ELECTROACOUSTIC TRANSDUCERS USING PIEZOELECTRIC POLYVINYLIDENEFLUORIDE FILMS

被引:34
作者
LERCH, R
机构
[1] Technische Hochschule Darmstadt, Darmstadt, Merckstrasse 25
关键词
D O I
10.1121/1.383416
中图分类号
O42 [声学];
学科分类号
070206 ; 082403 ;
摘要
We have theoretically and experimentally analyzed microphones with cylindrical and spherical polyvinylidenefluoride diaphragms. In particular, the response of such microphones to airborne sound and to vibrations as a function of diaphragm geometry, acoustic impedance of the surrounding medium, coupling volume, and excitation was calculated. Most importantly, a relationship between the output voltage at low frequencies and the position of resonant frequencies was established. There is good agreement between calculated and measured frequency responses. © 1979, American Association of Physics Teachers. All rights reserved.
引用
收藏
页码:952 / 954
页数:3
相关论文
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