Particle sampling and measurement in the ambient air
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United States of America Patent
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Jan 10, 2017
Grant Date -
Mar 27, 2014
app pub date -
Sep 19, 2013
filing date -
Sep 21, 2012
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Abstract
An apparatus and method for sampling and measuring air born particulate matter includes an inlet for the particulate containing gas to enter. A mechanism then removes coarse particles larger than a selected size while permitting filtered particles of less than the selected size to pass through. A chamber containing a quartz crystal sensor permits the filtered particles that have passed through to deposit to create an output signal in response to the deposited particle mass.
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