Aerosol discriminator for particle discrimination
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United States of America Patent
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Mar 8, 1994
Issued Date -
N/A
app pub date -
Aug 10, 1992
filing date -
May 1, 1991
priority date (Note) -
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Abstract
An optical particle counter generates a signal indicating an amount of radiation scattered by aerosols in a sample flow. Smoke can be discriminated from other aerosols in the sample flow by analyzing the AC component of the signal. Smoke has a much higher signal-to-noise ratio than that of larger particles such as dust and fog.
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