Title :
Precise measurement of dielectric constants of liquids using the principle of the cross capacitor
Author :
Rae Duk Lee ; Han Jun Kim ; Semenov, Y.P.
Author_Institution :
Korea Res. Inst. of Stand. & Sci., South Korea
Abstract :
A precise measurement system with very simple electrodes for non-contacting measurement of dielectric characteristics of liquids has been developed. This forms a cross capacitor based on the Thompson-Lampard theorem. Over a temperature range of 25-100/spl deg/C, the dielectric constants can be precisely measured with uncertainty less than /spl plusmn/0.02-0.05%.
Keywords :
Capacitors; Measurement uncertainty; Permittivity measurement; 25 to 100 C; Thompson-Lampard theorem; calibration; cross capacitor principle; equivalent circuit; liquid dielectric constants; low uncertainty; noncontact measurement; precise measurement system; quartz sensor tube; simple electrodes; Calibration; Capacitors; Dielectric constant; Dielectric liquids; Dielectric measurements; Electrodes; Measurement uncertainty; Pollution measurement; Temperature distribution; Time measurement;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 2000 Conference on
Conference_Location :
Sydney, NSW, Australia
Print_ISBN :
0-7803-5744-2
DOI :
10.1109/CPEM.2000.850910
