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Self-compensating tensiometer and method

United States Patent

April 1, 2003
View the Complete Patent at the US Patent & Trademark Office
Idaho National Laboratory - Visit the Technology Transfer and Commercialization Office Website
A pressure self-compensating tensiometer and method to in situ determine below grade soil moisture potential of earthen soil independent of changes in the volume of water contained within the tensiometer chamber, comprising a body having first and second ends, a porous material defining the first body end, a liquid within the body, a transducer housing submerged in the liquid such that a transducer sensor within the housing is kept below the working fluid level in the tensiometer and in fluid contact with the liquid and the ambient atmosphere.
Hubbell; Joel M. (Idaho Falls, ID), Sisson; James B. (Idaho Falls, ID)
Bechtel BWXT Idaho, LLC (Idaho Falls, ID)
09/ 792,124
February 22, 2001
CONTRACTUAL ORIGIN OF THE INVENTION This invention was made with United States Government support under Contract No. DE-AC07-99ID13727 awarded by the United States Department of Energy. The United States Government has certain rights in the invention.