【摘要】 本文探讨了碘酸锂晶体（α-LiIO₃,简称LI）全部电弹常数的测试方法。以压电板厚度振动模理论,推导出LI晶体独立电弹常数计算公式。对无压电耦合的弹性常数C₁₁^E和C₆₆^E,采用了声光同步测速法进行测量。最后,测量给出了LI晶体全部电弹常数和一些机电耦合系数共52个数据。更多还原

【Abstract】 The persent work discusses the method of measuring the all components of the electro-elastic tensor for the α-Li IO3 crystal （LI）. By means of theory of the thickness vibrational mode for piezoelectric plates, calculating formula of independent electro-elastic constants for LI had been developed. We measured the nonpiezoelectric-coupled elastic constants c₁1^E and c₆6^E by method of measuring velocity with acousto-optic synchronism, Finally, the 52 data of all components of the electro-elastic tensor and some of the electromechanical coupling factors for LI are given.更多还原