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含金属芯压电纤维传感Lamb波方向性研究 被引量：6

Study of directivity of metal-core piezoelectric fiber sensing Lamb waves
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摘要 含金属芯压电纤维(MPF)是一种新型压电功能器件。阐述了基于小波变换的Lamb波能量因子计算原理,把MPF作为Lamb波传感器,分别采用幅值和小波变换能量因子的方法对MPF传感Lamb波的方向性进行了研究。研究结果表明:MPF对Lamb波的传感表现出很强的方向性。相比采用幅值表征的结果,采用能量因子进行传感方向性表征更能体现出MPF对Lamb波的方向性传感特性。 Metal-core piezoelectric ceramic fiber （MPF） is a new type of piezoelectric ceramic device. The calculating principle of Lamb wave energy factor based on wavelet transform is introduced. MPF is used as sensor of Lamb wave. The directivity of MPF sensing Lamb wave is researched using amplitude and wavelet transform energy factor method respectively. Results show that MPF has high direetivity to sense Lamb wave, the directivity characterized by wavelet transformation energy factor shows more clear in comparison with amplitude.
作者 刘建 裘进浩 常伟杰 季宏丽 朱孔军
机构地区 南京航空航天大学智能材料与结构航空科技重点实验室
出处 《传感器与微系统》 CSCD 北大核心 2011年第2期54-56,67,共4页 Transducer and Microsystem Technologies
基金 国家"863"计划资助项目(2007AA03Z104) 国家自然科学基金重点资助项目(50830201) 教育部长江学者创新团队项目(IRT0906)
关键词 含金属芯压电纤维 LAMB波 小波变换 方向性 结构健康监测 metal-core piezoelectric ceramic fiber （MPF） Lamb wave wavelet transform directivity structural health monitoring
分类号 TB553 [理学—声学] TN384 [电子电信—物理电子学]
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参考文献7

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  • 1杨宾峰,罗飞路.脉冲涡流无损检测技术应用研究[J].仪表技术与传感器,2004(8):45-46. 被引量：30
  • 2杨凤霞,李智华,张端明,韩祥云,钟志成,郑克玉,魏念,关丽.压电复合材料的电弹耦合特性分析[J].复合材料学报,2005,22(2):121-124. 被引量：6
  • 3杜善义,张博明.飞行器结构智能化研究及其发展趋势[J].宇航学报,2007,28(4):773-778. 被引量：32
  • 4YONG Lv, ZHANG Xiaoyu, LI Zhouqiu. Study on ERT system of SMART layer of carbon fiber compos ite[J]. Applied Mechanics and Materials,2011,48(2): 1154-1157.
  • 5YANG S M,HUNG C C,CHEN K H. Design and fabrication of a SMART layer module in composite laminated structures [J]. SMART Materials and Struc tures,2005,14(2) :315-320.
  • 6LIN M,QING Xinlin,KUMAR A,et al. SMART layer and SMART suitcase for structural health monitoring applications[A]. In: Proceedings of the SHE-The International Society for Optical Engineering[C]//CA, USA : Newport Beach, 2001 : 98-106.
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  • 8DONG Xiaoma. Study of fiber-optic SMART layer based on FBG sensors[A]. In: 2010 2nd International Conference on Networking and Digital Society[C]// Wenzhou, China : 2010 : 346-348.
  • 9PAN Xiaowen, LIANG Dakai, LI Dongsheng. Optical fiber sensor layer embedded in SMART composite material and structure[J]. SMART Materials and Structures, 2006,15 (5) : 1231-1234.
  • 10STEFAN H,LOTHAR G. Smart layer for damage di-agnostics[J]. Journal of Intelligent Material Systems and Structures, 2004,15 : 729-736.

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传感器与微系统
2011年 第2期

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