Optics: measuring and testing – By particle light scattering – With photocell detection
Reexamination Certificate
2007-05-18
2010-10-26
Toatley, Jr., Gregory J (Department: 2877)
Optics: measuring and testing
By particle light scattering
With photocell detection
C250S573000, C250S575000, C356S337000, C356S615000, C356S624000, C382S103000
Reexamination Certificate
active
07821636
ABSTRACT:
Aerosol and hydrosol particle detection systems without knowledge of a location and velocity of a particle passing through a volume of space, are less efficient than if knowledge of the particle location is known. An embodiment of a particle position detection system capable of determining an exact location of a particle in a fluid stream is discussed. The detection system may employ a patterned illuminating beam, such that once a particle passes through the patterned illuminating beam, a light scattering is produced. The light scattering defines a temporal profile that contains measurement information indicative of an exact particle location. However, knowledge of the exact particle location has several advantages. These advantages include correction of systematic particle measurement errors due to variability of the particle position within the sample volume, targeting of particles based on position, capture of particles based on position, reduced system energy consumption and reduced system complexity.
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Daneu Vincenzo
Haldeman George S.
Hoffeld Ronald H.
Jeys Thomas H.
Judson Nicholas M. F.
Alli Iyabo S
Hamilton Brook Smith & Reynolds P.C.
Massachusetts Institute of Technology
Toatley Jr. Gregory J
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