Single detector differential particulate mass monitor with intrinsic correction for volatilization losses
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United States of America Patent
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Jan 7, 2003
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N/A
app pub date -
May 8, 2000
filing date -
May 10, 1999
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Abstract
The mass of particulate matter in a particle laden gas stream is measured using a single mass detector. The particle laden gas stream and a substantially identical but particle-free gas stream alternately engage the mass detector during successive measurement time periods. A difference between a reading provided by the mass detector for a current measurement time period and a reading provided by the mass detector for a consecutive measurement time period is determined. This difference intrinsically corrects for volatilization losses occurring during the current measurement time period. A measure of the mass or concentration of particulate matter in the particulate laden gas stream is determined from this difference.
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