Fiber optic fluid detector
Particular gases or liquids are detected with a fiber optic element having a cladding or coating of a material which absorbs the fluid or fluids and which exhibits a change of an optical property, such as index of refraction, light transmissiveness or fluoresence emission, for example, in response to absorption of the fluid. The fluid is sensed by directing light into the fiber optic element and detecting changes in the light, such as exit angle changes for example, that result from the changed optical property of the coating material. The fluid detector may be used for such purposes as sensing toxic or explosive gases in the atmosphere, measuring ground water contamination or monitoring fluid flows in industrial processes, among other uses. 10 figs.
- Research Organization:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- DOE Contract Number:
- W-7405-ENG-48
- Assignee:
- LLNL; ERA-14-001816; EDB-88-186735
- Patent Number(s):
- PATENTS-US-A6019841
- OSTI ID:
- 6746529
- Resource Relation:
- Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
47 OTHER INSTRUMENTATION
FIBER OPTICS
DESIGN
AEROSOL MONITORING
INVENTIONS
LIQUID CONTAMINATION MONITORS
OPTICAL PROPERTIES
AIR POLLUTION MONITORING
MEASURING INSTRUMENTS
MONITORING
MONITORS
PHYSICAL PROPERTIES
RADIATION MONITORS
520200* - Environment
Aquatic- Chemicals Monitoring & Transport- (-1989)
440300 - Miscellaneous Instruments- (-1989)
500200 - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)