Title :
Uncertainties in the determination of dielectric properties in the infinite sample method
Author :
Delecki, Z. Andrzej ; Stuchly, Stanislaw S.
Author_Institution :
Dept. of Electr. Eng., Ottawa Univ., Ont., Canada
fDate :
8/1/1989 12:00:00 AM
Abstract :
In the infinite-sample method, the sample permittivity is found from the measured input reflection coefficient. The reflection coefficient domain of a traveling-wave system is transformed into the complex permittivity domain by two subsequent mappings which include the inverse bilinear and Schwarz-Christoffel transformations. The error bounds in permittivity measurements are derived. The dielectric properties and respective uncertainties are presented for a water sample in the form of the Cole-Cole diagram. The case presented represents the first step leading to a more general presentation of uncertainties in dielectric measurements
Keywords :
dielectric measurement; measurement theory; microwave measurement; Cole-Cole diagram; Schwarz-Christoffel transformations; complex permittivity domain; dielectric measurements; error bounds; infinite sample method; input reflection coefficient; inverse bilinear transformation; permittivity measurements; sample permittivity; subsequent mappings; traveling-wave system; uncertainties; Admittance; Biological materials; Dielectric loss measurement; Dielectric materials; Dielectric measurements; Frequency; Materials testing; Permittivity measurement; Reflection; Uncertainty;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on