Double-layer electret transducer

被引：35

作者：

Kacprzyk, R

Dobrucki, A

Gajewski, JB

机构：

[1] Inst. of Elec. Eng. and Technology, Technical University of Wroclaw, 50-370 Wroclaw

[2] Inst. of Telecom. and Acoustics, Technical University of Wroclaw, 50-370 Wroclaw

[3] Inst. Heat Eng. and Fluid Mechanics, Technical University of Wroclaw, 50-370 Wroclaw

来源：

JOURNAL OF ELECTROSTATICS | 1997年 / 39卷 / 01期

关键词：

electret; piezoelectric transducer; electrical double-layer; corona charging; PTFE foil;

D O I：

10.1016/S0304-3886(96)00030-7

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：

A simplified analysis of the double-layer electret with a frozen space charge leads to the conclusion that such a structure can show a piezoelectric effect when the elasticity coefficients of the layers differ. Results of experiments carried out on the PTFE foil-PP non-woven fabric sandwich confirm the possibility of construction of a simple and relatively sensitive transducer using this effect.

引用

页码：33 / 40

页数：8

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