Distributed fiber optic moisture intrusion sensing system
Abstract
Method and system for monitoring and identifying moisture intrusion in soil such as is contained in landfills housing radioactive and/or hazardous waste. The invention utilizes the principle that moist or wet soil has a higher thermal conductance than dry soil. The invention employs optical time delay reflectometry in connection with a distributed temperature sensing system together with heating means in order to identify discrete areas within a volume of soil wherein temperature is lower. According to the invention an optical element and, optionally, a heating element may be included in a cable or other similar structure and arranged in a serpentine fashion within a volume of soil to achieve efficient temperature detection across a large area or three dimensional volume of soil. Remediation, moisture countermeasures, or other responsive action may then be coordinated based on the assumption that cooler regions within a soil volume may signal moisture intrusion where those regions are located.
- Inventors:
-
- Albuquerque, NM
- Issue Date:
- Research Org.:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 958132
- Patent Number(s):
- 6581445
- Application Number:
- 09/608,334
- Assignee:
- Sandia Corporation (Albuquerque, NM)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- DOE Contract Number:
- AC04-96AL85000
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Weiss, Jonathan D. Distributed fiber optic moisture intrusion sensing system. United States: N. p., 2003.
Web.
Weiss, Jonathan D. Distributed fiber optic moisture intrusion sensing system. United States.
Weiss, Jonathan D. Tue .
"Distributed fiber optic moisture intrusion sensing system". United States. https://www.osti.gov/servlets/purl/958132.
@article{osti_958132,
title = {Distributed fiber optic moisture intrusion sensing system},
author = {Weiss, Jonathan D},
abstractNote = {Method and system for monitoring and identifying moisture intrusion in soil such as is contained in landfills housing radioactive and/or hazardous waste. The invention utilizes the principle that moist or wet soil has a higher thermal conductance than dry soil. The invention employs optical time delay reflectometry in connection with a distributed temperature sensing system together with heating means in order to identify discrete areas within a volume of soil wherein temperature is lower. According to the invention an optical element and, optionally, a heating element may be included in a cable or other similar structure and arranged in a serpentine fashion within a volume of soil to achieve efficient temperature detection across a large area or three dimensional volume of soil. Remediation, moisture countermeasures, or other responsive action may then be coordinated based on the assumption that cooler regions within a soil volume may signal moisture intrusion where those regions are located.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jun 24 00:00:00 EDT 2003},
month = {Tue Jun 24 00:00:00 EDT 2003}
}
Works referenced in this record:
Review of dynamic line rating systems for wind power integration
journal, January 2016
- Fernandez, E.; Albizu, I.; Bedialauneta, M. T.
- Renewable and Sustainable Energy Reviews, Vol. 53