Permeable membrane soil probe
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United States of America Patent
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-
Jun 17, 1997
Grant Date -
N/A
app pub date -
Nov 22, 1995
filing date -
Nov 22, 1995
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A permeable membrane sensor probe has a housing with a gas permeable membrane. The membrane has an outer surface and an inner surface. The membrane outer surface is disposed adjacent an outer soil engaging surface of the housing. The membrane is adapted to allow the gas phase of at least one particular chemical compound found in the soil to permeate through the membrane from the membrane outer surface to the membrane inner surface while substantially preventing the transfer of liquids and solids found in the soil through the membrane. A gas detecting arrangement is disposed adjacent the membrane inner surface and inside of the housing. This detection system detects the presence of a particular compound at different soil levels.
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