| 弯曲振动压电陶瓷换能器 |
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| 引用本文： | 林书玉.弯曲振动压电陶瓷换能器[J].压电与声光,1994,16(5):27-30,40. |
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| 作者姓名： | 林书玉 |
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| 作者单位： | 陕西师范大学应用声学研究所 |
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| 摘 要： | 介绍了一种夹心式弯曲振动压电陶瓷换能器，该换能器由压电陶瓷半圆片、前后金属盖板以及预应力螺栓三部分组成，在结构上类似于夹心式纵向振动换能器。从弯曲振动细棒的运动方程出发，得出了夹心式弯曲振动压电换能器的频率设计方程，在此基础上，进行了弯曲振动换能器设计，结果表明，利用本文得出的公式设计换能器，其共振频串的测试值与设计值基本符合。
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| 关 键 词： | 弯曲振动 压电陶瓷 换能器 共振频率 |
Piezoelectric Ceramic Flexural Vibrating Transducer |
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| Lin Shuyu.Piezoelectric Ceramic Flexural Vibrating Transducer[J].Piezoelectrics & Acoustooptics,1994,16(5):27-30,40. |
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| Authors: | Lin Shuyu |
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| Abstract: | his paper presents the sandwiched piezoelectric ceramic flexural transducer.The transducer composed of piezoelectric ceramic semicircuilar element,back and front metal covers,and pre-stressed belt.Based on the classical flexural vibration theory of slender rods,the reso-nance frequency equation of sandwiched piezoelectric ceramic transducer was derived.Some con-siderations concerned with the design of practical sandwiched flexural transducer were discussed.Six sandwiched transducers were designed and their resonance frequencies were measured.The ex-periments show that the meaxured resonance frequencies are in good agreement with the calculated results. |
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| Keywords: | flexural vibration piezoelectric ceramic transdUcer resonance frequency |
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