基于PCI总线的虚拟仪器数据采集卡在摆式列车信号检测系统中的应用

Application of Data Acquisition Card of Virtual Instrument Based on PCI Bus in Tilting Train Mesurement

介绍了一种基于 PCI总线的虚拟仪器数据采集卡 ,采用 S5933接口芯片 ,配以专用低通数字滤波器 ,在摆式列车的信号检测系统中实现对列车运行加速度和轨道超高信号的检测及滤波处理。通过线路试验表明 ,该虚拟仪器数据采集卡具有一定的实用性和优越性。

A data acquisition card of virtual instrument based on PCI bus is introduced,which is applied in the testing system of tilting train.The interface chip of S5933 is the pivotal part of the card followed by a special low pass filter.The signal of the acceleration and the orbit excess of the running tilting train can be exactly tested and filtered in time.By the test of the true run,the practicality and superiority of the card is proved.