Acoustical performance of an electrostrictive polymer film loudspeaker

被引：112

作者：

Heydt, R ^{[1
]}

Pelrine, R ^{[1
]}

Joseph, J ^{[1
]}

Eckerle, J ^{[1
]}

Kornbluh, R ^{[1
]}

机构：

[1] SRI Int, Menlo Park, CA 94025 USA

来源：

JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA | 2000年 / 107卷 / 02期

关键词：

D O I：

10.1121/1.428266

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

A new type of loudspeaker that generates sound by means of the electrostrictive response of a thin polymer film is described. Electrostrictive polymer film (EPF) loudspeakers are constructed with inexpensive, lightweight materials and have a very low profile. The films are typically silicone and are coated with compliant electrodes to allow large film deformations. Acoustical frequency response measurements from 5x5 cm (planar dimensions) prototype EPF loudspeakers are presented. Measurements of harmonic distortion are also shown, along with results demonstrating reduced harmonic distortion achieved with square-root wave shaping. Applications of EPF loudspeakers include active noise control and general-purpose flat-panel loudspeakers. (C) 2000 Acoustical Society of America. [S0001-4966(00)00502-6].

引用

页码：833 / 839

页数：7

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