PROBING OF ELASTIC SURFACE WAVES IN PIEZOELECTRIC MEDIA
PROBING OF ELASTIC SURFACE WAVES IN PIEZOELECTRIC MEDIA
复制标题
压电介质中弹性表面波的探测
DOI：
10.1063/1.1653109
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发表时间：
1970
影响因子：
4
通讯作者：
G. Kino
中科院分区：
文献类型：
--
作者：
B. Richardson;G. Kino
数据表明，与声表面波在压电介质中由一个简单的点探头检测射频电位可以产生广泛的信息，这种波的传播特性。这种探头与107 MHz LiNbO3延迟线的传播表面机械接触，已用于测量声能的衍射图案、声束的扩展、由于换能器轴与晶体对称轴不对准而引起的插入损耗以及输出换能器附近声波的振幅和相位变化。
Data are presented which indicate that detection of the rf electrical potential associated with an acoustic surface wave in a piezoelectric medium by a simple point probe can yield extensive information about the propagation characteristics of such waves. Such a probe, in mechanical contact with the propagating surface of a 107‐MHz LiNbO3 delay line, has been used to measure the diffraction pattern of the acoustic energy, spreading of the acoustic beam, insertion loss due to misalignment of the transducer axis with the crystal symmetry axis, and the amplitude and phase variations of the acoustic wave near the output transducer.