Title :
Precise measurement of the dielectric constants of liquids using the principle of cross capacitance
Author :
Lee, Rae Duk ; Kim, Han Jun ; Semenov, Yu.P.
Author_Institution :
Korea Res. Inst. of Standards & Sci., Taejon, South Korea
fDate :
4/1/2001 12:00:00 AM
Abstract :
Using the principle of the cross capacitor, a precise system for measuring the dielectric constants of liquids has been developed. The four electrodes of the cross capacitor were formed around fused-silica tubes by plating a gold film. The effect of nonuniformities in the tube wall on the measured permittivity was investigated. It is shown that it should be possible to determine the dielectric constants of liquids with standard uncertainties of the order of 0.02% to 0.05% after allowing for the effects of the dielectric properties of the tube walls
Keywords :
capacitance measurement; dielectric liquids; permittivity measurement; cross capacitance principle; dielectric constants; dielectric liquids; four electrodes; fused-silica tubes; gold film plating; precise measurement; repeatability; sensor tube; standard uncertainties; tube wall nonuniformities effect; Area measurement; Capacitance measurement; Capacitors; Chemical technology; Dielectric constant; Dielectric liquids; Dielectric measurements; Electrodes; Permittivity measurement; Supercapacitors;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
