高速磁浮列车相对位置传感器的设计  

Design of Relative Position Detection Sensor for High Speed Maglev Train

作　　者：孙玉绘[1] 李璐[1] 吴峻[1] 

机构地区：[1]国防科学技术大学机电工程与自动化学院,湖南长沙410073

出　　处：《自动化仪表》2008年第7期63-65,共3页Process Automation Instrumentation

基　　金：国家"八六三"计划资金项目(编号:2004AA505220)

摘　　要：根据直线同步电机长定子的齿槽结构特性,设计了一种新型的电感式相对位置传感器。介绍了检测线圈的结构和同步解调电路,并利用DSP的运算能力,在算法上实现磁极与长定子之间的高精度定位。最后,通过实验验证表明,该传感器工作稳定,满足牵引要求。In accordance with the cogging characteristic of the long stator of the linear synchronous motor, a new inductive sensing system of relative position is designed. For hardware, the structure of the detection coil and the synchronous demodulation circuit are introduced ; for software, the arithmetic method of using operating capability of DSP to make high precise positioning between magnetic pole and the long stator is presented. Through experiments it is proven that the sensing system is stable enough to meet drawing requirements.

关 键 词：磁浮列车 直线同步电机 位置检测 电感式传感器 后向差分法 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]