Self-compensating tensiometer and method

Patent · Wed Jan 01 04:00:00 EST 2003

OSTI ID:875131

Hubbell, Joel M ^[1]; Sisson, James B ^[1]

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1. Idaho Falls, ID

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.

• Research Organization: BECHTEL BWXT IDAHO LLC
• DOE Contract Number: AC07-99ID13727
• Assignee: Bechtel BWXT Idaho, LLC (Idaho Falls, ID)
• Patent Number(s): US 6539780
• OSTI ID: 875131
• Country of Publication: United States
• Language: English

Related Subjects

/73/
ambient
ambient atmosphere
atmosphere
below
below grade
chamber
changes
comprising
contact
contained
defining
determine
earthen
fluid
grade
housing
independent
kept
level
liquid
material
method
moisture
porous
potential
pressure
self-compensating
sensor
situ
soil
soil moisture
submerged
tensiometer
transducer
volume
water