Lateral Mode Coupling to Reduce the Electrical Impedance of Small Elements Required for High Power Ultrasound Therapy Phased Arrays

被引：14

作者：

Hynynen, Kullervo ^{[1
,2
]}

Yin, Jianhua ^{[1
]}

机构：

[1] Sunnybrook Hlth Sci Ctr, Toronto, ON M4N 3M5, Canada

[2] Univ Toronto, Dept Med Biophys, Toronto, ON, Canada

来源：

IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL | 2009年 / 56卷 / 03期

关键词：

SURGERY; DESIGN; SYSTEM;

D O I：

10.1109/TUFFC.2009.1072

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

A method that USES lateral coupling to reduce the electrical impedance of small transducer elements in generating. ultrasound waves was tested. Cylindrica, radially polled transducer elements were driven at their length resonance frequency. Computer simulation all(:[ experimental studies showed that the electrical impedance of die transducer element could be controlled by the cylinder wall thickness, while the operation frequency was determined by the cylinder length. Acoustic intensity (averaged over the cylinder diameter) over 10 W/ cm(2) (a therapeutically relevant intensity) was measured from these elements.

引用

页码：557 / 564

页数：8

共 2 条

[1] Large Improvement of the Electrical Impedance of Imaging and High-Intensity Focused Ultrasound (HIFU) Phased Arrays Using Multilayer Piezoelectric Ceramics Coupled in Lateral Mode
Song, Junho
Lucht, Benjamin
Hynynen, Kullervo
IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL, 2012, 59 (07) : 1584 - 1595
[2] Feasibility of Using Lateral Mode Coupling Method for a Large Scale Ultrasound Phased Array for Noninvasive Transcranial Therapy
Song, Junho
Hynynen, Kullervo
IEEE TRANSACTIONS ON BIOMEDICAL ENGINEERING, 2010, 57 (01) : 124 - 133

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