Title :
Permittivity Measurements in a Resonator Terminated by an Infinite Sample
Author :
Stuchly, Stanislaw S. ; Stuchly, Maria A. ; Carraro, Benito
Abstract :
A method of measuring the permittivity of dielectric materials using a resonator terminated by an infinite sample is described. The method is based on measurements of the changes of the resonant frequency and the Q factor produced by the test sample. The method is particularly suitable for lossy materials with a high dielectric constant, namely, biological substances and tissues. Analytical and graphical solutions, which lead to material permittivity from experimental data, and a discussion of the measurement uncertainty are presented. The experimental results obtained for water are given.
Keywords :
Biological materials; Dielectric losses; Dielectric materials; Dielectric measurements; Frequency measurement; Permittivity measurement; Q factor; Q measurement; Resonant frequency; Testing;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
DOI :
10.1109/TIM.1978.4314733