| Title |
Frequency-dependent electrical parameters of soils as a function of the moisture content |
| DOI |
http://dx.doi.org/10.5207/JIEIE.2014.28.6.068 |
| Keywords |
Soil Parameter ; Grounding System ; Permittivity ; Soil Resistivity ; Frequency-dependent Impedance |
| Abstract |
The electrical parameters of soils are highly dependent on the various factors such as types of soil, chemical compositions, moisture content, temperature, frequency, and so on. The analysis of soil parameters is of fundamental importance in design of grounding systems. In this paper, we present the experimental results of frequency-dependent impedance, resistivity, permittivity of soils as functions of types of soil and moisture content. The impedance and resistivity of soils are decreased as the moisture content and the frequency increase. In particular, the variation of the soil resistivity with the frequency is pronounced in the conditions of high resistivity and low moisture content. On the contrary, the permittivity of soils are sharply decreased with increasing the frequency below 10kHz and the frequency-dependent permittivity of soils are highly changed in the conditions of high moisture and low resistivity. |