基于MFC的测控系统，有意见采入信号，可显示波形，测算频率等参数，可绘制FFT波形图 可保存数据与图像 -MFC-based measurement and control system, the views of mining into the signal, you can display the waveform, measurement frequency and other parameters, can draw the FFT waveform can save data and

模态分析，用FFT对输入的激励信号提取振动的频率-Modal analysis using FFT excitation signal input to extract vibration frequency