Electrochemical gas sensor with passage for receiving gas
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United States of America Patent
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Mar 29, 2005
Grant Date -
Apr 24, 2003
app pub date -
Oct 22, 2001
filing date -
Oct 22, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention relates to an electrochemical gas sensor having improved response time and sensitivity. The electrochemical gas sensor includes a substrate for providing a surface upon which a film of conductive material may be deposited, a pair of electrodes deposited on the substrate for permitting a measurement of current, and an electrolytic material for providing an electrical connection between the electrodes. The electrochemical gas sensor further includes a passage in the surface for holding or transporting gas received from a gas source, whereby sensing occurs at a three way interface where the gas, electrolytic material, and electrodes come in direct contact with one another.
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