基于3个传感器的管道泄漏相关定位算法

Correlation Locating Algorithm Based on Three Sensors for Detecting a Leaking Spot

在弹性波形成及传播特性理论的基础上,分析了现有相关定位算法中的误差产生机制,针对管道泄漏引起的瑞雷波信号,提出了一种全新的基于3个传感器的相关定位算法,它避免了由于不同频率的瑞雷波在传播过程中因速度不同所引入的误差,减小了相关定位算法中确定距离时引入的误差,从而大大提高了相关定位算法的精度。

A new method is proposed for detecting and locating a leaking spot in a pressurized pipeline,based on the theory of elastic wave forming and propagation. The error sources of correlation locating algorithm based on two sensors are analyzed. Using three sensors instead of two sensors, the method can avoid velocity error and minish the distance error, so it has a higher precision.