Optics: measuring and testing – For size of particles
Reexamination Certificate
2008-09-12
2010-12-28
Chowdhury, Tarifur R. (Department: 2886)
Optics: measuring and testing
For size of particles
C356S237100, C356S243800, C356S128000
Reexamination Certificate
active
07859664
ABSTRACT:
The present invention provides a plurality of samples, each of which includes particles of a predetermined particle dimension, within narrow predetermined limits, dispersed in a carrier at a predetermined particle concentration. The predetermined particle dimension and the predetermined particle concentration are the same for each sample. However, advantageously, each sample has a different predetermined ratio of a value of an optical property of the particles to a value of the same optical property of the carrier. The present invention also provides a method for selecting a target sample from the plurality of samples to assess the measurement accuracy or the detection sensitivity of an optical particle analyzer as the predetermined ratio approaches 1.
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Oma Peter
Sharma Deepak Kumar
Akanbi Isiaka O
Brightwell Technologies Inc.
Chowdhury Tarifur R.
MacLean Doug
Teitelbaum Neil
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