非闭合电极电容层析成像传感器的设计及实验研究  

Experimental Research on an Unclosed Electrode Sensor of Electrical Capacitance Tomography

作　　者：刘靖[1] 姜凡[1] 孙猛[1] 刘石[1] 

机构地区：[1]中国科学院工程热物理研究所,北京100080

出　　处：《传感技术学报》2007年第9期1983-1986,共4页Chinese Journal of Sensors and Actuators

基　　金：国家自然基金项目资助(40501017);国家自然基金重点项目资助(60532020)

摘　　要：提出并制作了一种新型的非闭合电极电容传感器,对其敏感场进行了计算,利用该传感器对实际物体进行了测试,并对测试结果实现了物体图像重建.结果表明,该传感器对不同介电常数物质测试敏感,利用所计算的敏感场能够由测试电容信号重建出物体的图像,从而为电容层析成像技术进行冻土测试提供了实验基础.A novel unclosed electrodes sensor was presented and made to measure matter composition and dynamic variation in frozen soil by Electrical Capacitance Tomography（ECT）. Its sensitivity maps were calculated. Objects in the sensor were test and these images were reconstructed. The results indicate that the sensor is sensitive to different dielectric constant objects and the objects＇ images were reconstructed by the sensitivity maps of the sensor, which will provide instructive information for the further study of the application of ECT in the frozen soil.

关 键 词：电容层析成像 传感器 图像重建 冻土 

分 类 号：TP212.1[自动化与计算机技术—检测技术与自动化装置]