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《Chinese Journal of Sensors and Actuators》 2007-05
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Visualized Measurement Instrument of Two-Phase Flow Based on Electrical Capacitance Tomography Technique

CHEN De-yun,HUANG Jia-ding,WU Rui-fen,YU Xiao-yang(Harbin University of Science and Technology,Harbin 150080,China)  
To aim at measurement problem of parameters for ECT system of oil-water two-phase flow,the mathematic model of the oil-water two-phase distribution information is established based on double integral infinitesimal principle.An ECT measurement system of 8-electrode oil-water two-phase flow is set up that is comprised of a measurement circuit with stray-capacitance-resistance and a 80C32 SCM,both of which controls the measurement among the pole plates and the capture system.The image reconstruction for oil-water two-phase cross-sectional image and the calculating of oil-water two-phase water content can be accomplished by an adaptive threshold image reconstruction algorithm,and the precision of reconstruction is about 1%,which can meet the need of identification of flow regime for oil-water two-phase flow.Therefore,it offers a new method for the visualized measurement of oil-water two-phase flow parameters.
【Fund】: 国家自然科学基金资助(60572153);; 国家教育部重点科技项目资助(204043);; 黑龙江省重点科技攻关项目资助(GC05A510);; 黑龙江省骨干教师创新计划项目资助(10551043);; 哈尔滨市重点科技攻关项目资助(2005AA1CG035);; 黑龙江省自然科学基金资助(F200609)
【CateGory Index】: TP274.2
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