Denoising Vibration Signals of Food Refrigerant Air Compressor Based on Wavelet Transform

Yan Jue Gong; Zhao Fu; Hui Yu Xiang; Li Zhang; Chun Ling Meng

doi:10.4028/www.scientific.net/KEM.439-440.1037

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 439-440Denoising Vibration Signals of Food Refrigerant...

Denoising Vibration Signals of Food Refrigerant Air Compressor Based on Wavelet Transform

Abstract:

On the basis of wavelet denoising and its better time-frequency characteristic, this paper presents an effective vibration signal denoising method for food refrigerant air compressor. The solution of eliminating strong noise is investigated with the combination of soft threshold and exponential lipschitza. The good denoising results show that the presented method is effective for improving the signal noise ratio and builds the good foundation for further extraction of the vibration signals.