压电复合材料用于透镜式聚焦换能器的研究

doi:10.15541/jim20140601

无机材料学报 ›› 2015, Vol. 30 ›› Issue (7): 745-750.DOI: 10.15541/jim20140601

压电复合材料用于透镜式聚焦换能器的研究

何敏¹, 郝琦¹, 王科鑫¹, 曾德平¹, 叶方伟², 李发琪¹, 王智彪¹, 何虹莹³

(1. 重庆医科大学生物医学工程学院, 省部共建超声医学工程国家重点实验室培育基地—重庆市超声医学工程重点实验室, 超声医学工程重庆市重点实验室, 重庆 400016; 2. 超声医疗国家工程研究中心, 重庆 401121; 3. 四川大学材料科学与工程学院, 成都 610064)

收稿日期:2014-11-20 修回日期:2015-03-06 出版日期:2015-07-20 网络出版日期:2015-06-25
作者简介:何敏(1990–), 女, 硕士研究生. E-mail:kathy1210@foxmail.com
基金资助:
国家自然科学基金委重大科学仪器设备研制专项(81127901);国家自然科学基金(81201102, 11274404);国家重点基础研究发展计划(973项目, 2011CB707900);重庆市科技项目(2010BB5368)

Properties of a Lens-focused Transducer Based on Piezoelectric Composites

HE Min¹, HAO Qi¹, WANG Ke-Xin¹, ZENG De-Ping¹, YE Fang-Wei², LI Fa-Qi¹, WANG Zhi-Biao¹, HE Hong-Ying³

(1. State Key Laboratory of Ultrasound Engineering in Medicine Co-Founded by Chongqing and the Ministry of Science and Technology, College of Biomedical Engineering, Chongqing Key Laboratory of Biomedical Engineering, Chongqing Medical University, Chongqing 400016, China; 2. National Engineering Research Center of Ultrasound Medicine, Chongqing 401121, China; 3. College of Materials Science and Engineering of Sichuan University, Chengdu, Sichuan 610064, China)

Received:2014-11-20 Revised:2015-03-06 Published:2015-07-20 Online:2015-06-25
About author:HE Min. E-mail:kathy1210@foxmail.com
Supported by:
National Natural Science Foundation of China (81127901, 81201102, 11274404);State Key Development Program for Basic Research of China (973 program, 2011CB707900);Science and Technology Project of Chongqing (2010BB5368)

摘要/Abstract

摘要：

为了增加聚焦换能器的带宽, 抑制其多模振动耦合现象, 提高电声转换效率, 实验采用1-3型压电复合材料代替压电陶瓷作为超声发射材料, 设计并制作了一种新型的1-3型压电复合材料透镜式聚焦换能器。通过频率特性的对比研究, 证明了1-3型压电复合材料透镜式聚焦换能器不仅能增加换能器的带宽, 达到PZT压电陶瓷透镜式聚焦换能器带宽的3.13倍, 而且能明显抑制径向振动, 得到单一纯净的厚度振动模态。另外, 1-3型压电复合材料透镜式聚焦换能器的电声转换效率达到PZT压电陶瓷透镜式聚焦换能器的1.88倍, 为高效率聚焦超声换能器的实现提供了理论及实验基础。

关键词: 1-3型压电复合材料, 聚焦换能器, 声透镜, 电声转换

Abstract:

To broaden the bandwidth of focused transducer with suppressing the multimode coupling phenomenon, and improving the electro-acoustic conversion efficiency, 1-3 piezoelectric composites as the ultrasonic emission material was used to replace Pb-based lanthanum doped zirconate titanates ceramic. A new type of lens-focused transducer was designed and produced based on 1-3 piezoelectric composites. Through the comparative study of frequency characteristic, it is proved that the 1-3 piezoelectric composites lens-focused transducer can not only increase the bandwidth of the transducer which is 3.13 times of the one based on Pb-based lanthanum doped zirconate titanates, but also suppress the radial vibration obviously to obtain a single pure vibration modes. Besides, the electro-acoustic conversion efficiency of the former lens-focused transducer is 1.88 times of the latter one. These results provide a theoretical and experimental foundation for the realization of ultrasonic transducer of high efficiency on reliability and stability.

Key words: 1-3 piezoelectric composites, focused transducer, acoustic lens, electro-acoustic conversion

中图分类号:

TQ050

何敏, 郝琦, 王科鑫, 曾德平, 叶方伟, 李发琪, 王智彪, 何虹莹. 压电复合材料用于透镜式聚焦换能器的研究[J]. 无机材料学报, 2015, 30(7): 745-750.

