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Simultaneous measurements of the resistance and capacitance using a cylindrical sensor system
, Article Modern Physics Letters B ; Volume 22, Issue 8 , 2008 , Pages 595-610 ; 02179849 (ISSN) ; Azimi, P ; Sharif University of Technology
2008
Abstract
In this article, the design and operation of a cylindrical capacitive sensor based on the dielectric reactance capacitance and conductance changes of the gap medium is reported. The proposed system was used to determine characteristics of different water liquids as a result of the capacitance and resistance variations. The air gap capacitance (dry signal) is measured and then by filling the gap with a liquid, the capacitance (wet signal) is monitored for different liquids. A reported sensor is used for the distilled, tap, boiled, and salt water measurements and the capacitance and resistance results are compared. A big difference of about 38.5 μF in the measured capacitance values for the...