sensor 1 including a first processing space 9; a first gas passage 11; a second processing space 10; a second gas passage 13; an oxygen concentration detection element 4; a first oxygen pumping element 3 adapted to reduce the oxygen concentration of exhaust gas introduced into the first processing space 9 within a range such that a water vapor contained in the measurement gas is not substantially decomposed; an oxygen catalyst section 16; and a combustible gas component concentration information generation/output section 5. Also disclosed is a gas sensor system including the above gas sensor and first oxygen pumping operation control means for adjusting the oxygen concentration of the measurement gas introduced into the first processing space within a range such that water vapor contained in the measuring gas is not substantially decomposed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.