Title :
Experimental study of dielectric response in tetrahydrofuran and 2,5-dimethylfuran using time domain reflectometer
Author :
Johri, G.K. ; Sharma, R. ; Johri, M. ; Saxena, S.
Author_Institution :
Dept. of Phys., D.A-V. Coll., Kanpur, India
Abstract :
The time domain reflectometer (TDR) has been used for the experimental study of permittivity and dielectric loss for tetrahydrofuran and 2,5-dimethylfuran. The observed data in time domain has been transformed to frequency domain using Fourier transform method. We have also evaluated the relaxation time using distribution of relaxation time mechanism at different temperatures. The entropy, enthalpy and free energy of activation are determined for the purpose to understand the molecular collisions. This study is fruitful for the workers in the field of material science.
Keywords :
dielectric losses; dielectric relaxation; organic compounds; permittivity; time-domain reflectometry; 2,5-dimethylfuran; Fourier transform method; dielectric loss; dielectric response; enthalpy; entropy; free energy of activation; frequency domain; permittivity; relaxation time; relaxation time mechanism; tetrahydrofuran; time domain; time domain reflectometer; Coaxial components; Dielectric losses; Dielectric measurements; Educational institutions; Fourier transforms; Frequency; Least squares methods; Military standards; Reflection; Temperature distribution;
Conference_Titel :
Dielectric Liquids, 2002. ICDL 2002. Proceedings of 2002 IEEE 14th International Conference on
Print_ISBN :
0-7803-7350-2
DOI :
10.1109/ICDL.2002.1022768
