【摘要】 离心机主轴径向振动信号属微弱信号 ,混有较大的噪声和干扰。为了有效抑制噪声 ,提取有用信号 ,对自适应噪声对消原理进行了研究。提出了利用自适应噪声对消原理设计前置滤波器的方法 ,可以有效提取离心机主轴监测信号。通过仿真计算 ,表明这种方法是行之有效的更多还原

【Abstract】 The radial vibration signals of the centrifuge’s spindle are faint,which intermingle with strong noise and disturbance. In order to restrain the noise and take up the useful signal,a theory of adaptive noise counteract (ANC) is studied in this paper. The method is put forward to design pre Processing filter applying ANC theory. The results by simulation calculation show that the method is effective.更多还原