Invention Grant
- Patent Title: Method and device for measuring the pole position angle of a magnetic levitation vehicle of a magnetic levitation system
- Patent Title (中): 用于测量磁悬浮系统的磁悬浮车辆的极位置角度的方法和装置
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Application No.: US12515542Application Date: 2007-11-15
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Publication No.: US07986138B2Publication Date: 2011-07-26
- Inventor: Robert Schmid
- Applicant: Robert Schmid
- Applicant Address: DE Munich
- Assignee: Siemens Aktiengesellschaft
- Current Assignee: Siemens Aktiengesellschaft
- Current Assignee Address: DE Munich
- Agent Laurence A. Greenberg; Werner H. Stemer; Ralph E. Locher
- Priority: DE102006057062 20061128
- International Application: PCT/EP2007/062371 WO 20071115
- International Announcement: WO2008/065004 WO 20080605
- Main IPC: G01B7/30
- IPC: G01B7/30

Abstract:
A method for measuring the pole position angle between the magnetic field of a track-side stator of a magnetic levitation train track and the magnetic reference axis of a magnetic levitation vehicle located on the track. When the levitation magnet of the magnetic levitation vehicle is energized, a direction component of the magnetic field of the stator, which component is predefined by a preferred measurement direction of the magnetic field sensors, is measured using a pair of magnetic field sensors, and the pole position angle is determined using the measured values of the two magnetic field sensors. The preferred measurement direction is set in such a way that at least one of the two magnetic field sensors has a minimum measurement sensitivity for the magnetic field of the levitation magnet.
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