根据改变窗长的相位差频谱校正理论,运用图形化编程语言LabVIEW开发了旋转机械振动信号频谱校正仪,并对模拟信号进行频谱校正,校正结果误差较小,可以满足实际应用的要求。 According to the phase difference spectrum correction theory of changing the window length, a graphical programming language named LabVIEW was used to develop the spectrum analyzer of the rotating machinery vibration signal, and the spectrum of the analog signal was corrected. The error of the calibration result is small, which can meet the practical application requirements.