On the study of the dynamical behaviour of dielectrics by thermal-noise correlation analysis

✍ Scribed by V.A. Goncharov; I.V. Ovchinnikov

• Publisher: Elsevier Science
• Year: 1984
• Tongue: English
• Weight: 411 KB
• Volume: 111
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(84)80263-8

✦ Synopsis

Relations arc given for the complex pcrmittivity E(W) and dielectric response function v(f) of an arbitrary-type dispersion dielectric through the autocorrelation function (ACF) of the thermal-noise voltage &sting across the terminals of a measuring cell with the sample under study. EsperimentalIy observed ACFs and the resulting E(W) and &I for liquid crystalline 4'+z-hexykGcyanobiphenyl(6CB) are presented. A method for taking to account a tinitc risetime of the measuring amplier's transient characteristic, and an aIilgorithm for the numericf determination of dt) by solving a convolution-type integral equation arc developed.