| 摘要 |
The present invention allows for increased volumetric flow rates relative to current commercially available technology in battery-powered PM sampling devices while vastly simplifying the operation of that device. This will allow for the capture of more PM in a shorter amount of time by allowing a shorter sampling duration and finer scale sampling or the collection of meaningful levels of PM in areas with unusually low concentrations of pollution. Further, the invention can be applied to any aerosol sampling device which requires a fixed rate of volumetric gas flow drawn through an aerosol sampling inlet.
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