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Title: Fiber optic fluid detector

Abstract

Particular gases or liquids are detected with a fiber optic element (11, 11a to 11j) having a cladding or coating of a material (23, 23a to 23j) 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 (24, 24a to 24j) 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.

Inventors:
 [1]
  1. (Livermore, CA)
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
OSTI Identifier:
866979
Patent Number(s):
4834497
Assignee:
United States of American as represented by United States (Washington, DC) LLNL
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
fiber; optic; fluid; detector; particular; gases; liquids; detected; element; 11; 11a; 11j; cladding; coating; material; 23; 23a; 23j; absorbs; fluids; exhibits; change; optical; property; index; refraction; light; transmissiveness; fluoresence; emission; example; response; absorption; sensed; directing; detecting; changes; exit; angle; result; changed; 24; 24a; 24j; purposes; sensing; toxic; explosive; atmosphere; measuring; ground; water; contamination; monitoring; flows; industrial; processes; ground water; industrial processes; coating material; fiber optic; fluid flow; industrial process; fluid flows; detecting changes; light transmissive; optical property; water contamination; directing light; particular gases; optic element; exit angle; /385/

Citation Formats

Angel, S. Michael. Fiber optic fluid detector. United States: N. p., 1989. Web.
Angel, S. Michael. Fiber optic fluid detector. United States.
Angel, S. Michael. Sun . "Fiber optic fluid detector". United States. https://www.osti.gov/servlets/purl/866979.
@article{osti_866979,
title = {Fiber optic fluid detector},
author = {Angel, S. Michael},
abstractNote = {Particular gases or liquids are detected with a fiber optic element (11, 11a to 11j) having a cladding or coating of a material (23, 23a to 23j) 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 (24, 24a to 24j) 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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1989},
month = {1}
}

Patent:

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