【作者】 董恩生； 孙国强； 董永贵； 潘海洋； 徐勇超；

【Author】 Dong Ensheng~1 Sun Guoqiang~1 Dong Yonggui~2 Pan Haiyang~1 Xu Yongchao~1 (1 Dept. of Aviation Control and Engineering, Aviation University of Air Force, Changchun, 130022, China; 2 State Key Laboratory of Precision Measurement Technology and Instruments, Tsinghua University, Beijing, 100084, China)

【机构】 空军航空大学航空控制工程系； 清华大学精密测试技术及仪器国家重点实验室；

【摘要】 针对非金属材料部件结构异常的检测,提出同面多电极测量方法。对同面双电极之间的电容与极板长度、宽度、间距的关系进行了仿真。设计了同面8电极结构,并将其用于一种工程塑料板试件结构异常检测的实验,初步的实验结果表明,当被测对象结构发生异常时,与被测对象的健康状态相比较,测得电容值减小。同面多电极结构用于检测非金属材料部件结构异常是可行的。更多还原

【Abstract】 A uniplanar multi-electrode configuration is designed to detect the structure anomalies of non-metallic material component.The relations of the capacitances between the uniplanar double electrodes to the electrode length,width,and space between electrodes are simulated.An 8-electrode uniplanar capacitive sensor is designed for structure anomaly detecting experiment of an engineering plastic slab.The preliminary experimental results show that,compared with the healthy material,the measured capacitances decrease after structure anomaly of nonmetallic material component detected occurs.It is feasible for the uniplanar multi-electrode configuration to detect structure anomaly of non-metallic material component.更多还原