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標題Title: An Enveloping Function for Signal Processing of Mechanical Vibration - Frequency Analysis
作者Authors: 沈毓泰,Chieh-Hsing..等
上傳單位Department: 機械工程系
上傳時間Date: 2009-11-12
上傳者Author: 沈毓泰
審核單位Department: 機械工程系
審核老師Teacher: 沈毓泰
檔案類型Categories: 研討會報告Seminar Report
關鍵詞Keyword: Enveloping Function, Demodulation, Hilbert Transform
摘要Abstract: In this paper, an enveloping function for Hilbert transform is proposed to apply in the real-time vibration signal demodulation. Three parameters, the scaling factor, center frequency and passband width, are designated to achieve the satisfactory properties of fast waveform convergence, constant passband gain and little phase distortion. Thus, a finite waveform interval of the proposed enveloping function could be possibly applied in the vibration signal demodulation. From theoretical analysis and experimental studies, it is shown that the proposed enveloping function could be effectively applied in the real-time vibration signal demodulation for a roller bearing system.

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2009_11_bbf3a57a.ppt 344Kb ppt 774 134
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