Autonomous rapid facility chemical agent monitor via smith-purcell terahertz spectrometry
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United States of America Patent
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Apr 7, 2009
Grant Date -
Mar 13, 2008
app pub date -
Dec 19, 2005
filing date -
Dec 17, 2004
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method and system for sampling high vapor pressure substances is provided. In one embodiment, a sample is pre-concentrated by compression and condensation, water is removed by a condensing gas dryer, particulates are removed from the sample with an electrostatic precipitator; and the sample is shuttled through a sintered core at high vapor pressure so that molecules are condensed on the surface of the sintered core. In another embodiment, a system for sampling high vapor pressure substances includes a shuttle having a first piston and second piston for shuttling a sample through a sintered core at high vapor pressure and a condensing heat exchanger between the first piston and the second piston, the condensing heat exchanger including the sintered core.
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