机车轴承故障诊断中振动信号采集的研究  

Research of collection of vibration signal in fault diagnosis of locomotive bearing

作　　者：黎丹[1] 陈特放[1] 

机构地区：[1]中南大学信息科学与工程学院,湖南长沙410083

出　　处：《国外电子元器件》2007年第1期35-39,共5页International Electronic Elements

基　　金：铁道部科技发展计划项目(2001J024);湖南省机械健康维护重点实验室开放基金项目(KFJJ0301)

摘　　要：介绍了机车轴承故障诊断中振动信号采集的硬件实现。先通过压电式加速度传感器对振动信号进行拾取,然后经过电荷放大器、抗混滤波器等系列电路对拾取的微弱信号进行处理,最后进入A/D转换电路得到微机可以识别的数字信号,从而实现振动信号的采集。The hardware of collection technique of vibration signal in fault diagnosis of locomotive bearing is introduced.At first,vibration signals are picked up via piezoelectric acceleration sensor, and then the weak signals picked up are processed,using the charge amplifier and a series of anti-aliasing filter circuit. These signals are converted to digital signal by AdD converter which can be processed by computer, so as to finish the collection of vibration signal.

关 键 词：机车轴承 故障诊断 抗混滤波器 MAX297 AD574A 

分 类 号：TP206.3[自动化与计算机技术—检测技术与自动化装置]