悬浮间隙传感器的电磁兼容设计  

Design of Electromagnetic Compatibility for Levitation Gap Sensor

作　　者：吴峻[1] 李中秀[1] 

机构地区：[1]国防科技大学机电工程与自动化学院,湖南长沙410073

出　　处：《计算机测量与控制》2010年第4期933-934,937,共3页Computer Measurement &Control

基　　金：国家"863"计划项目(2004AA505220)

摘　　要：高速磁浮列车悬浮间隙传感器所处的环境电磁场较复杂,各种电磁场通过传导或者辐射有可能干扰传感器;在讨论电快速瞬变抗扰度试验、浪涌抗扰度试验、静电放电抗扰度试验和射频场感应传导干扰的抗扰度试验等电磁兼容试验基础上,在传感器的电源线环节采取了电涌吸收器件加多级滤波的方案来抑制电磁干扰,在信号端口环节采取了暂态电压吸收器和光电隔离的方案来抑制电磁干扰,在检测线圈环节采取了8字型的线圈结构来抑制共模形式的电磁干扰;以上措施在试验中已经得到较好地应用。The electromagnetic environment is complicated where the levitation gap sensors locate in the high speed maglev train. There are many kinds of magnetic fields which may disturb the levitation gap sensor by conduction or radiation. Based on the analysis of electromagnetic compatibility tests including immunity test for electrical fast transient/burst, immunity test for surge, immunity test for electrostatic discharge and immunity test for conducted interference, the paper has proposed a scheme with transient surge depression and multi-filter in the power line, a surge depression and electro-optical devices in the signal port and a 8 profile coils to decrease the common mode electromagnetic disturbance. These methods have been well applied for electromagnetic compatibility in the experiments.

关 键 词：电磁兼容 悬浮间隙传感器 高速磁浮列车 

分 类 号：TP212.13[自动化与计算机技术—检测技术与自动化装置]