| 相关分析法管道漏点定位系统的试验研究 |
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| 引用本文： | 张建利,佟凯,马放.相关分析法管道漏点定位系统的试验研究[J].哈尔滨工业大学学报,2007,39(6):875-878. |
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| 作者姓名： | 张建利 佟凯 马放 |
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| 作者单位： | 1. 哈尔滨工业大学,环保科技股份公司博士后科研工作站,哈尔滨,150090;哈尔滨工业大学,市政环境工程学院,哈尔滨,150090
2. 哈尔滨工业大学,市政环境工程学院,哈尔滨,150090 |
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| 基金项目： | 国家自然科学基金资助项目(50178023) |
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| 摘 要： | 针对管道漏点定位问题,研制出了一套基于快速傅立叶变换的相关分析法管道泄漏点定位系统.采用水声传感器捕获泄漏点水声信号;并对信号进行放大、带通滤波处理;应用LabVIEW语言进行计算机编程以实现水声信号的数据采集;引入了离散快速傅立叶算法,求解水声信号的互相关函数;进行了多种泄漏点定位检测试验;对试验结果进行了比较分析;结果表明了该系统应用于实际的可行性.
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| 关 键 词： | 漏点定位 快速傅立叶变换 水声信号 相关分析 |
| 文章编号： | 0367-6234（2007）06-0875-04 |
| 修稿时间： | 2006-02-10 |
Experimental research on correlation analysis in pipe leakage point location system |
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| ZHANG Jian-li,TONG Kai,MA Fang.Experimental research on correlation analysis in pipe leakage point location system[J].Journal of Harbin Institute of Technology,2007,39(6):875-878. |
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| Authors: | ZHANG Jian-li TONG Kai MA Fang |
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| Affiliation: | 1.Postdoctoral Station of Environmental Technology Co.Ltd;Harbin Institute of Technology;Harbin 150090;China;2.School of Municipal and Environmental Engineering;China |
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| Abstract: | A leakage point positioning systerm is developed,which is based on correlation analysis of fast Fourier transformation for locationing the leakage in the pipe.The submarine sound signal of the leakage point is captured by the sensor of submarine sound;the signal is magnified and disposed by band-pass filter;programming in LabVIEW to log the data of the submarine sound signal;discrete FFT algorithm is introduced in order to get the accurate crosscorrelation function of submarine sound signal quickly;multi-le... |
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| Keywords: | leakage point location fast Fourier transformation submarine sound signal correlation analysis |
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