Combustible gas detector having catalytic sensor stabilizing network
US4854155A · kind A · utility
16Cited by
8References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 19, 1988 |
| Grant date | Aug 8, 1989 |
| Priority date | — |
| Expiry date | Oct 19, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/0029
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A catalytic gas detector circuit in which the temperature of a resistance gas sensing element, contained in a bridge circuit, is temporarily increased by energizing a current changing network for a finite period of time sufficiently long enough to burn impurities off of the surface of the sensing element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.