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| 基于圆形压电阵列的主动Lamb波损伤成像监测研究 | |
| 引用本文： | 王强,袁慎芳,田峰,江兵.基于圆形压电阵列的主动Lamb波损伤成像监测研究[J].传感器与微系统,2011,30(10):75-77,81. |
| 作者姓名： | 王强 袁慎芳 田峰 江兵 |
| 作者单位： | 1. 南京邮电大学自动化学院,江苏南京,210046 2. 南京航空航天大学智能材料与结构航空科技重点实验室,江苏南京,210016 3. 南京邮电大学通信与信息工程学院,江苏南京,210046 |
| 基金项目： | 国家自然科学基金资助项目(61001077); 南京邮电大学引进人才科研启动基金资助项目(NY209019) |
| 摘 要： | 对主动Lamb波结构健康监测中的压电阵列技术进行了研究。分析了传统的矩阵式压电阵列在应用中存在的问题,基于回声式原理研究设计了圆形压电阵列方法,分析了该方法的特点和信号采集过程,结合时间反转成像技术,实现对损伤的监测,实验结果表明:该方法能克服传统矩阵式压电阵列在应用中存在的监测范围、信号监测能力差异等问题,最后分析了圆形压电阵列还存在的问题。 |
| 关 键 词： | 传感器 阵列 Lamb波 损伤 |
Study on active Lamb wave damage imaging monitoring based on circle PZT array |
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| WANG Qiang,YUAN Shen-fang,TIAN Feng,JIANG Bing.Study on active Lamb wave damage imaging monitoring based on circle PZT array[J].Transducer and Microsystem Technology,2011,30(10):75-77,81. | |
| Authors: | WANG Qiang YUAN Shen-fang TIAN Feng JIANG Bing |
| Affiliation: | WANG Qiang1,YUAN Shen-fang2,TIAN Feng3,JIANG Bing1(1.School of Automation,Nanjing University of Post & Telecommunications,Nanjing 210046,China,2.The Aeronautic Key Laboratory for Smart Material and Structure,Nanjing University of Aeronautic and Astronautic,Nanjing 210016,3.School of Telecommunication and Information Engineering,China) |
| Abstract: | PZT array technique in active Lamb wave structural health monitoring is researched.The application problems of traditional matrix PZT array are analyzed.Echo type circle PZT array is designed.Its characters and the signal acquision process are presented.Based on the time reversal imaging technology,the damage can be detected.Experiment indicates that circle PZT array can overcome the problems of traditional matrix array,such as monitoring area and the monitoring ability difference of the signals.Shortcoming... |
| Keywords: | sensor array Lamb wave damage |
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