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Telecommunications and Radio Engineering
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Telecommunications and Radio Engineering

DOI: 10.1615/TelecomRadEng.v73.i18.60
pages 1671-1678

MEASUREMENT OF PARTICLE DIMENSIONS IN COLLOIDAL SOLUTIONS USING THE CORRELATION SPECTROSCOPY TECHNIQUE

A.N. Andreev
National Technical University "Kharkiv Polytechnic Institute" 2, Kyrpychova Str., 61002, Kharkiv, Ukraine
A. G. Lazarenko
National Technical University "Kharkiv Polytechnic Institute" 2, Kyrpychova Str., 61002, Kharkiv, Ukraine

RÉSUMÉ

The experimental setup which makes it possible to measure the time dependence of scattered light intensity from local concentration fluctuations of the Brownian particles in colloidal solutions is presented. The main attention is paid to the influence of frequency response parameters on the radii measurement accuracy of the scattering particles depending on their size at different signal/noise ratios. To reduce the measurement error in the range of 1 − 6 nm it is offered to use one-bit quantization method.