OPTICAL MEASUREMENT OF PIEZOELECTRIC CONSTANTS USING A HETERODYNE INTERFEROMETRIC PROBE

被引：0
|
作者：
ROYER, D [1 ]
KMETIK, V [1 ]
机构：
[1] FAC SCI NUCL & INGN PHYS PRAGUE, DEPT ELECTR PHYS, CS-11000 PRAGUE 1, CZECHOSLOVAKIA
来源：
JOURNAL DE PHYSIQUE IV | 1992年 / 2卷 / C1期
关键词：
D O I：
10.1051/jp4:19921171
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Piezoelectric constants of crystals (SiO2, LiNbO3) and polymers (PVDF) have been determined using an optical heterodyne interferometer to measure the strain. With this set-up, the minimum detectable displacement is 10(-3) angstrom and the accuracy is 5%. The effect of the bonding to the support has been analysed and experimentally checked. The well established value of modulus d11 of quartz (2.31 x 10(-12) m/V) has been confirmed. For LiNbO3 the controversial value of d33 was determined as 9.5 x 10(-12) m/V. For PVDF, the method leads to a constant d33 (13.6 x 10(-12) m/V) more than two times smaller than the figure given by the manufacturer.
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页码：785 / 788
页数：4
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