Patent ID: 7688427
Filing Date: 2010-03-30
Classification: G01N

Abstract:
1. A particle analysis system comprising: a channel; a hydrodynamic focusing module connected to the channel; a projection system proximate to the channel; a screen having a slit aperture proximate to the channel; and a dual sensor detector proximate to the slit aperture; and wherein the slit aperture comprises a first slit and a second slit; and signals from the first slit and the second slit provide information about speeds of the particles; wherein a width of the signal provides information about a diameter of the particle; an amplitude of the signal provides information for discriminating different kinds of particles; and/or the amplitude of the signal provides counts of the particles; the width of the signal provides information for discriminating different kinds of particles; the width of the signal provides counts of the particles; a combination of width and amplitude of the signal provides information for discriminating different kinds of particles; and the combination of width and amplitude of the signal provides counts of particles.