| 基于LabVIEW平台的锁相放大器在管道泄漏检测中的应用 |
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| 引用本文： | 杭利军,何存富,吴斌,蔡栋生. 基于LabVIEW平台的锁相放大器在管道泄漏检测中的应用[J]. 北京工业大学学报, 2008, 34(3): 241-245 |
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| 作者姓名： | 杭利军 何存富 吴斌 蔡栋生 |
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| 作者单位： | 北京工业大学机械工程与应用电子技术学院,北京,100022;北京工业大学机械工程与应用电子技术学院,北京,100022;北京工业大学机械工程与应用电子技术学院,北京,100022;北京工业大学机械工程与应用电子技术学院,北京,100022 |
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| 摘 要： | 为了提高干涉型光纤传感器的信号检测能力,开发了基于LabVIEW平台的锁相放大器,并用于Sagnac干涉型光纤管道泄漏检测系统。以解调干涉信号相位,分析了锁相放大器的信号解调原理及泄漏源定位方法,并在泄漏位置为5.0 km处进行了有无泄漏及泄漏定位的实验研究,结果表明.该锁相放大器可以解调出泄漏信号,并能实现泄漏点精确定位.
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| 关 键 词： | 光纤光学 光纤传感系统 锁相放大器 LabVIEW |
| 文章编号： | 0254-0037(2008)03-0241-04 |
| 修稿时间： | 2006-10-20 |
Application of Lock-in Amplifier Based on LabVIEW Platform for Leakage Detection |
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| HANG Li-jun,HE Cun-fu,WU Bin,CAI Dong-sheng. Application of Lock-in Amplifier Based on LabVIEW Platform for Leakage Detection[J]. Journal of Beijing Polytechnic University, 2008, 34(3): 241-245 |
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| Authors: | HANG Li-jun HE Cun-fu WU Bin CAI Dong-sheng |
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| Abstract: | A Lock-in Amplifier based on LabVIEW platform is developed to improve the signal detection level of optical fiber sensor and is applied to demodulate interference signal phase from optical fiber pipeline leakage detecting system based on Sagnac interferometer.The demodulation principle of Lock-in Amplifier and the method of leaking source location for the detection system are analyzed,and an experiment is designed to detect leaking source and locate leaking source when the leakage occurs at 5.0km.The results verify that the developed Lock-in Amplifier can demodulate leakage signal,and the leaking point can be located accurately. |
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| Keywords: | LabVIEW |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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