Abstract

The application of dynamic light scattering to the determination of the dynamic viscosity of transparent liquids is shown by the use of low-power (10-mW) laser sources and a multiple-tau correlator. A novel data evaluation scheme is demonstrated by the application of a nonlinear fit to various intervals of lag times, which can detect relevant systematic errors. An appropriate experimental procedure permits results with good accuracy and precision for selected liquids.

© 1993 Optical Society of America

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