LITHIUM TETRABORATE TRANSDUCERS

被引：7
作者：
BALLATO, A [1 ]
KOSINSKI, J [1 ]
LUKASZEK, T [1 ]
机构：
[1] USA,RES & DEV LABS,FT MONMOUTH,NJ 07703
来源：
IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL | 1991年 / 38卷 / 01期
关键词：
D O I：
10.1109/58.67836
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
Lithium tetraborate is a tetragonal material of considerable promise for frequency control and signal processing applications. It exhibits piezoelectric coupling values that fall between those of lithium niobate and quartz, but possesses orientations for which the temperature coefficient of frequency and delay time is zero for bulk and surface acoustic waves. The properties of two doubly rotated bulk wave resonator orientations having both first- and second-order temperature coefficients equal to zero are discussed. These are suitable for shear and compressional wave transducers in applications where very low temperature sensitivity is required simultaneously with moderately strong piezocoupling coefficients.
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页码：62 / 66
页数：5
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