CAJ | 학술논문

针对电容层析成像技术的局限性，提出了新型双阵列电容传感器。利用传感器相邻极板灵敏度不均匀的特点，通过测量相邻极板电容以获得传感器内部局部浓度，重建管道内部传感器截面的相浓度分布。建立有限元模型，对不同电极数的电容传感器结构进行分析，研究了管道介电常数、电极覆盖率等传感器参数对灵敏场不均匀度的影响，得出优化的传感器参数。实验结果显示，该方法可以有效获取传感器截面局部浓度。
침대전용층석성상기술적국한성，제출료신형쌍진렬전용전감기。이용전감기상린겁판령민도불균균적특점，통과측량상린겁판전용이획득전감기내부국부농도，중건관도내부전감기절면적상농도분포。건립유한원모형，대불동전겁수적전용전감기결구진행분석，연구료관도개전상수、전겁복개솔등전감기삼수대령민장불균균도적영향，득출우화적전감기삼수。실험결과현시，해방법가이유효획취전감기절면국부농도。
Twin￣array capacitance sensor is proposed to solve the limitation of Electrical Capacitance Tomography ( ECT) . The sensitivity non￣uniformity of neighbor electrode is used to reconstruct the concentration distribution of cross section in the sensor pipeline. The sensor structures with different electrode number are analyzed by Finite El￣ement Method. The influence of the pipeline permittivity and the electrode coverage on sensitivity distribution is in￣vestigated. And the optimum sensor parameters are obtained. The experimental result indicated that local concentra￣tion of cross section can be extracted from the neighbor electrodes of array capacitance sensor effectively.