非介质材料物体的电磁时域特征的摄取  

Obtaining of electromagnetic time domain character of non-insulator object

作　　者：谢新华[1] 叶明[1] 曾令海[1] 

机构地区：[1]上海大学通信与信息工程学院,上海200072

出　　处：《传感器技术》2005年第6期12-13,16,共3页Journal of Transducer Technology

摘　　要：阐述了应用电磁场的时域和频域性质对非介质材料进行无损检测和识别。通过理论分析和实验证明用不同的激励源和激励方式激励同一对象,可得到不同的响应结果;用相同的激励源和激励方式激励不同的对象,也可得到不同的响应结果。通过分析和选择针对问题的激励来取得一个特异性尽可能强的特征向量空间,从而进行模式识别。The applications of electromagnetic field time and frequency domain character for nondestructive detection to non-insulator are discussed.The theoretical analysis and experimental results demonstrate that the responses from a particular object will be different by using different stimulation source and form.The responses of different objects will also be different in despite of using the same stimulation source and form.The objective of this study is to obtain a highly specific vector field via analyzing and selecting appropriate stimulation,thus to lead to a proper pattern recognition.

关 键 词：非介质材料 激励 响应 时域特征 模式识别 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]