Optical pulse particle size analyzer

Details Optical pulse particle size analyzer Optical pulse particle size analyzer

1986-06-06

1989-07-25

Nelms, David C.

Optics: measuring and testing

For size of particles

By particle light scattering

356338, G01N 1502, G01N 2153

Patent

active

048507075

ABSTRACT:
A system for determining the cluster size distribution of submicron-size particles in a solution by optical pulse particle size analysis is provided. The system comprises a laminar flow cell having a translucent chamber, means for passing a sheath liquid and a sample liquid through the chamber, a light source and means for focusing the beam of light onto the chamber of the flow cell, a collecting lens, means for limiting collected light to a low angle, a stop, an iris, a light sensor and a means for processing the light signals. The system employs a combination of improved features which allows ultra-sensitive measurement of the cluster size distribution of particles, and can reliably detect as few as three dimers for every 10,000 monomers of micron size particles.

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