干涉光谱仪中动镜的磁悬浮支撑磁力解耦方法研究  

Study on the Magnetic Decoupling Method of Magnetic Levitation Support for Interference Spectrometers

作　　者：丁超 许孟杰 DING Chao;XU Mengjie(709th Research Institute,China Shipbuilding Industry Corporation,Wuhan 430205;Hubei Science and Technology College,Wuhan 430000)

机构地区：[1]中国船舶重工集团公司第七○九研究所,武汉430205 [2]湖北科技职业学院,武汉430000

出　　处：《舰船电子工程》2019年第9期183-187,共5页Ship Electronic Engineering

摘　　要：干涉光谱仪通过动镜的不断运动可以改变光程差,并利用光程差实现定性与定量分析功能,故动镜运动的匀速性以及稳定性对光谱仪的精度和分辨率有着很大的影响。文章采用磁悬浮装置作为动镜的支撑系统,音圈电机作为动镜的驱动系统,并围绕控制动镜的两系统之间的耦合问题进行研究。文章设计了利用有限元软件ANSYS Maxwell对处在动镜系统中的磁场进行分析从而对支撑系统和驱动系统的电流进行解耦的方法,通过这种方法可以分别得到控制两个系统的电流。结果证明此方法得到的控制电流能够有效地控制动镜的运动情况,使动镜在运动过程中始终保持匀速性及稳定性。这种高精度与实时性控制的动镜系统满足了干涉光谱仪对动镜所需的要求。Interferometer spectrometer can change the optical path difference of lensby the constant motion of moving mirror,and optical path difference is used for qualitative and quantitative analysis of the function,so keeping uniform velocity and stability in the motion of the moving mirror has a great influence on accuracy and resolution of the spectrometer.In this paper,magnetic levitation device is used as the supporting system of the moving mirror,the motor of the voice coil is the driving system of the moving mirror and the coupling between the two systems of controling the moving mirror is studied.A method is supported to analyze the magnetic field in moving mirror system,and decouple the current in the supporting system and driving system.The results show that the control current obtained by this method can effectively control the motion of the moving mirror and keep the moving mirror in a constants peed and stably during the movement.The moving mirror system in the control of high accuracy and real-time satisfies the requirements of the interferometer.

关 键 词：动镜 磁悬浮 音圈电机 解耦 有限元分析 

分 类 号：TS183.7[轻工技术与工程—纺织材料与纺织品设计]