Improved performance of d31-mode needle-actuating transducer with PMN-PT piezocrystal

Jiang, T., Xia, C., Cochran, S. and Huang, Z. (2018) Improved performance of d31-mode needle-actuating transducer with PMN-PT piezocrystal. IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 65(8), pp. 1415-1422. (doi: 10.1109/TUFFC.2018.2838566)

Abstract

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.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Cochran, Professor Sandy
• Authors: Jiang, T., Xia, C., Cochran, S., and Huang, Z.
• College/School: College of Science and Engineering > School of Engineering > Systems Power and Energy
• Journal Name: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
• Publisher: IEEE
• ISSN: 0885-3010
• ISSN (Online): 1525-8955
• Published Online: 21 May 2018
• Copyright Holders: Copyright © 2018 IEEE
• First Published: First published in IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control 65(8): 1415-1422
• Publisher Policy: Reproduced in accordance with the publisher copyright policy

Project Code	Award No	Project Name	Principal Investigator	Funder's Name	Funder Ref	Lead Dept
61072	1	Ultrasonic Needles based on Mn-doped Ternary Piezocrystals	Margaret Lucas	Engineering and Physical Sciences Research Council (EPSRC)	EP/K020013/1	ENG - ENGINEERING SYSTEMS POWER & ENERGY