期刊文献+

声表面波波动方程求解的速度分析 被引量:1

Analysis of solving speed in wave equations of surface acoustic waves
下载PDF
导出
摘要 声表面波(SAW)波动方程的求解是SAW传播特性分析的理论依据,也是材料切型优化的基础.在具体求解时需要采用不断反复迭代的数值算法,计算工作量非常庞大,因此加快求解速度对于提高计算效率显得格外重要.基于边界条件系数行列式值法求解SAW波动方程,通过对影响求解速度的各因素的理论分析,提出了利用相应的波动模式、材料的连续性和对称性等特点来缩短粗搜区间;通过合理选取初始步长、动态调整搜索步长等策略来加快求解速度.求解实践证明这些措施是有效的.为SAW传播特性的准确快速的分析提供参考. The solving of wave equations of Surface Acoustic Waves (SAW)is the theoretical foundation for analyzing SAW propagation characteristics. It is also the groundwork for optimizing material cutting. The numerical algorithm is needed to iterate continuous and repeatedly during the solving process. It will lead to huge complicated calculation. So how to speed up the solving process is very important for improving calculation efficiency. This paper introduces the method of boundary condition determinant for the solving of SAW wave equations, analyzes the corresponding factors which influence wave speed calculation, and puts forward several measures to shorten rough-search range according to the SAW modes, the continuity and symmetry of the material, and etc. The solving process is accelerated by the strategies such as reasonable choice of the initial step length, dynamic adjustment of the search step length. The solving practice proves that these measures and strategies are effective. These supply useful reference to the accurate and swift analysis of SAW propagation characteristics.
出处 《浙江工业大学学报》 CAS 2007年第3期320-324,共5页 Journal of Zhejiang University of Technology
基金 浙江省教育厅基金资助项目(20040535)
关键词 声表面波 波动方程 波动速度 surface acoustic waves wave equation wave speed
  • 相关文献

参考文献3

  • 1DAVLD P M.A history of surface acoustic wave devices[J].International Journal of High Speed Electronics and Systems,2000,10(3):553-573.
  • 2DVOESHERSTOV M Y,CHEREDNIK V I,CHIRIMANOV A P.Calculation of surface acouctic waves in crystals using the global optimizationg proceduer[J].Radiophysics and Quantum Electronics,2000,43(9):719-729.
  • 3李良儿,吉小军,施文康,张国伟.声表面波波速快速求解策略[J].上海交通大学学报,2005,39(4):656-660. 被引量:10

二级参考文献7

  • 1Reindl L, Pohl A, Scholl G. SAW-based radio sensor systems [J]. IEEE Sensors Journal, 2001, 1(1):69-78.
  • 2Alfred Pohl, Gerald Ostermayer, Franz Seifert.Wireless sensing using oscillator locked to remote high Q SAW resonators [J]. IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 1998,45(5):1161-1168.
  • 3Hartmann C. A global SAW ID-Tag with large data capacity [A]. Proceedings of the IEEE Ultrasonics Symposium [C]. Munich, Germany: IEEE, 2002. 65-69.
  • 4Auld B A. Acoustic fields and waves in solids [M].New York :John Wiley and Sons Inc, 1973.
  • 5水永安.声表面波与声表面波器件[R].南京:南京大学声学所,1998..
  • 6Morgan Davld P. History of surface acoustic wave devices [J]. International Journal of High Speed Electronics and Systems, 2000,10(3):553-573.
  • 7马晋毅,谢道华,吴裕功,胡明.A位非等配比对(NaBi)_(0.5(1-x)(Ba) _x TiO_3 性能的影响[J].压电与声光,2003,25(3):224-226. 被引量:7

共引文献9

同被引文献5

引证文献1

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部