Elliptical photo-acoustic sensor
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United States of America Patent
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Feb 21, 2012
Grant Date -
May 29, 2008
app pub date -
Nov 26, 2007
filing date -
Nov 27, 2006
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Expired
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Abstract
An elliptical photo-acoustic spectrometer chamber design will result in a larger intensity signal at the pick-up microphone and allow high frequency light modulation. This makes the spectrometer have a lower limit of detection threshold, and will increase the signal to noise ratio in general for the instrument, resulting in a more sensitive instrument allowing more precise measurements.
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