Optics: measuring and testing – For size of particles – By particle light scattering
Patent
1992-06-02
1994-03-29
Rosenberger, Richard A.
Optics: measuring and testing
For size of particles
By particle light scattering
356338, 356 37, 73 6172, 422 73, 422110, 436 36, 436164, G01N 1502, G01N 3002, G01N 128
Patent
active
052989674
ABSTRACT:
In a system for measuring minute concentrations of dissolved solids in liquids, seed particles of a known diameter are mixed with the liquid and the mixture of the seed particles and the liquid is atomized into droplets of a known size. The droplets are dried to residue particles comprising the seed particle surrounded by a shell of the dissolved solid. The size of the residue particles are measured by passing the residue particles through a laser beam to scatter light to photodetectors so as to generate a pulse from each particle. The amplitude of the pulses will indicate the size of the residue particle from which the thickness of the shell and the concentration of the dissolved solid can be determined.
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Pacific Scientific Company
Pham Hoa Q.
Rosenberger Richard A.
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