| 涡街流量信号中管道振动噪声的分析与处理 |
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| 引用本文： | 戴光瑜,李斌,宋磊. 涡街流量信号中管道振动噪声的分析与处理[J]. 上海大学学报(自然科学版), 2009, 15(5): 522-527 |
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| 作者姓名： | 戴光瑜 李斌 宋磊 |
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| 作者单位： | 上海大学,机电工程与自动化学院,上海,200072;上海大学,机电工程与自动化学院,上海,200072;上海大学,机电工程与自动化学院,上海,200072 |
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| 摘 要： | 研究了获取管道振动噪声干扰特征的方法,介绍了基于加速度传感器的管道振动信号的采集.结合涡街流量信号和管道振动信号的频谱分析结果,指出了管道振动信号频率与涡街流量信号的主要干扰分量频率直接相关.研究表明,可通过获取管道振动加速度信号特征,来间接获得涡街流量信号中最主要噪声的频率特征.基于这一研究结论,以管道振动信号的特征信息为参考输入,验证了通过自适应滤波对涡街流量信号中振动噪声的滤波方法.
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| 关 键 词： | 涡街信号 管道振动噪声 加速度传感器 自适应滤波 |
| 收稿时间： | 2008-07-01 |
Analysis and Processing of Pipeline Vibration Noise in Vortex Flow Signals |
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| DAI Guang-Yu,LI Bin,SONG Lei. Analysis and Processing of Pipeline Vibration Noise in Vortex Flow Signals[J]. Journal of Shanghai University(Natural Science), 2009, 15(5): 522-527 |
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| Authors: | DAI Guang-Yu LI Bin SONG Lei |
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| Affiliation: | School of Mechatronics Engineering and Automation, Shanghai University, Shanghai 200072, China |
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| Abstract: | A method of acquiring pipeline vibration noise is studied,and sampling of pipeline vibration signals using an acceleration sensor introduced.Based on frequency analysis of vortex signal and pipeline vibration signal,frequency of pipeline vibration signals is directly correlated with the frequency of main noise component.The frequency characteristics of main noise in vortex signal can be obtained indirectly by acquiring the pipeline vibration acceleration signal.Implementation of vortex signal filtering using a self-adaptation filter with the characteristics of pipeline vibration signal as input is verified. |
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| Keywords: | vortex signal pipeline vibration noise acceleration sensor self-adaptation filter |
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