Chemical sensing techniques employing liquid-core optical fibers
US6011882A · kind A · utility
17Cited by
4References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 16, 1997 |
| Grant date | Jan 4, 2000 |
| Priority date | — |
| Expiry date | Oct 16, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/7703
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A permeable optical fiber waveguide with a liquid core is employed as a probe for the detection or measurement of a chemical specie of interest by filling the waveguide core region with a light transmitting reagent liquid which undergoes a change in an optical characteristic thereof when exposed to the chemical specie and then inserting the filled waveguide into an environment in which the chemical specie may be present. The chemical specie, if present, will permeate through the waveguide wall and react with or be absorbed in the core liquid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.