| 解耦的声表面波波动方程的求解 |
| |
| 引用本文： | 李良儿,俞红杰,沈晓群,施文康. 解耦的声表面波波动方程的求解[J]. 传感技术学报, 2005, 18(1): 205-208,211 |
| |
| 作者姓名： | 李良儿 俞红杰 沈晓群 施文康 |
| |
| 作者单位： | 1. 浙江海洋学院电气工程系,舟山,316004
2. 上海交通大学,电子信息与电气工程学院,上海,200030 |
| |
| 摘 要： | 由于压电材料对称性的存在,当一些压电材料取某些特殊切型时,声表面波存在着解耦现象,解耦波常有几种固定的模式.本文对解耦的声表面波波动方程的求解进行了研究.并以PZT-5H材料为例,用编制的程序对解耦的纯Rayleigh波和B-G波进行了计算机数值求解,其结果与文献[3]的值一致.说明这一求解原理和方法普遍适用于对各种解耦的声表面波波动方程的求解.对于全面分析SAW的传播特性具有一定的参考价值.
|
| 关 键 词： | 解耦 波动方程求解 |
| 文章编号： | 1004-1699(2005)01-0205-04 |
The Solutions of the Motion Equations of Decoupling Surface Acoustic Waves |
| |
| LI Liang??er,YUHong??jie,SHEN Xiao??qun,SHI Wen??hang.. The Solutions of the Motion Equations of Decoupling Surface Acoustic Waves[J]. Journal of Transduction Technology, 2005, 18(1): 205-208,211 |
| |
| Authors: | LI Liang??er YUHong??jie SHEN Xiao??qun SHI Wen??hang. |
| |
| Affiliation: | Dept. of Electrical Engineering of Zhej iang Ocean University , Zhoushan 316004, China |
| |
| Abstract: | Because of the symmetry of piezoelectric materials, when some piezoelectric materials choose special cutting types, surface acoustic waves have decoupling phenomenon. Decoupling surface acoustics waves usually have some fixed modes. This paper analyzes the solutions of the motion equations of decoupling surface acoustic waves. For our model material PZT-5H, we write programs to work out numerical solutions of decoupling pure Rayleigh wave and B-G wave. The results are consistent with the values in a document, proving that this solving principle and method can commonly be applied to solving motion equations of various kinds of decoupling surface acoustic waves. This has certain reference value to analyze completely SAW propagating characteristics. |
| |
| Keywords: | SAW |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《传感技术学报》浏览原始摘要信息 |
|
点击此处可从《传感技术学报》下载全文 |
|