HE Min, HAO Qi, WANG Ke-Xin, ZENG De-Ping, YE Fang-Wei, LI Fa-Qi, WANG Zhi-Biao, HE Hong-Ying. Properties of a Lens-focused Transducer Based on Piezoelectric Composites[J]. Journal of Inorganic Materials, 2015, 30(7): 745-750.

图/表 8

图1 1-3型压电复合材料示意图

Fig. 1 Schematic diagram of 1-3 piezoelectric composites

图2 压电复合材料制作流程图

Fig. 2 Fabrication flow chart of piezoelectric composites

图3 1-3型压电复合材料显微镜图片

Fig. 3 Microscope figure of 1-3 piezoelectric composites

图4 透镜式聚焦换能器结构示意图(a)和实物图片(b)

Fig. 4 Structure diagram (a) and photo (b) of lens-focused transducer

图5 PZT压电陶瓷和1-3型压电复合材料阻抗谱图

Fig. 5 Frequency-impedance and frequency-phase curves of PZT piezoceramics and 1-3 piezoelectric composites

表1 材料的机电耦合系数

Table 1 Electromechanical coupling coefficient of material

Material parameters	PZT piezoceramics	1-3 piezoelectric composites
k_t	0.48	0.64
k_p	0.58	0.33
k_t/k_p	0.83	1.94

图6 透镜式聚焦换能器的频率特性曲线图

Fig. 6 Frequency-impedance and frequency-phase curves of lens-focused transducer (a) PZT piezoceramics; (b) 1-3 piezoelectric composites

图7 透镜式聚焦换能器的电声转换曲线

Fig. 7 Electric power-sound power (a) and electro-acoustic conversion efficiency (b) curves of lens-focused transducer

