ENERGY TRAPPING CHARACTERISTICS OF THE 2ND HARMONIC THICKNESS EXTENSIONAL VIBRATION IN A 2-LAYERED MONOLITHIC PIEZOELECTRIC PLATE

被引：14

作者：

ANDO, A

KITTAKA, T

OKADA, T

SAKABE, Y

WAKINO, K

机构：

[1] Murata Manufacturing Co., Ltd., Nagaokakyo-shi, Kyoto 617

来源：

FERROELECTRICS | 1990年 / 112卷

关键词：

D O I：

10.1080/00150199008012790

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Energy trapping characteristics of two-layered piezoelectric ceramic resonators hae been studied around their second-harmonic thickness-extensional vibration. The vibration was excited through external and internal electrodes; the latter was prepared in a monolithic plate utilizing the common process of manufacturing multilayered monolithic capacitors. The energy trapping of the frequency-lowering-type was observed in agreement with the calculation. If the unelectroded region is not polarized, energy trapping is not sufficiently realized because of its slight frequency-lowering. When the inner electrode is not placed at the middle of thickness, levels of the resonance response are dependent on harmonic order of the vibration. © 1990, Taylor & Francis Group, LLC. All rights reserved.

引用

页码：141 / 153

页数：13