Abstract：Noise is the biggest obstacle that makes the incipient fault diagnosis results uncorrected.Using the wavelet transform,the noise of water pump is decomposed in many scales.And then be fileted according to the correlations of wavelet coefficients in close layer.By selecting the process parameters adaptively,WTDCF can de-noise signal efficiently.More important,the faint component in the signal will become stronger compared with the noise component.According to the analysis of the fault signal in water pump,results show that WTDCF method is effective for water pump incipient fault diagnosis.
胡赤兵；张玲；汪小云. 水泵微弱故障信号的检测[J]. 排灌机械工程学报, 2006, 24(3): 24-26.
HU Chi-bing, ZAHNG Ling, WANG Xiao-yun. Measurement of faint vibration signal in water pump. Journal of Drainage and Irrigation Machinery Engin, 2006, 24(3): 24-26.
