Affiliation:
1. Omsk State Pedagogical University
Abstract
The article presents the results of measurements of the complex dielectric constant of clays saturated with NaCl solution of various concentrations in a wide frequency range. The measurements were carried out at positive temperatures. It was revealed that several relaxation processes are observed in the spectra. A model is proposed that makes it possible to take into account the relaxation processes and their dependence on the concentration of the salt solution. The concentration practically does not affect the parameters of the processes, in contrast to the temperature.
Publisher
Omsk Scientific-Research Institute of Instrument Engineering - JSC ONIIP
Subject
General Earth and Planetary Sciences,General Environmental Science
Reference13 articles.
1. Topp G. C., Zeldin S., White I. Impact of real and imaginary components of relative permittivity on time domain reflectometry measurements in soils // Soil Sci. Soc. Am. J. 2000. Vol. 64, no. 4, pp. 1244–1232.
2. Ященко А. С., Кривальцевич С. В, Беляева Т. А. Анализ данных о диэлектрической проницаемости почв и их влияние на результат расчета ослабления земной волны // Техника радиосвязи. 2020. Выпуск 2 (45). С. 48–53.
3. Емец Ю. П. Дисперсия диэлектрической проницаемости трех- и четырехкомпонентных матричных сред // Журнал технической физики. 2003. Т. 73, № 3. С. 42–53.
4. Revil A. Effective conductivity and permittivity of unsaturated porous materials in the frequency range 1 mHz–1 GHz // Water Resources Research. 2013. Vol. 49, pp. 306–327.
5. Wagner N., Scheuermann А., Schwing M., Chen Z. Dielectric properties of a clay soil determined in the frequency range from 1 MHz to 40 GHz // 10th International Conference on Electromagnetic Wave Interaction with Water and Moist Substances, At Weimar, Germany. Vol. 10, pp. 242–250