Particle size distribution analyzer

Details Particle size distribution analyzer Particle size distribution analyzer

2007-07-10

2007-07-10

Nguyen, Tu T. (Department: 2886)

Optics: measuring and testing

For size of particles

Reexamination Certificate

active

11510360

ABSTRACT:
An data processing system4includes: an integral part43which integrates, by two mutually different times, light intensities indicating light intensity signals outputted from light detectors24respectively provided for detecting intensities of scattered light and transmitted light generated by irradiating a sample powder S with light and then outputs each of the integrated values; an actuator control part44which generates and outputs a control signal for a vibration actuator32which drops the sample powder S stored in a sample housing so that one of the integrated values of light intensity outputted from the integral part43becomes closer to a set value previously defined; and a particle size distribution calculation part45which calculates the particle size distribution of the sample powder S based on another of the integrated values of light intensity outputted from the integral part43.

REFERENCES:
patent: 5532942 (1996-07-01), Kitamura et al.
patent: 6610343 (2003-08-01), Purtle et al.
patent: 6741350 (2004-05-01), Ikeda et al.
patent: 2003/0147074 (2003-08-01), Yamaguchi et al.
patent: 2001-0741639 (2001-03-01), None
patent: 2003-185558 (2003-03-01), None

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