| 一种新型多功能便携式听漏仪 |
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| 引用本文： | 崔建伟,翟东力.一种新型多功能便携式听漏仪[J].测控技术,2009,28(1). |
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| 作者姓名： | 崔建伟 翟东力 |
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| 作者单位： | 1. 东南大学仪器科学与工程学院,江苏南京,210096
2. 解放军理工大学,江苏南京,210007 |
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| 摘 要： | 听漏仪是供水管网检漏的重要仪器.介绍了一种基于ATMEG8535微处理器的多通道多功能便携式听漏仪.它由基于压电陶瓷的高精度拾音器、前级放大电路实现声电转换;由ATMEG8535微处理器控制多路带通滤波器、精密检波器、AD转换器实现频谱分析,并具有频谱模式、选频模式和混频模式3种功能.实践表明,所研制的听漏仪能有效地检测供水管线的漏损.
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| 关 键 词： | 漏水检测 带通滤波器 频谱分析 给水管网 |
A Novel Portable Multi-Function Leakage Listening Detector |
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| CUI Jian-wei,ZHAI Dong-li.A Novel Portable Multi-Function Leakage Listening Detector[J].Measurement & Control Technology,2009,28(1). |
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| Authors: | CUI Jian-wei ZHAI Dong-li |
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| Affiliation: | 1.School of Instrument Science and Engineering;Southeast University;Nanjing 210096;China;2.PLA University of Science & Technology;Nanjing 210007;China |
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| Abstract: | Leakage listening detector is an important instrument in finding water leakage point.A novel portable multi-function leakage listening detector based on Atmega8535 MCU is developed.It is based on the high-precision piezoelectric ceramic pickups and the preamplifier to achieve sound electricity conversion,a multi-channel band-pass filter,a precision zero detector and AD converter are used to achieve the spectrum analysis,which are controlled by the Atmega8535 MCU.The instrument has three function modes:spect... |
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| Keywords: | leakage detector bandpass filter spectrum analysis water supply system |
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