Fiber optic CO.sub.2 sensor
US4943364A · kind A · utility
31Cited by
1References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 23, 1986 |
| Grant date | Jul 24, 1990 |
| Priority date | — |
| Expiry date | Jun 23, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/7786
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A fiber-optic probe for measuring the partial pressure of CO.sub.2 in a medium includes a single optical fiber having a distal end; a mirror; a hydrolyzed dye/gel polymer, the dye being in contact with a bicarbonate solution; a solution permeable membrane covering the fiber distal end, hydrogel and mirror; and a gas-permeable membrane covering the solution permeable membrane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.