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Title: Fiber optic fluid detector

Abstract

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.

Inventors:
Publication Date:
Research Org.:
Lawrence Livermore National Lab., CA (USA)
OSTI Identifier:
6746529
Alternate Identifier(s):
OSTI ID: 6746529
Patent Number(s):
PATENTS-US-A6019841
Assignee:
LLNL; ERA-14-001816; EDB-88-186735
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Resource Relation:
Other Information: Portions of this document are illegible in microfiche products
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; 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)

Citation Formats

Angel, S.M. Fiber optic fluid detector. United States: N. p., 1987. Web.
Angel, S.M. Fiber optic fluid detector. United States.
Angel, S.M. Fri . "Fiber optic fluid detector". United States.
@article{osti_6746529,
title = {Fiber optic fluid detector},
author = {Angel, S.M.},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri Feb 27 00:00:00 EST 1987},
month = {Fri Feb 27 00:00:00 EST 1987}
}