利用小波变换在汽车变速齿轮点蚀故障诊断的应用-Wavelet transform automotive transmission gears pitting fault diagnosis in the application

小波分析变换在轴承故障诊断中的应用，利用小波变换检测是否有轴承外环故障。-Wavelet analysis Transform in bearing fault diagnosis using wavelet transform to detect whether there is a bearing outer ring failure.