Study on Signal Processing Technology of Relative Position Detection Sensor for High Speed Maglev Train

摘要：

　　Relative position detection sensor is critical component for High Speed Maglev Train(HSMT)as they provide direction,speed,tooth-slot count and phase angle for traction system which drives maglev train.The traction system has higher requirements on the accuracy and stability of the phase angle signal.The demodulated wave signal directly affects the precision of the phase.In order to obtain higher accuracy of the demodulation signal,a demodulation approach based on an analog switch is proposed.The difference between early and present signal generating circuit is compared.Then the proposed demodulation method is analyzed mathematically.Moreover, the comparison between demodulation of the early sensor based on the analog multiplier and that based on the analog switch is implemented.A series of tests have been adopted to validate the performance of the proposed demodulation method and show that a more stable and accurate demodulation signal can be obtained.

关键词： relative position detection sensor signal processing analog switch

作者: Cuicui Huang Chunhui Dai Guibin Luo

作者单位: College of Intelligence Science National University of Defense Technology,Changsha,China

会议类型: 国际会议

会议名称: the 16th International Symposium on Magnetic Bearings (第十六届国际磁悬浮轴承大会) (ISMB6)

会议地点: 北京

会议语种:英文

页码: 1-5

在线出版日期: 2018-08-13（万方平台首次上网日期，不代表论文的发表时间）