光学学报, 2019, 39 (7): 0723004, 网络出版: 2019-07-16
磁光调制方位传递系统中螺线管近轴区磁场影响分析 下载: 918次
Effect Analysis of Solenoid Paraxial Magnetic Field in Azimuth Transfer System Based on Magneto-Optical Modulation
光学器件 磁光调制 方位传递 螺线管 近轴区磁场 optical devices magneto-optical modulation azimuth transmission solenoid paraxial magnetic field
摘要
磁光调制方位传递系统中,交变电流驱动内置磁光材料的螺线管磁场至关重要,直接关系到方位信息的传递精度。研究了交变电流驱动的螺线管内磁场对方位信息传递精度的影响。首先,利用麦克斯韦方程构建空心螺线管电磁场模型,分析驱动信号频率对磁场的影响;然后结合安培环路定律建立内置磁光材料的螺线管内部磁场模型;最后分析无松弛极化介质、松弛极化介质、驱动信号频率等对系统方位传递精度的影响。结果表明:驱动信号频率是影响系统方位传递精度的重要因素,且方位传递误差存在规律性;无松弛极化介质与松弛极化介质对系统方位传递精度的影响程度相当。该结果为研究磁光调制方位传递系统的方位传递精度与系统优化设计提供了参考。
Abstract
In the azimuth transfer system based on magneto-optical modulation, the magnetic field of a magneto-optic material based built-in solenoid driven by alternating current is very important and directly related to the azimuth transmission accuracy. This paper presents the effect of the solenoid paraxial magnetic field driven by alternating current on the azimuth transmission accuracy. First, an electromagnetic field model of a hollow solenoid is constructed using the Maxwell equation, and the influence of the driving signal frequency on the magnetic field is analyzed. Then, a magnetic field model of the built-in solenoid based on magneto-optic material is established according to the ampere loop law. Finally, the effects of a non-relaxation polarization medium, a relaxation polarization medium, and driving signal frequency on the azimuth transmission accuracy are analyzed. The results demonstrate that the driving signal frequency is an important factor affecting the system azimuth transmission accuracy, and the error of the azimuth transmission is regular. The effects of the non-relaxation and relaxation polarization media on the system azimuth transmission accuracy are similar. We expect that these results will provide a reference for further analysis on azimuth transmission accuracy and system optimization design.
杨志勇, 许友安, 蔡伟, 邢俊晖, 张志利. 磁光调制方位传递系统中螺线管近轴区磁场影响分析[J]. 光学学报, 2019, 39(7): 0723004. Zhiyong Yang, Youan Xu, Wei Cai, Junhui Xing, Zhili Zhang. Effect Analysis of Solenoid Paraxial Magnetic Field in Azimuth Transfer System Based on Magneto-Optical Modulation[J]. Acta Optica Sinica, 2019, 39(7): 0723004.