The method of matching resonance frequencies in coupled transmitter PVDF/TRFE diaphragms

被引：8

作者：

Hilczer, B ^{[1
]}

Kulek, J ^{[1
]}

Markiewicz, E ^{[1
]}

Szczesniak, L ^{[1
]}

机构：

[1] Polish Acad Sci, Inst Mol Phys, Poznan, Poland

来源：

IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION | 2000年 / 7卷 / 04期

关键词：

D O I：

10.1109/94.868068

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：

The influence of thermal aging on the resonance frequency and electric impedance of polyvinylidenefluoride (PVDF) type polymer films was studied with the aim to apply thermal treatment to modify and tune the parameters of polymer electromechanical transducers. Results of our study show that thermal treatment of PVDF/TRFE 75/25 copolymer in the temperature range 50 to 125 degrees C (10 min) can be applied for matching the resonance frequencies of coupled transducers. The resonance frequency of the copolymer was found to increase linearly with the rise of the annealing temperature by similar to 12%, whereas the related decrease in the electromechanical coupling coefficient does not exceed similar to 11%.

引用

页码：498 / 502

页数：5

共 14 条

[1] CURIE TRANSITION, FERROELECTRIC CRYSTAL-STRUCTURE, AND FERROELECTRICITY OF A VDF/TRFE(75/25) COPOLYMER .1. THE EFFECT OF THE CONSECUTIVE ANNEALING IN THE FERROELECTRIC STATE ON CURIE TRANSITION AND FERROELECTRIC CRYSTAL-STRUCTURE [J].