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Exfiltrometer apparatus and method for measuring unsaturated hydrologic properties in soil

United States Patent

6,986,281
January 17, 2006
View the Complete Patent at the US Patent & Trademark Office
Idaho National Laboratory - Visit the Technology Transfer and Commercialization Office Website
Exfiltrometer apparatus includes a container for holding soil. A sample container for holding sample soil is positionable with respect to the container so that the sample soil contained in the sample container is in communication with soil contained in the container. A first tensiometer operatively associated with the sample container senses a surface water potential at about a surface of the sample soil contained in the sample container. A second tensiometer operatively associated with the sample container senses a first subsurface water potential below the surface of the sample soil. A water content sensor operatively associated with the sample container senses a water content in the sample soil. A water supply supplies water to the sample soil. A data logger operatively connected to the first and second tensiometers, and to the water content sensor receives and processes data provided by the first and second tensiometers and by the water content sensor.
Hubbell; Joel M. (Idaho Falls, ID), Sisson; James B. (Idaho Falls, ID), Schafer; Annette L. (Idaho Falls, ID)
Battelle Energy Alliance, LLC (Idaho Falls, ID)
10/ 883,254
20060000267
June 30, 2004
GOVERNMENT RIGHTS The United States Government has certain rights in this invention pursuant to Contract No. Contract No. DE-AC07-99ID13727, and Contract No. DE-AC07-05ID14517 between the U.S. Department of Energy and Battelle Energy Alliance, LLC.