Moisture sensor based on evanescent wave light scattering by porous sol-gel silica coating
Abstract
An optical fiber moisture sensor that can be used to sense moisture present in gas phase in a wide range of concentrations is provided, as well techniques for making the same. The present invention includes a method that utilizes the light scattering phenomenon which occurs in a porous sol-gel silica by coating an optical fiber core with such silica. Thus, a porous sol-gel silica polymer coated on an optical fiber core forms the transducer of an optical fiber moisture sensor according to an embodiment. The resulting optical fiber sensor of the present invention can be used in various applications, including to sense moisture content in indoor/outdoor air, soil, concrete, and low/high temperature gas streams.
- Inventors:
- Issue Date:
- Research Org.:
- Mississippi State Univ., Mississippi State, MS (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1175727
- Patent Number(s):
- 7037554
- Application Number:
- 10/608,228
- Assignee:
- Mississippi State University (Mississippi State, MS)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
G - PHYSICS G02 - OPTICS G02B - OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
- DOE Contract Number:
- FC26-98FT40395
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 47 OTHER INSTRUMENTATION
Citation Formats
Tao, Shiquan, Singh, Jagdish P., and Winstead, Christopher B. Moisture sensor based on evanescent wave light scattering by porous sol-gel silica coating. United States: N. p., 2006.
Web.
Tao, Shiquan, Singh, Jagdish P., & Winstead, Christopher B. Moisture sensor based on evanescent wave light scattering by porous sol-gel silica coating. United States.
Tao, Shiquan, Singh, Jagdish P., and Winstead, Christopher B. Tue .
"Moisture sensor based on evanescent wave light scattering by porous sol-gel silica coating". United States. https://www.osti.gov/servlets/purl/1175727.
@article{osti_1175727,
title = {Moisture sensor based on evanescent wave light scattering by porous sol-gel silica coating},
author = {Tao, Shiquan and Singh, Jagdish P. and Winstead, Christopher B.},
abstractNote = {An optical fiber moisture sensor that can be used to sense moisture present in gas phase in a wide range of concentrations is provided, as well techniques for making the same. The present invention includes a method that utilizes the light scattering phenomenon which occurs in a porous sol-gel silica by coating an optical fiber core with such silica. Thus, a porous sol-gel silica polymer coated on an optical fiber core forms the transducer of an optical fiber moisture sensor according to an embodiment. The resulting optical fiber sensor of the present invention can be used in various applications, including to sense moisture content in indoor/outdoor air, soil, concrete, and low/high temperature gas streams.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2006},
month = {5}
}
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