The overall constitution and function of oil pipeline leak detection system are studied.
讨论了输油管道泄漏检测系统的总体构成及功能。
Pipeline leak detection based on the signal features of piezoelectric sensor is proposed.
本文提出基于压电传感器信号特征的管道泄漏检测方法。
A model was constructed in laboratory to simulate the acoustic emission pipeline leak detection.
在实验室条件下，建立了压力管道泄漏的声发射检测模型。
Oil pipeline leak detection and location is an important topic for reducing oil loss and environment protection.
输油管线的泄漏故障诊断对于减少经济损失和环境污染有着很大的意义。
Therefore, crude oil pipeline leak detection technique with Inverter system has become an important research topic.
因此，变频调速原油管道泄漏检测技术成为重要的研究课题。
The application concerning water pipeline leak detection and location verifies the validity of this measuring system.
最后通过对自来水管线泄漏的实际测量验证了该系统的有效性。
Demand for high precision, high stability oil pipeline leak detection devices is increasing in National major oil fields.
全国各大油田对高精度、高稳定性输油管道泄漏检测器的需求也日益增加。
On the basis of detailed analysis of the pipeline fluid dynamics, this paper presents a method of pipeline leak detection and location based on stable model;
本文在详细分析管道流体动力学特性的基础上，提出了一种基于稳态模型的管道泄漏检测与定位方法；
With more and more use of Inverter in oil pipeline transportation, pipeline transportation becomes non-stationary and pipeline leak detection goes more difficult.
实际中原油管道越来越多采用变频输送，这样很容易造成管道的非平稳运输，增加了管道泄漏检测的难度。
Specializing in underground pipeline locator, pipeline leak detection devices and a variety of gas detection and monitoring instrumentation products and technical services.
专业从事地下管线定位仪、管道泄漏检测仪及各种气体检测、监测仪器产品生产和技术服务。
Basing on the laws, the paper applies the pressure-flow distinguishing method into the pipeline leak detection, and through using the method of detecting the time of pressure fall.
结合此规律，将压力流量联合判别法应用于管道泄漏检测中，并通过捕捉压力波的突降时刻进行管道泄漏点定位。
Pipeline leak detection location system is a typical device for pipeline maintenance, which can efficiently reduce the resource waste and the environment pollution caused by pipeline leak.
管道泄漏检测定位系统是目前管道泄漏检测中的一种典型装置，能有效控制管道泄漏引起的资源浪费和环境污染。
A leak detection and positioning system of oil pipeline based on dynamic pressure transmitter is designed, and the system composition and testing principle are specified.
设计了一套基于动态压力变送器的输油管道泄漏检测与定位系统，阐述了其系统组成和检测原理。
The economical pipeline leak detector was designed and developed after the analysis of the leak detection technology, the leak detection equipment status quo and development trend.
本文在对泄漏检测技术、检测设备现状和发展趋势进行分析的基础上，设计和开发了经济实用的管道泄漏检测器。
With the problem of noise disturbance in leak detection and location of pipeline, a signal process method based on empirical mode decomposition (EMD) and cross-correlation was presented.
针对长输管道泄漏检测与定位中噪声干扰问题，提出了一种基于EMD分解和相关分析的管道泄漏检测与定位方法。
And at the same time we applied this method to the leak detection of gas pipeline. The simulation is presented to illustrate the validity and feasibility of the method.
同时针对天然气管道泄漏检测这一具体的工程实例，采用该方法对管道发生微小泄漏时所产生的缓变信号进行了分析，仿真实验验证了该方法的有效性和适用性。
Based on transient model method and acoustic leak detection method, a complete set of high-pressure gas pipeline leak experimental device is designed.
设计了一套完整的基于瞬态模型法和声波泄漏检测法的高压输气管线泄漏试验装置。
To solve the leak detection and location problem in pipeline flux, we built neural network model based on the difference of leak wave and normal signal.
为了解决目前管道流量泄漏监测和定位问题，根据管道泄漏应力波和正常信号的区别，建立神经网络模型。
By actual test data, the leak detection system can rule out the stations affected by changes in working conditions can be accurately presented on the pipeline leak alarm and location information.
通过数据测试，该系统能够有效的排除站内工况调整影响，并能够准确的对管道泄漏给出报警和定位信息。
A novel leak detection and location method for oil pipeline network is proposed.
提出了一种新颖的基于模式识别的输油管网泄漏检测与定位的方法。
A novel leak detection and location method for oil pipeline network is proposed.
提出了一种新颖的基于模式识别的输油管网泄漏检测与定位的方法。
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