Temperature characteristics of acoustic waves propagating in thin piezoelectric plates

被引：0

作者：

Kuznetsova, IE ^{[1
]}

Zaitsev, BD ^{[1
]}

Joshi, SG ^{[1
]}

机构：

[1] Marquette Univ, EECE Dept, Milwaukee, WI 53201 USA

来源：

2001 IEEE ULTRASONICS SYMPOSIUM PROCEEDINGS, VOLS 1 AND 2 | 2001年

关键词：

D O I：

暂无

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

The temperature coefficient of delay (TCD) for lowest order plate wave modes, A(0), S-0, and SH0, in LiNbO3 crystal has been calculated. In almost all cases investigated so far TCD is found to be a weak function of the normalized plate thickness h/lambda (h = plate thickness, lambda= acoustic wavelength). The only exception occurs for the A(0) mode in X-Z and Y-Z plates. It is found that plate waves can provide higher K-2 and lower TCD than is possible with SAWs. For example, for SH0 mode in X-Y+170degrees lithium niobate K-2=0.29 and TCD=54 ppm/C-0. Experimental measurements of TCD for SH0 waves in Y-X lithium niobate are found in good agreement with theory.

引用

页码：157 / 160

页数：4

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