Gas detection devices
US5701009A · kind A · utility
15Cited by
6References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 18, 1995 |
| Grant date | Dec 23, 1997 |
| Priority date | — |
| Expiry date | Sep 18, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/66
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Gas detector includes structure (10) defining a gas flow passage (11), means (12) for passing an ultraviolet light beam (13) across the passage, and first and second electrodes (16, 17) downstream of the ultraviolet light means (12), at least one of the first and second electrodes (16, 17) being in the form of a series of electrically separate segments (16a, 17a) extending in a downstream direction, the electrodes (16, 17) being connectable to potential applying means (18) and to means (20) whereby the current passing through each segment (16a, 17a) of a segmented electrode (16, 17) can be measured.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.