| 激光器工作噪声的表面声强测量及频谱分析 |
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| 引用本文： | 丁洪,何军,杨叔子,李家镕,李再光.激光器工作噪声的表面声强测量及频谱分析[J].华中科技大学学报(自然科学版),1987(2). |
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| 作者姓名： | 丁洪 何军 杨叔子 李家镕 李再光 |
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| 作者单位： | 华中工学院机械工程一系
(丁洪，何军，杨叔子)，华中工学院激光研究所
(李家镕)，华中工学院激光研究所(李再光) |
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| 摘 要： | 本文采用表面声强测量及其频谱分析方法对华中工学院激光研究所研制的5kW横流电激励连续CO_2激光器的噪声源进行识别.文中讨论了用自谱函数计算表面声强频谱的方法,并基于这种分析方法在IBM-PC上研制了一套分析所测噪声信号的通用软件.文中还讨论了声源近场辐射的有关频域特征.
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| 关 键 词： | 声强测量 噪声测量 频谱分析 激光器 轴流风机 噪声源识别 计算机绘图 |
Surface Intensity Measurement and Power Spectrum Analysis for Working Noise in Laser |
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| Ding Hong He Jun Yang Shuzi Li Jiarong Li Zaiguang.Surface Intensity Measurement and Power Spectrum Analysis for Working Noise in Laser[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,1987(2). |
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| Authors: | Ding Hong He Jun Yang Shuzi Li Jiarong Li Zaiguang |
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| Institution: | Ding Hong He Jun Yang Shuzi Li Jiarong Li Zaiguang |
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| Abstract: | Working noise sources are identified for a 5KW transverse flow CW CO2 Laser made by Laser Institute of Huazhong University of Science and Technology. The noise signal measured is analyzed with a common software developed and satisfactory results have been obtained. The computing method of replacing cross-spectrum by auto-spectrum in surf ace intensity measurement and spectral analysis is discussed. |
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| Keywords: | Sound intensity measurement Noise measurement Signal spectrum analysis Laser Axial fans Noise source recognition Computer graph |
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