Optical carbon dioxide sensors
US6338822B1 · kind B1 · utility
6Cited by
4References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 18, 2000 |
| Grant date | Jan 15, 2002 |
| Priority date | — |
| Expiry date | Feb 18, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/173845
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A sensor for the optical determination by fluorescence of carbon dioxide in liquid and gaseous media, which consist essentially of a carrier and a light-sensitive layer applied thereto. In addition to a polymer as a base substance and an anionic fluorescence dye, the light-sensitive layer also contains a quaternary onium phenolate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.