Sensors
US5552025A · kind A · utility
2Cited by
6References
28Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 20, 1994 |
| Grant date | Sep 3, 1996 |
| Priority date | — |
| Expiry date | Apr 20, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/4074
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A sensor for measuring sulphur dioxide in flue gases comprises a sensing electrolyte of doped .beta.-alumina or doped NASICON. The dopant serves to increase conductivity at grain boundaries in the sensing element or at the electrode interface, thereby to increase the rate of depolarisation. Preferred dopants are copper silver and nickel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.