高速磁浮列车传感器测试平台电路设计与实现

Circuit Design and Implementation of Sensor Test Platform for High Speed Maglev Train

高速磁浮列车相对位置传感器是列车精确测速定位的关键传感器之一,针对传感器研究过程中测试难度大,直接上车测试花费高,以及测试过程中存在一定安全隐患等问题开展研究.采用等效负载原理,基于FPGA芯片设计了一套能够对传感器进行离线检测的测试平台硬件电路,实现了对传感器的离线检测,保障了传感器在高速磁浮列车上工作可靠性的研究测试.

The relative position sensor of the high speed maglev train is one of the key sensors for accurate speed measurement and positioning of the train.The research is carried out to solve the problems such as the difficulty of testing the sensor,the high cost of testing on train,and the potential safety hazards in the testing process.Based on the principle of equivalent load and FPGA chip,a set of hardware circuit of the test platform which can detect the sensor off-line is designed,which realizes the off-line detection of the sensor and ensures the research and test of the working reliability of the sensor on the high speed maglev train.