Thermal Sensitivity of Elastic Coefficients of Langasite and Langatate

被引：7
|
作者：
Bourquin, Roger [1 ]
Dulmet, Bernard [1 ]
机构：
[1] Ecole Natl Super Mecan & Microtech, Frequency & Time Dept, F-25000 Besancon, France
来源：
IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL | 2009年 / 56卷 / 10期
关键词：
MATERIAL CONSTANTS; QUARTZ RESONATORS; PIEZOELECTRIC-CRYSTALS; THICKNESS MODES; TEMPERATURE;
D O I：
10.1109/TUFFC.2009.1291
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
Thermal coefficients of elastic constants of langasite and langatate crystals have been determined from frequency-temperature curves of contoured resonators operating in thickness modes. The effect of the trapping of the vibration has been taken into account to improve the accuracy. In a first step, the thermal sensitivities of stiffness coefficients in Lagrangian description are obtained. Thermal sensitivities of the usual elastic constants are further deduced. Predictions of thermally compensated cuts are given.
引用
收藏
页码：2079 / 2085
页数：7
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