Influence of the Temperature in a Water/Clay Mixture

Nowadays, a precise knowledge of permittivity became essential in several domains. Correlation between temperature and dielectric permittivity is necessary, especially in the target applications of radio frequencies and microwave systems like biomedical applications, aeronautics... Furthermore, moisture content in a material has a significant impact. In some countries temperature can vary a lot during a day and affect characterization measurement like Ground Penetration Radar (GPR) measurement. In this way correlation between Temperature and moisture content became important. In this paper, we propose a technical system to measure the influence of temperature on the dielectric permittivity of a water / kaolinite clay mixture. We use a measurement setup based on a coaxial line system upgraded with a heating component. In this study, we present some results and comparisons on Kaolinite with different moisture content.