参考文献 24

[1]	FENG RUO.Rapid rise of focused ultrasound therapeutic technique and prospect in China.Technical Acoustics, 2011, 30(1): 17-20.
[2]	ZHANG DE-JUN.High intensity focused transducer. Journal of Ultrasonic Diagnosis of China, 2000(1):11-18.
[3]	TANG XU-DONG, ZENG DE-PING, YANG ZENG-TAO, et al.Design of the lens-focused transducer based on 1-3 piezoelectric composites.Piezoelectrics & Acoustiooptics, 2013, 35(4): 546-548.
[4]	NEWNHAM R E, SKINNER D P, CROSS L E.Connectivity and piezoelectric-pyroelectric composites.Mat. Res. Bull., 1978, 13(5): 525-536.
[5]	WANG SHU-BIN, XU TING-XIAN, HAN JIE-CAI, et al.Preparation and properties of piezoelectric composites of PZT/PVDF.Acta Materiae Compositae Sinica, 2000, 17(4): 1-5.
[6]	SOARES CJ, SANTANA F R, PEREIRA J C, et al.Influence of airborne-particle abrasion on mechanical properties and bond strength of carbon/epoxy and glass/bis-GMA fiber-reinforced resin posts.J. Prosthet. Dent., 2008, 99(6): 444-454.
[7]	TACK J L, FORD D M.Thermodynamic and mechanical properties of epoxy resin DGEBF crosslinked with DETDA by molecular dynamics.J. Mol. Graph. Model., 2008, 26(8): 1269-1275.
[8]	ZHANG HUI, ZHANG HUI, TANG LONG-CHENG, et al.The effects of alumina nanofillers on mechanical properties of high-performance epoxy resin.J. Nanosci. Nanotechnol., 2010, 10(11): 7526-7532.
[9]	ABRAR A, ZHANG D, SU B, et al.1-3 connectivity piezoelectric ceramic-polymer composite transducers made with viscous polymer processing for high frequency ultrasound.Ultrasonics, 2004, 42(1-9): 479-484.
[10]	HARRIS G R, GAMMELL P M.1-3 piezoelectric composite transducers for swept-frequency calibration of hydrophones from 100 kHz to 2 MHz.J. Acoust. Soc. Am., 2004, 115(6): 2914-2918.
[11]	YANG H C, CANNATA J, WILLIAMS J, et al.Crosstalk reduction for high-frequency linear-array ultrasound transducers using 1-3 piezocomposites with pseudo-random pillars.IEEE Trans. Ultrason Ferroelectr Freq. Control., 2012, 59(10): 2312-2321.
[12]	CHEN GIN-SHIN, LIU HSIN-CHIH, LIN YU-LI, et al.Experimental analysis of 1-3 piezocomposites for high-intensity focused ultrasound transducer applications.IEEE Trans. Biomed. Eng., 2013, 60(1): 128-134.
[13]	SCHULGASSER K.Relationships between the effective properties of transversely isotropic piezoelectric composite.J. Mech. Phys. Solids, 1992, 40(2): 473-479.
[14]	BENVENISTE Y, DVORAK G J.Uniform fields and universal relations in piezoelectric composites.J. Mech. Phys. Solids, 1992, 40(6): 1295-1312.
[15]	DUNN MARTIN L.Micromechanics of coupled electroelastic composites: effevtive thermal expansion and pyroelectric coefficients. J. Appl. Phys, 1993, 73(10): 5131-5140.
[16]	JOHN W, SLIWA J R. Method for Making Piezoelectric Composite. US United States Patent.5239736, 1993.
[17]	WANG YUAN-YUAN, LI LI, WANG LI-KUN, et al.Fabrication of 1-3 piezoelectric composite electrode.Functional Materials, 2007, 38(Suppl.): 738-740.
[18]	NIEDERHAUSER J J, JAEGER M, FRENZ M.Real-time three-dimensional optoacoustic imaging using an acoustic lens system.Appl. Phys. Lett., 2004, 85(5): 846-848.
[19]	ANDREAS HAKANSSON, FRANCISCO CERVERA, JOSE SANCHEZ-DEHESAA. Sound focusing by flat acoustic lenses without negative refraction. Appl. Phys. Lett., 2005, 86(5): 054102-1-3.
[20]	GURURAJA T R, SCHULZE W A, NEWNHAM R E. Piezoelectric composite materials for ultrasonic transducer applications. Part 1: Resonant modes of vibration of PZT rod-polymer composites. IEEE Transactions on Sonic and Ultrasonics, 1985(Suppl.), 32(4): 481-498.
[21]	SLIWA JOHN W, GOETZ JOHN P, MA ZHEN-YI, et al. Device for high intensity focused Ultrsound Treatment with Acoustic Lens. U.S. European Patent. 2 112 906 B1, 2013.
[22]	ZHEN ZU-HUA, Li JIN-FENG.Preparation and performance of fine 1-3 type piezoelectric PZT/epoxy resin composite material.Journal of the Chinese Ceramic Society, 2006, 34(3): 381-384.
[23]	HUANG SHI-FENG, YE ZHENG-MAO, WANG SHOU-DE, et al.Preparation and properties of 1-3 cement-based piezoelectric composites.Acta Materiae Compositae Sinica, 2007, 24(1): 122-126.
[24]	ZHAO SHOU-GEN, CHENG WEI.Research progress of 1-3 type piezoelectric composites.Advances in Mechanics, 2002, 32(1): 57-68.

压电复合材料用于透镜式聚焦换能器的研究

Properties of a Lens-focused Transducer Based on Piezoelectric Composites

RichHTML

PDF (PC)

可视化

被引次数

摘要/Abstract

引用本文

使用本文

图/表 8

参考文献 24

相关文章 6

编辑推荐

Metrics

本文评价

[1]	刘茜, 王家成, 周真真, 徐小科. 微纳粉体样品库高通量并行合成的研究进展[J]. 无机材料学报, 2021, 36(12): 1237-1246.
[2]	马西飞, 林根连, 康庄, 黄晓. 复合莫来石纤维前驱体结晶行为研究[J]. 无机材料学报, 2017, 32(7): 739-743.
[3]	沈岳松,祝社民,丘泰,沈树宝. Ti-Zr-V-O复合催化材料的制备及其选择性催化还原NO[J]. 无机材料学报, 2009, 24(3): 457-462.
[4]	覃礼钊,张旭,吴正龙,刘安东,廖斌. 磁过滤阴极弧制备四面体非晶碳膜热稳定性研究[J]. 无机材料学报, 2008, 23(4): 789-793.
[5]	焦志辉,张孝彬,程继鹏,陶新永,贺狄龙. 碳纳米管/ZnS复合材料的制备及其性能表征[J]. 无机材料学报, 2008, 23(3): 491-495.
[6]	李永利,乔冠军,金志浩. 可切削加工陶瓷材料研究进展[J]. 无机材料学报, 2001, 16(2): 207-211.