POLYMER-CERAMIC COMPOSITES FOR PIEZOELECTRIC SENSORS

被引：33

作者：

DIAS, C ^{[1
]}

DASGUPTA, DK ^{[1
]}

HINTON, Y ^{[1
]}

SHUFORD, RJ ^{[1
]}

机构：

[1] US LAB COMMAND,MAT RES LAB,WATERTOWN,MA 02172

来源：

SENSORS AND ACTUATORS A-PHYSICAL | 1993年 / 37-8卷

关键词：

D O I：

10.1016/0924-4247(93)80058-O

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Polymer/ceramic composites with 0-3 connectivity have been produced by introducing fine-grain modified lead titanate powder in the matrix of a copolymer of vinylidene fluoride and trifluorethylene (VDF/TrFE). The electromechanical coupling factor k(t), the acoustic impedance Z0 and the mechanical quality factor Q(m) of these films are determined. k(t) values in the range 30-35% have been achieved. Ultrasound transducers have been fabricated with these films. The impulse response of the transducer in the transmitting mode is determined. An attempt has been made to produce a theoretical model to match the experimental observations.

引用

页码：343 / 347

页数：5

共 8 条

[1] STUDY OF ACOUSTIC-WAVE RESONANCE IN PIEZOELECTRIC PVF2 FILM [J].