结合管道两端接收到负压力波的时间差，采用遗传算法搜索管道内的泄漏点。
Combining with the time difference value of the pressure wave getting to both ends of the pipeline, adopts the Genetic Arithmeticto search the leak site of the pipeline.
在一定长度的管线两端安装传感器 ，测量出由于漏油而产生的负压力波 ，根据负压力波传到两传感器的时间差计算出漏点的位置。
One of the key technologies of the method is to determine the time between suction waves going through the two measuring points of the pipeline.
采用了瞬态负压波法、流量输差法和压力流量综合法等多种泄漏诊断方法。
Several leak diagnosis methods such as instantaneous negative pressure wave, flow-lack, and hybrid diagnostic method were used.
本文基于负压波法检测管道泄漏的基本原理，提出了利用卡尔曼滤波算法对压力信号波形进行处理获得压力波形特征点的方法。
On the basis of suction wave method to detect pipeline leakage, the theses present that Kalman Filter can be used to get the featured inflection point of pressure wave.
压力曲线上的负压波是管道泄漏的征兆。
Negative pressure waves (NPWs) in pressure measurements can be an indication of pipeline leakage.
根据定义的负压波反射系数关系式和瞬态压力响应图，应用行波计算方法得到泄漏点的全部信息（泄漏流量和位置）。
The full information(leak flow and location) of leak point is obtained applying the analysis of transient pressure plot and formula of negative pressure reflectance.
当管道某处突然发生泄漏时，泄漏处将出现瞬态压力突降，形成一个负压波，并以一定的速度向管道上、下游两端传播。
When there is a leak point in the pipeline, the pressure is fallen and the negative pressure wave occurs at once.
当管道某处突然发生泄漏时，泄漏处将出现瞬态压力突降，形成一个负压波，并以一定的速度向管道上、下游两端传播。
When there is a leak point in the pipeline, the pressure is fallen and the negative pressure wave occurs at once.
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