• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International Conference on Computer, Communications, and Control Technology >Bone-crack detection by piezoeletric-electromechanical impedance method
【24h】

Bone-crack detection by piezoeletric-electromechanical impedance method

机译：压电机电阻抗法进行骨裂纹检测

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

There is a growing interest in the application of smart materials such as piezoelectric in the biomedical field. The work presented in this paper is an attempt to demonstrate the feasibility of bone-crack detection by using piezoelectric-electromechanical impedance (EMI) method, which has the advantages of low cost, portable and simplicity in measurement. A piezoelectric transducer known as PZT (lead zirconate titanate) was used for actuating and sensing simultaneously and as a means of coupling the electrical and mechanical impedance. The basis of this novel method is to monitor variation in the mechanical impedance of a structural element via electrical impedance of a piezoelectric transducer attached to the host structure. In this study, a PZT transducer was used to detect artificially induced cracks in a bone. EMI measurements were carried out using AD5933 evaluation board for frequency range between 0.04 kHz to 100 kHz. The results obtained from the experiment were analyzed by quantifying the damage index using root mean square deviation (RMSD) of the impedance signals before and after cracks were induced in the bone. The results from the study show the feasibility of the piezoelectric-EMI method to effectively detect physical changes in the bone due to the artificially induced cracks.
机译：人们对生物材料领域中诸如压电之类的智能材料的应用越来越感兴趣。本文提出的工作是试图证明使用压电-机电阻抗（EMI）方法进行骨裂纹检测的可行性，该方法具有成本低，便于携带和测量简单的优点。压电换能器PZT（钛酸锆钛酸铅）被用于同时致动和传感，并用作耦合电气和机械阻抗的手段。这种新颖方法的基础是通过附着在主体结构上的压电换能器的电阻抗来监视结构元件的机械阻抗的变化。在这项研究中，PZT换能器用于检测人为引起的骨骼裂缝。 EMI测量是使用AD5933评估板在0.04 kHz至100 kHz的频率范围内进行的。通过使用在骨骼中引起裂纹之前和之后的阻抗信号的均方根偏差（RMSD）量化损伤指数来分析从实验获得的结果。研究结果表明，压电EMI方法可有效检测由于人为诱发的裂缝而引起的骨骼物理变化。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号