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分析了基于法拉第效应的高精度光纤磁场传感器的理论基础和偏振结构 ,选择了灵敏度高、动态范围大的磁光晶体 ,并采用计算机模拟技术优化设计和评估性能 ,在 2GHz的频率范围内 ,实验结果与计算机模拟结果是一致的
The theoretical basis and polarization structure of high-precision fiber magnetic field sensor based on Faraday’s effect are analyzed. The magneto-optical crystal with high sensitivity and large dynamic range is selected. The computer simulation technology is used to optimize the design and evaluation performance. In the frequency range of 2GHz, The results are consistent with the results of computer simulation