Method and apparatus for increased purge efficacy in optical absorption spectroscopic measurements of gases in sealed containers
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United States of America Patent
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Nov 3, 2015
Grant Date -
Nov 7, 2013
app pub date -
Mar 15, 2013
filing date -
May 3, 2012
priority date (Note) -
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Abstract
A system and method for nondestructive detection of gas in a sealed container. The system includes a light source housed in a light source housing and configured to emit a light beam for absorption in a substance to be measured, a detector housed in a detector housing and configured to detect the emitted light beam, a zone that accepts one or more of the sealed containers, each container being substantially optically transparent and containing the substance to be measured, the zone located between the detector and the light source, the light source configured to transmit the light beam through the zone, and a light source purging system comprising a light source channel surrounding the light source and positioned between the light source and the housing, the light source channel configured to expel purge gas from a purge gas source into the zone.
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