TY - CONF AV - none CY - Kuala Lumpur KW - Accurate measurement; ADC; Capacitance variation; Dielectric permittivities; Differential capacitive sensors; Interface circuits; Oil-water mixture; Voltage change KW - Capacitance; Capacitive sensors; Crude oil; Logic circuits; Permittivity; Sensors; Sustainable development; Water content KW - Integrated circuit manufacture TI - An interface circuit design based on differential capacitive sensors for accurate measurement of water contents in crude oil SP - 263 ID - scholars2602 N2 - 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. N1 - 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 SN - 9781467331197 Y1 - 2012/// EP - 266 UR - https://www.scopus.com/inward/record.uri?eid=2-s2.0-84873967405&doi=10.1109%2fICCircuitsAndSystems.2012.6408315&partnerID=40&md5=df6f5fe394e2fa37d6c889e2b65a5dbe A1 - Assaad, M. A1 - Aslam, M.Z. ER -