Measuring and testing – Liquid analysis or analysis of the suspension of solids in a... – Content or effect of a constituent of a liquid mixture
Reexamination Certificate
2005-06-28
2005-06-28
Williams, Hezron (Department: 2856)
Measuring and testing
Liquid analysis or analysis of the suspension of solids in a...
Content or effect of a constituent of a liquid mixture
C073S061790, C073S865500, C073S061410
Reexamination Certificate
active
06910367
ABSTRACT:
A method is described which applies Acoustic Spectrometry to characterize both the particle size distribution and micro-rheological properties of the structured concentrated dispersions. It suggests to model the structured dispersion as a collection of the spherical particles which are connected together with flexible strings. Oscillation of these strings creates an additional energy dissipation which contributes to the total attenuation. This dissipation is dependent on the second virial coefficient characterizing the flexibility of the strings. It is shown that the value of the second virial coefficient can be calculated from the measured attenuation spectra either for known particle size or together with particle size as adjustable parameter.
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Dukhin Andrei
Goetz Philip J.
Cygan Michael
Dispersion Technology, Inc.
Williams Hezron
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