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Title: Tensiometer for shallow or deep measurements including vadose zone and aquifers

Abstract

A two cell tensiometer is described in which water level in the lower cell is maintained at a relatively constant height, and in equilibrium with the water pressure of materials that surround the tensiometer. An isolated volume of air in the lower cell changes pressure proportionately to the changing water pressure of the materials that surround the tensiometer. The air pressure is measured remotely. The tensiometer can be used in drying as well as wetting cycles above and below the water table. 8 figs.

Inventors:
Issue Date:
Research Org.:
Univ. of California (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
678558
Patent Number(s):
5941121
Application Number:
PAN: 8-843,000
Assignee:
Univ. of California, Oakland, CA (United States)
DOE Contract Number:  
AC03-76SF00098
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 24 Aug 1999
Country of Publication:
United States
Language:
English
Subject:
44 INSTRUMENTATION, INCLUDING NUCLEAR AND PARTICLE DETECTORS; 54 ENVIRONMENTAL SCIENCES; PRESSURE GAGES; DESIGN; GROUND WATER; PRESSURE MEASUREMENT; AQUIFERS; SOILS

Citation Formats

Faybishenko, B. Tensiometer for shallow or deep measurements including vadose zone and aquifers. United States: N. p., 1999. Web.
Faybishenko, B. Tensiometer for shallow or deep measurements including vadose zone and aquifers. United States.
Faybishenko, B. Tue . "Tensiometer for shallow or deep measurements including vadose zone and aquifers". United States.
@article{osti_678558,
title = {Tensiometer for shallow or deep measurements including vadose zone and aquifers},
author = {Faybishenko, B},
abstractNote = {A two cell tensiometer is described in which water level in the lower cell is maintained at a relatively constant height, and in equilibrium with the water pressure of materials that surround the tensiometer. An isolated volume of air in the lower cell changes pressure proportionately to the changing water pressure of the materials that surround the tensiometer. The air pressure is measured remotely. The tensiometer can be used in drying as well as wetting cycles above and below the water table. 8 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {8}
}