Numerical and experimental investigation SAW in langasite
Numerical and experimental investigation SAW in langasite
复制标题
硅锰矿中声表面波的数值和实验研究
DOI：
10.1109/ultsym.1995.495604
复制
发表时间：
1995
期刊：
影响因子：
--
通讯作者：
A. Kozlov
中科院分区：
文献类型：
--
作者：
I. B. Yakovkin;R. Taziev;A. Kozlov
本文包含对硅锰矿表面声波的完整数值研究。结果是速度 (Vo,Vm)、光束转向 (/spl theta//sup 1/)、机电耦合因子 (K/sup 2/)、延迟时间的一阶和二阶温度导数 (TCD1、TCD2) 的综合等高线图和三维轨迹。确定了多模谐振器 (TCD1=0)、带通滤波器 (K/sup 2/=0.54%) 和传感器 (TCD1=32.82 ppm//spl deg/C) 的最佳切割。旋转的Z+25/spl deg/ cut在室温下具有大的K/sup 2/=0.26%并且TCD1=0。在 X+90/spl deg/ 的切口上传播的表面横波仅存在于金属化表面处。
The present paper contains the complete numerical investigation of surface acoustics waves in langasite. The results are comprehensive contour-map and three-dimensional loci for velocity (Vo,Vm), beam steering (/spl theta//sup 1/), electromechanical coupling factor (K/sup 2/), first and second temperature derivatives of delay times (TCD1, TCD2). Optimal cuts for multimode resonators (TCD1=0), for bandpass filter (K/sup 2/=0.54%) and for sensors (TCD1=32.82 ppm//spl deg/C) are determined. The rotated Z+25/spl deg/ cut has large K/sup 2/=0.26% and TCD1=0 at the room temperature. The surface transverse wave that propagates over this cut in X+90/spl deg/ exists only at the metalized surface.