|本期目录/Table of Contents|

[1]欧德平,殷涛,张顺起,等.磁声耦合成像声信号检测的实验研究[J].生物医学工程研究,2011,04:199-202.
 OU Deping,YIN Tao,ZHANG Shunqi,et al.Experiment of Acoustic Signal Detection on Magnetoacoustic Tomography[J].Journal of Biomedical Engineering Research,2011,04:199-202.
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磁声耦合成像声信号检测的实验研究(PDF)

《生物医学工程研究》[ISSN:1006-6977/CN:61-1281/TN]

期数:
2011年04期
页码:
199-202
栏目:
论著
出版日期:
2011-12-30

文章信息/Info

Title:
Experiment of Acoustic Signal Detection on Magnetoacoustic Tomography
作者:
欧德平殷涛张顺起马任刘志朋△
中国医学科学院 北京协和医学院 生物医学工程研究所,天津 300192
Author(s):
OU DepingYIN TaoZHANG ShunqiMA RenLIU Zhipeng
Institute of Biomedical Engineering, Chinese Academy of Medical Sciences & Peking Union Medical College,Tianjin 300192,China
关键词:
注入电流式磁声耦合实验设计铜线圈洛伦兹力信号检测
Keywords:
Electrical excitingMagneto-acoustic coupling effectExperimental designCopper coilsLorentz forceSignal detection
分类号:
R318
DOI:
-
文献标识码:
A
摘要:
对磁声耦合成像进行原理性验证实验研究。从不同的几何模型出发,分别建立了圆线圈、矩形线圈和三角形铜线圈模型作为成像目标,置于稳恒磁场中,同时对其施加正弦脉冲信号,用中心频率为1 MHz的声传感器检测铜线圈在磁声耦合作用下产生的声信号,在不同位置、不同角度检测产生的声信号并进行分析处理。实验结果表明,超声传感器采集的声信号能对应铜环线圈位置,在此基础上进一步完善实验方法,以磁声耦合的方式实现进一步的成像研究。
Abstract:
In this study,primary experiment was conducted to validate the principle of MAT-MI.Different geometrical models were designed corresponding to the models, phantoms of copper coil were manufactured with the shape of circle, rectangle, triangle, respectively.In the experiment,the phantoms were placed in a static magnetic field while microsecond sine pulse stimulations were imposed on the coils, and thus,acoustic responses signal was generated by magneto-acoustic effect, meanwhile acoustic signals were detected by the transducer with a central frequency of 1 MHz.Then,acoustic signal from different positions, different angle was detected and analyzed.The experiments show that the acoustic signal can reflect the conductivity boundaries of the sample. Furthermore, experiments may be designed to image the electric conductivity of the objects based on magneto-acoustic coupling effect.

参考文献/References

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备注/Memo

备注/Memo:
收稿日期:2011-10-20 国家自然科学基金资助项目(81171424;51137004);天津市应用基础重点项目(10JCZDJC17200) △通信作者Email:lzpeng67@163.com
更新日期/Last Update: 2011-12-30