【摘要】 阐述希尔伯特变换及解调的基本原理,并据此对振动信号进行幅值及相位解调与分析,为旋转机械故障诊断提供早期和准确的故障信息。更多还原

【Abstract】 This paper describes the fundamental principle of Hilbert transformation.The amplitude modulation of vibration signals and the analysis and calculation of instantaneous phase are made according to the principles,providing early and ac currate information for breakdown diagnosis of rotating machinery.更多还原