METHOD AND SYSTEM FOR PARTICLE DETECTION
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United States of America Patent
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Issued Date -
Feb 18, 2010
app pub date -
Mar 7, 2008
filing date -
Mar 9, 2007
priority date (Note) -
Abandoned
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Abstract
An apparatus for detecting particles in an airflow is disclosed. The apparatus can include at least one light source for illuminating a one or more portions of the airflow, at least one photo-detector positioned to detect light scattered from one or more illuminated volumes of the airflow. The at least one light source and at least one photo detector are arranged such that a signal indicative of light scattered from a plurality of illuminated volumes can be derived from the output of the at least one photo detector. The apparatus also includes a signal processing apparatus configured to process said signals indicative of light scattered from a plurality of illuminated volumes to determine whether particles have been detected in the airflow.
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