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Title: 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):
7,037,554
Application Number:
10/608,228
Assignee:
Mississippi State University (Mississippi State, MS)
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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