摘要
针对轮对踏面擦伤在列车行进中产生的振动特点,使用加速度传感器进行平轮检测,应用DSP采样技术进行信号采集,根据小波包变换的特点,将振动信号按任何的频率分辨率分解到不同的频段,提出平轮检测中使用小波包能量特征的概念。
According to the vibration produced by the scratch on the wheel tread during running on rails an acceleration sensor is used to detect the scratch. A DSP sampling technique is used for the data acquisition. A concept of wavelet packet energy feature is proposed for the detection of the scratch on the wheel tread.
出处
《自动化技术与应用》
2006年第5期59-61,70,共4页
Techniques of Automation and Applications
基金
上海市科委科技攻关计划项目
项目编号(03DZ12043)
关键词
踏面擦伤
振动信号
DSP
数据采集
小波包
scratch on the wheel tread
vibration signal
DSP
data acquisition
wavelet packet
