Title :
The effect of clay and organic matter content on the dielectric permittivity of soils and grounds at the frequency range from 10 MHz to 1 GHz
Author :
Bobrov, P.P. ; Mironov, V.L. ; Kondratyeva, O.V. ; Repin, A.V.
Author_Institution :
Omsk State Pedagogical Univ., Omsk, Russia
Abstract :
In this paper, the results of measurements in the frequency range from 10 MHz to 1.0 GHz of the complex dielectric permittivity for some moist artificial soil, that is, mixtures consisting of quartz sand and bentonite clay components, with varying particle-size distributions, are discussed. The measurements were conducted with the use of coaxial line and capacitor probes in conjunction with a vector network analyzer. The complex permittivity was found to increase with the frequency decreasing and moisture increasing. In this case, the greatest variations in dielectric constant with frequency, in the limit of factor 3, were observed for the samples containing a largest percentage of clay.
Keywords :
clay; geophysical techniques; microwave measurement; organic compounds; permittivity; remote sensing; sand; soil; bentonite clay component; capacitor probes; clay content; coaxial line; complex dielectric permittivity; dielectric constant; frequency 10 MHz to 1.0 GHz; grounds; moist artificial soil; organic matter content; particle size distributions; quartz sand; soils; vector network analyzer; Atmospheric measurements; Dielectric measurements; Dielectrics; Moisture; Particle measurements; Soil; Soil measurements; Dielectric permittivity; bentonite clay; interlayer polarization; quartz sand and water mixtures;
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2010 IEEE International
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4244-9565-8
Electronic_ISBN :
2153-6996
DOI :
10.1109/IGARSS.2010.5652152
