Apparatus and method for determining the particle size...

Details Apparatus and method for determining the particle size... Apparatus and method for determining the particle size...

2011-03-15

2011-03-15

Toatley, Gregory J (Department: 2877)

Optics: measuring and testing

For size of particles

By particle light scattering

C356S335000

Reexamination Certificate

active

07907279

ABSTRACT:
An apparatus for determining the particle size and/or particle shape of a mixture of particles is provided, comprising a feeding device, which passes the mixture of particles through a zone of measurement as a particle flow; an illumination module, which generates illumination beams and illuminates the zone of measurement with them; a detection module comprising two cameras, each recording an area of the zone of measurement assigned to the respective camera, said cameras recording the areas with different magnifications, and comprising an evaluating module, which determines the particle size and/or particle shape on the basis of the recordings of the cameras, characterized in that the illumination module is provided such that it illuminates the two areas with different intensities.

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