Rail flaw signal measurement and analysis for laser ultrasonic inspection

摘要：

　　This paper introduced an embedded data acquisition system for rail defect measurement and analysis in laser ultrasonic inspection area.Based ”ARM+FPGA” architecture, the system can achieve 100MSPS high speed real-time sampling.In order to get the rail defect types and location information, noise filtering and online analysis was carried out with the original data.According a series testing, it can detect rail crack depth greater than 0.05 mm, which provides a method for rail life evaluation;also it can detect the dangerous nucleus flaw,which is significant for safe operation of high-speed railway.

关键词： Laser ultrasonic rail defect measurement weak signal analysis

作者: Nan GangYang GuoRui Wang QiWu Song JiangFeng Sun JiHua

作者单位: NDT Laboratory, Laser Institute of Shandong Academy of Sciences ,28789JingShi, Ji Nan,China 250014

会议类型: 国内会议

会议名称: 光纤和光电子传感器及其安全应用国际会议(OFSIS2015)

会议地点: 济南

会议语种:英文

页码: 333-336

在线出版日期: 2015-01-20（万方平台首次上网日期，不代表论文的发表时间）