US 9,810,558 B2
Pressure-based airflow sensing in particle impactor systems
Thomas Bates, Westminster, CO (US); Cliff Ketcham, Golden, CO (US); Paul B. Hartigan, Longmont, CO (US); and Ronald W. Adkins, Erie, CO (US)
Assigned to PARTICLE MEASURING SYSTEMS, INC., Boulder, CO (US)
Filed by Particle Measuring Systems, Inc, Boulder, CO (US)
Filed on Mar. 12, 2015, as Appl. No. 14/656,170.
Claims priority of provisional application 61/953,252, filed on Mar. 14, 2014.
Prior Publication US 2015/0355000 A1, Dec. 10, 2015
Int. Cl. G01N 15/02 (2006.01); G01N 1/22 (2006.01); G01F 1/34 (2006.01); G01F 1/28 (2006.01); G01F 1/76 (2006.01); G01F 1/36 (2006.01); G01F 1/42 (2006.01); G01F 1/74 (2006.01)
CPC G01F 1/34 (2013.01) [G01F 1/28 (2013.01); G01F 1/36 (2013.01); G01F 1/42 (2013.01); G01F 1/74 (2013.01); G01F 1/76 (2013.01)] 39 Claims
OG exemplary drawing
 
28. The system of claim 27, wherein said first pressure sensor comprises a differential pressure sensor capable of directly measuring said differential pressure.