| 微机实现声强测量分析 |
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| 引用本文： | 马平,陈心昭,李登啸. 微机实现声强测量分析[J]. 合肥工业大学学报(自然科学版), 1990, 0(1) |
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| 作者姓名： | 马平 陈心昭 李登啸 |
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| 摘 要： | 本文以IBM-PC微机为核心,组成一套声强测量分析系统,用自编软件实现声强的测量分析。得到的结果不仅有声强谱和声功率谱(窄带和1/3倍频程,线性和A计权),而且还能给出三维声强图和等声强级图。利用该系统成功地进行了CA 6140车床和电机的噪声谱分析,用三维声强图和等声强级图直观地描述了车床前面的噪声辐射状况。
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| 关 键 词： | 声强测量 信号分析 互谱方法 |
MEASUREMENT AND ANALYSIS OF SOUND INTENSITY WITH MICROCOMPUTER |
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| Ma Ping Chen Xinzhao Li Dengxiao. MEASUREMENT AND ANALYSIS OF SOUND INTENSITY WITH MICROCOMPUTER[J]. Journal of Hefei University of Technology(Natural Science), 1990, 0(1) |
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| Authors: | Ma Ping Chen Xinzhao Li Dengxiao |
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| Affiliation: | Ma Ping Chen Xinzhao Li Dengxiao |
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| Abstract: | In this paper, a Sound intensity measuring system based on IBM-PC computer has been developed.The measurement and Analysis of sound intensity and sound power can be performed by using self-developed software with satisfactory accuracy. The results obtained include not only the Sound intensity and sound power spectra ( linear, A-weighted and 1/3 octave) ,but also the three-diment ional plots and the contour plots of sound intensity. The analysis of noise spectra of an electric motor and a lathe CA 6140 has been made by using this system, and the three-dimensional plots and the contour plots of sound intensity describe the noise distribution radiated by the lathe. |
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| Keywords: | sound intensity measurement signal analysis crossspectral method |
| 本文献已被 CNKI 等数据库收录！ |
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