首页 | 本学科首页   官方微博 | 高级检索  
     

油气管道TPD预警系统信号调理器的设计
引用本文:赖平,李健,张宇,靳世久.油气管道TPD预警系统信号调理器的设计[J].现代科学仪器,2009(3):25-28.
作者姓名:赖平  李健  张宇  靳世久
作者单位:天津大学精密测试技术与仪器国家重点实验室,天津,300072
摘    要:固定安装在油气管道表面的振动传感器,检测出的信号强度不一、极容易造成频率混叠及央带高频噪声。针对此情况,本文介绍了管道TPD(Third-party damage,TPD,管道第三方破坏)预警系统信号调理器的设计方法。为了保证在信号A/D转换前具有合适的较高价值的信号,对信号进行滤波、程控放大等前置调理。为了使信号满足信号采集系统的输入要求,对信号进行极性转换、限幅。信号调理器各项参数灵活可调。经实验证明,该信号调理器能够很好的实现信号调理。

关 键 词:振动传感器  滤波  程控放大  信号调理

Design of Signal Conditioner Based on Oil-gas Pipeline TPD Preventive Detecting System
Lai Ping,Li Jian,Zhang Yu,Jin Shi-jiu.Design of Signal Conditioner Based on Oil-gas Pipeline TPD Preventive Detecting System[J].Modern Scientific Instruments,2009(3):25-28.
Authors:Lai Ping  Li Jian  Zhang Yu  Jin Shi-jiu
Affiliation:(Key Laboratory of Precision Measuring Technology and Instrument, Tianjin, University, Tianjin, 300072)
Abstract:The output signal from vibration sensor, which was fixed on the pipeline surface, may be strong or weak, and it is easy to be mixed and carry high frequency noise. Focuses on this situation, this paper introduces a method to design a signal conditioner for TPD (Third party damage) preventive detection system. To make sure the signal is suitable for the data acquisition and processing system, this paper designed the filter circuit, the programmable amplifying circuit, the polarity transform circuit and the voltage amplitude limits circuit. It is flexible to change the parameter of this conditioning. Practical tests demonstrated the conditioner can realize signal conditioning well.
Keywords:Vibration sensor  Filter    Programmable amplify ~ Signal conditioning
本文献已被 维普 万方数据 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号