Dielectric response of sandstones of Rajasthan in the frequency range 200 MHz-20 GHz

K. Dhoot¹ , Mukesh Vyas² , D.H. Gadani³ , Tanmay Pandit⁴

Section:Research Paper, Product Type: Isroset-Journal
Vol.7 , Issue.2 , pp.75-84, Apr-2019

CrossRef-DOI:   https://doi.org/10.26438/ijsrpas/v7i2.7584

Online published on Apr 30, 2019

Copyright © K. Dhoot, Mukesh Vyas, D.H. Gadani , Tanmay Pandit . This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
 

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Abstract :
Dielectric response (ε`, ε``) of nine different dry and water saturated sandstone samples of Rajasthan were measured in the frequency range 200MHz-20GHz. Result has been presented in the form of variation with frequency which showed characteristics features. The change observed in dielectric characteristic with water saturated sample is interpreted as existence of water molecules in free space of sandstones samples. The mechanisms that influence the dielectric values of sandstone are strongly dependent on the frequency of electromagnetic field. The ac conductivity, bulk density and porosity were also measured for dry and water saturated sandstone samples.

Key-Words / Index Term :
dielectric constant, ac conductivity, sandstone, frequency, water saturated

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