FLEXI-DISTORTIONAL PIEZOELECTRIC COMPOSITES

被引：2

作者：

Carlson, W. B. ^{[1
]}

Schulze, W. A. ^{[1
]}

Newnham, R. E. ^{[2
]}

Cross, L. E. ^{[2
]}

机构：

[1] Alfred Univ, New York State Coll Ceram, Alfred, NY 14802 USA

[2] Penn State Univ, Mat Res Lab, University Pk, PA 16802 USA

来源：

FERROELECTRICS | 1996年 / 188卷

关键词：

Hydrophones; piezoelectrics; composites;

D O I：

10.1080/00150199608244875

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

An alternative form of a flexural amplification type sensor can be proposed using an amplified d(15) response. The mechanically amplified flexi-distortional system may improve the d(h)g(h) figure of merit by transferring the compressional stress on the device to a lateral shear on the electroceramic element. This type of amplified system is mechanically classified as distortional and, therefore, without volume change. By transforming the hydrostatic stress to transverse strain, as in the flexi-extensional devices, transverse forces can be used to develop shear strain and activate the d(15) coefficient. Electrodes are placed along the sides of the sensing element rather than along the top and bottom surfaces. Hexi-distortional devices are modeled in order to check for the limits of sensitivity in their performance.

引用

页码：11 / 20

页数：10