文献类型：期刊文献

英文题名：Improved Performance of d31-Mode Needle-Actuating Transducer With PMN-PT Piezocrystal

作者：Jiang, Tingyi[1];Xia, Chunming[2];Cochran, Sandy[3];Huang, Zhihong[1]

机构：[1]Univ Dundee, Sch Sci & Engn, Dundee DD1 4HN, Scotland;[2]East China Univ Sci & Technol, Sch Mech & Power Engn, Shanghai 200237, Peoples R China;[3]Univ Glasgow, Sch Engn, Glasgow G12 8QQ, Lanark, Scotland

年份：2018

卷号：65

期号：8

起止页码：1415

外文期刊名：IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL

收录：;EI(收录号：20182105230553);WOS:【SCI-EXPANDED(收录号:WOS:000440351400010)】；

基金：This work was supported by the UK Engineering and Physical Sciences Research Council under Grant EP/K020013. The work of T. Jiang was supported in part by the China Scholarship Council and in part by the University of Dundee.

语种：英文

外文关键词：d(31) mode; needle; needle-actuating device; piezocrystal; transducer

摘要：Prototypes of a PZT-based ultrasound needle-actuating device have shown the ability to reduce needle penetration force and enhance needle visibility with color Doppler imaging during needle insertion for tissue biopsy and regional anesthesia. However, the demand for smaller, lighter devices and the need for high performance transducers have motivated investigation of a different configuration of needle-actuation transducer, utilizing the d(31)-mode of PZT4 piezoceramic, and exploration of further improvement in its performance using relaxor-type piezocrystal. This paper outlines the development of the d(31)-mode needle actuation transducer design from simulation to fabrication and demonstration. Full characterization was performed on transducers for performance comparison. The performance of the proposed smaller, lighter d(31)-mode transducer is comparable with that of previous d(33)-mode transducers. Furthermore, it has been found to be much more efficient when using PMN-PT piezocrystal rather than piezoceramic.