Research On Absolute Positioning Sensor Of High-Speed Maglev Vehicle

The control system of operation should know the Maglev vehicle’s location and speed when the Maglev vehicle was moving, So the system can control the Maglev vehicle. Location and speed detection system provide the information of location, speed and direction for high-speed maglev vehicle. The absolute position detection sensor is a important part of location and speed detection system. According to the features of the maglev vehicle which does not touch the track when it is moving, the principles of electromagnetic induction, a system of vehicle absolute position with position identification boards is proposed. The system have the benefit of precise detection, easy design, easy defend.The thesis’s main content include: First, introduce some different methods of absolute position detection and the function of the absolute position detection system. Then, introduce the absolute position detection system’s principle and characteristic which based on the principles of electromagnetic induction. And then based on the simulation of the sensor’s induction coil and the experiments ,we defined the sensor’s parameter. At last designed the circuit of analog and digital signal, gave the results and conclusion.