Monitoring Moisture Content in Surface Barriers Using a Passive Sensor Platform

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Work is being performed to develop a versatile micro-power sensor platform for the purpose of periodic, remote sensing of environmental variables such as subsurface moisture or radiation. The key characteristics of the platform architecture are that the components are passive, thereby requiring no internal power source and that it communicates with a "reader" via short range telemetry, i.e. no wires need penetrate barrier structure. Other significant attributes include the potential for a long service life and a compact size that makes it well suited for retrofitting existing barrier structures. Functionally, the sensor package is read by a short range induction ... continued below

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Kunerth, Dennis Clyde; Svoboda, John Mark & Lee, James Edwin September 1, 2001.

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Description

Work is being performed to develop a versatile micro-power sensor platform for the purpose of periodic, remote sensing of environmental variables such as subsurface moisture or radiation. The key characteristics of the platform architecture are that the components are passive, thereby requiring no internal power source and that it communicates with a "reader" via short range telemetry, i.e. no wires need penetrate barrier structure. Other significant attributes include the potential for a long service life and a compact size that makes it well suited for retrofitting existing barrier structures. Functionally, the sensor package is read by a short range induction coil that both activates/powers the sensor platform and detects the sensor output via a radio frequency signal generated by the onboard programmable interface controller microchip. To date, a prototype of the platform has been constructed and tested with a commercial moisture sensor. Work is now in progress to extend the capabilities of the existing platform to permit moisture sensing through landfill surface barriers (caps). Specifically, work is being performed to extend the telemetry range for transmission through a cap, select/develop low power sensor elements, and package the components to survive subsurface conditions. Considerations are being given to minimize package dimensions to permit retrofit applications.

Source

  • Subsurface Science Symposium,Idaho Falls, ID,09/06/2001,09/07/2001

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  • Report No.: INEEL/CON-01-00907
  • Grant Number: DE-AC07-99ID-13727
  • Office of Scientific & Technical Information Report Number: 910846
  • Archival Resource Key: ark:/67531/metadc890442

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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Creation Date

  • September 1, 2001

Added to The UNT Digital Library

  • Sept. 22, 2016, 2:13 a.m.

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  • Nov. 29, 2016, 8:30 p.m.

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Kunerth, Dennis Clyde; Svoboda, John Mark & Lee, James Edwin. Monitoring Moisture Content in Surface Barriers Using a Passive Sensor Platform, article, September 1, 2001; [Idaho Falls, Idaho]. (digital.library.unt.edu/ark:/67531/metadc890442/: accessed November 25, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.