| 摘要 |
<p>An airborne particulate sampling monitor for collecting particulate in either a solid, liquid or gaseous state. The monitor includes at least two intakes (18, 1) each of which accepts airborne particulate. Paired with and coupled to each intake is an appropriate particulate filter (20) for sampling accepted airborne particulate. A vacuum pump (28) establishes air flow into one of the intakes and a sampling process controller (24), coupled between each intake and filter pairing and to the vacuum pump, controls the vacuum pump's establishing of air flow into a selected particulate intake. Preferably, the vacuum pump and sampling process controller reside within a hub unit to which multiple satellite units (14) can be coupled such that each satellite unit employs the vacuum pump and sampling process controller of the hub unit. Due to central processing, conditional sampling at one or more of the units is possible. Further details and manual particulate sampling methods are presented.</p> |
