计算机工程与应用
計算機工程與應用
계산궤공정여응용
COMPUTER ENGINEERING AND APPLICATIONS
2010年
9期
16-18,70
,共4页
故障诊断%DAQmx%同步采集%等角度采样%振动分析
故障診斷%DAQmx%同步採集%等角度採樣%振動分析
고장진단%DAQmx%동보채집%등각도채양%진동분석
fault diagnosis%DAQmx%synchronous sampling%uniform angular sampling%vibration analysis
根据汽车变速箱性能检测系统的实时性高的需要,提出了一种基于NI公司的DAQmx的多通道数据同步采集方法,实现了在变速运动下转速信号和振动信号的精确等角度同步采集.该方法以转速信号为主控,同以往的以振动信号做主控相比,可以更精确地按指定数据量完成采集任务,减少后期的数据处理工作,提高工作效率.该方法基于NI公司的DAQmx驱动,用VB语言实现,具有更好的兼容性和可扩展性.
根據汽車變速箱性能檢測繫統的實時性高的需要,提齣瞭一種基于NI公司的DAQmx的多通道數據同步採集方法,實現瞭在變速運動下轉速信號和振動信號的精確等角度同步採集.該方法以轉速信號為主控,同以往的以振動信號做主控相比,可以更精確地按指定數據量完成採集任務,減少後期的數據處理工作,提高工作效率.該方法基于NI公司的DAQmx驅動,用VB語言實現,具有更好的兼容性和可擴展性.
근거기차변속상성능검측계통적실시성고적수요,제출료일충기우NI공사적DAQmx적다통도수거동보채집방법,실현료재변속운동하전속신호화진동신호적정학등각도동보채집.해방법이전속신호위주공,동이왕적이진동신호주주공상비,가이경정학지안지정수거량완성채집임무,감소후기적수거처리공작,제고공작효솔.해방법기우NI공사적DAQmx구동,용VB어언실현,구유경호적겸용성화가확전성.
According to the requirements of the transmission fault diagnosis system's real-time performance,an acquisition method that synchronizes the rotational speed signal and the vibration signal is proposed.lt realizes uniform angular sampling when the shaft moves in variable motion.Different from existing methods,the method makes the rotational speed signal to be the master during the process of data acquisition for it can reduce the work of data processing and improve efficiency.The method is based on the DAQmx driver of National Instrument corporation(NI) and is implemented by VB language.
