Arrangement for measurement of dynamic properties of micropartic

Details Arrangement for measurement of dynamic properties of micropartic Arrangement for measurement of dynamic properties of micropartic

1981-05-18

1984-03-06

Arnold, Bruce Y.

Optics: measuring and testing

By inspection with agitation or rotation

356337, G01N 2185, G01N 2153

Patent

active

044350805

ABSTRACT:
The disclosure teaches a device for measuring the dynamic properties of microparticles including at least two flat measuring bodies or discs spaced from each other, with the distance therebetween being adjustable and the space therebetween being filled with a suspension of microparticles to be measured. At least one of said bodies or discs is movable so that a defined magnitude of fluid shear stress is generated in the suspension. The device also includes means for passing a light beam through both bodies and said suspension so that, during rotation and when rotation is stopped, different diffraction patterns are generated. Means for measuring the diffraction patterns is also included thereby obtaining useful data concerning the dynamic properties of the microparticles.

REFERENCES:
patent: 3733136 (1973-05-01), Porath-Furedi
patent: 3955890 (1976-05-01), Bessis et al.

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