NANOWIRE BASED GAS IONIZATION SENSOR
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United States of America Patent
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Issued Date -
Mar 1, 2012
app pub date -
Aug 24, 2011
filing date -
Aug 24, 2010
priority date (Note) -
Abandoned
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Abstract
A gas ionization sensor is disclosed. In one aspect, the sensor includes at least one sensing element on a substrate. The sensing element includes: at least one nanowire and a counter electrode which surrounds the nanowire, the surrounding electrode being electrically isolated from the nanowire and being at a predetermined gap from the nanowire, the gap allowing penetration of a gas or a gas mixture between the nanowire and the surrounding electrode. The sensing element also includes a voltage source electrically connected between the nanowire and the surrounding electrode for providing a voltage difference between the nanowire and the surrounding electrode, and measurement circuitry for measuring a breakdown voltage and/or an electrical discharge current and/or a prebreakdown current through the gap.
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