【摘要】 传统电场传感器中的金属设备会对被测电场产生影响,导致测量精度下降,为此设计出光学电场传感器。本文在有限元分析软件Comsol中使用晶体微元建立了Pockels效应的模型,从微观的角度阐述Pockels效应,得到了仿真结果,并搭建了实验平台,实验晶体在频率50Hz、电场强度0~8×10~5V/m条件下进行测试,验证了仿真结果,输出与输入有良好的线性关系。本文所进行的研究可为以后光学传感技术的发展提供基础。更多还原

【Abstract】 Design the optical field sensor to solve the problem that the traditional electric field sensor in the metal equipment will have an impact on the measured electric field, resulting in decreased measurement accuracy. A model about Pockels effects using crystal micro elements is built with the finite element analysis software Comsol. Describe the mechanisms of Pockels effects from a microscopic point of view and verify the simulation results, and then test the experimental crystal at a frequency of 50 Hz and a electric field strength of 0~8×10~5 V/m on the laboratory platform, verifying the simulation results that the outputs and inputs have a good linear relationship. This research work can provide a solid foundation for the further development of optical sensing technology.更多还原