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:
-
- Livermore, CA
- Issue Date:
- Research Org.:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- OSTI Identifier:
- 866979
- Patent Number(s):
- 4834497
- Assignee:
- United States of American as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- 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 = {Sun Jan 01 00:00:00 EST 1989},
month = {Sun Jan 01 00:00:00 EST 1989}
}