%K Accurate measurement; ADC; Capacitance variation; Dielectric permittivities; Differential capacitive sensors; Interface circuits; Oil-water mixture; Voltage change, Capacitance; Capacitive sensors; Crude oil; Logic circuits; Permittivity; Sensors; Sustainable development; Water content, Integrated circuit manufacture
%X This paper presents a novel interface circuit design for an accurate measurement of water contents in crude oil by using differential capacitive sensors; the latter are immersed in two different liquids. One of them is a pure crude oil considered as a reference medium and the other medium is a mixture of water and crude oil which considered as a liquid under test. The dielectric permittivity of oil-water mixture is being used for water contents measurement. Sensor is placed in different concentrations of oil and water which directly affects the capacitance of the sensor. This above capacitance variation is converted to a voltage change which in turns measured by an interface circuit. The simulation has been carried out to confirm the performance of the circuit. The results show that the proposed interface circuit has the ability to measure the water contents with accuracy and stability. © 2012 IEEE.
%O cited By 7; Conference of 2012 IEEE International Conference on Circuits and Systems: ""Advanced Circuits and Systems for Sustainability"", ICCAS 2012 ; Conference Date: 3 October 2012 Through 4 October 2012; Conference Code:95594
%L scholars2602
%J ICCAS 2012 - 2012 IEEE International Conference on Circuits and Systems: "Advanced Circuits and Systems for Sustainability"
%D 2012
%R 10.1109/ICCircuitsAndSystems.2012.6408315
%T An interface circuit design based on differential capacitive sensors for accurate measurement of water contents in crude oil
%A M. Assaad
%A M.Z. Aslam
%C Kuala Lumpur
%P 263-266