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为了测试温度对石英晶体旋光性的影响,采用陶瓷平板型半导体制冷器件作为温控器,设计、建立了石英晶体旋光性温度效应的测试系统,对石英晶体旋光特性的温度效应进行了测试研究:在-10~60℃的温度范围内,从实验上测试了石英晶体的旋光角随温度的变化。实验结果表明:对于确定的单色光,随着温度的升高石英晶体的旋光率增大。根据测试结果,通过求解塞耳迈耶尔方程和四次拟合的方法,得出了塞耳迈耶尔方程的常数与温度的关系式,从而可以得出任意温度下不同波长对应的石英晶体的旋光率。
In order to test the influence of temperature on the optical activity of quartz crystal, a ceramic flat-type semiconductor refrigeration device was used as a thermostat. A test system of optical temperature effect of quartz crystal was set up. The temperature effect of optical characteristics of quartz crystal was tested. In the temperature range of -10 ~ 60 ℃, the change of optical rotation angle of quartz crystal with temperature was experimentally tested. Experimental results show that for a given monochromatic light, the optical rotation of the quartz crystal increases with increasing temperature. According to the test results, the relationship between the constant of the Searleier equation and the temperature is obtained by solving the Searleier equation and the quadratic fitting method, so that the quartz crystal corresponding to different wavelengths at any temperature can be obtained The rotation rate.