CAJ | 학술논문

为了检测振幅为微米级的低频振动信号，提高测量精度，提出了基于虚拟仪器的微幅低频振动测量算法。以PCI-6251数据采集板卡为核心，运用光测法的同时通过LabVIEW图形化编程设计算法，对信号进行分析。按照此算法流程进行测量实验，实验结果表明该系统能有效地检测与分析微幅低频振动信号及其主频和振幅，测量精度达到了0.5%。
위료검측진폭위미미급적저빈진동신호，제고측량정도，제출료기우허의의기적미폭저빈진동측량산법。이PCI-6251수거채집판잡위핵심，운용광측법적동시통과LabVIEW도형화편정설계산법，대신호진행분석。안조차산법류정진행측량실험，실험결과표명해계통능유효지검측여분석미폭저빈진동신호급기주빈화진폭，측량정도체도료0.5%。
A detecting algorithm of micro-vibration signal based on LabVIEW was proposed in this paper to detect micron-level amplitude vibration with low frequency to improve accuracy.As the core of this design,PCI-6251 data acquisition card served as the role of acquiring signal of laser.Dedicated algorithm was designed via graphical programming in LabVIEW to analyze the signal.By giving the experiment of measurement in this process,the result indicates that the detection system can precisely sense the micro-vi-bration signal,and detect its frequency and amplitude as well.Furthermore,the accuracy can reach to 0.5%.