By high capacity high-speed switch, the series reactor is shorted during normal operation, eliminating the reactor leakage magnetic flux to eddy hot produced metal member around it.
利用大容量高速开关装置,在正常运行时将串联电抗器短接,消除电抗器漏磁通对其周围的金属产生的涡流发热;在发生短路情况下该装置快速断开,重新将电抗器投入,限制短路电流。
A measuring method combining main magnetic flux and magnetic flux leakage for approaching the residual wall thickness of the oil well tubing in-service was presented.
提出采用主磁通与漏磁通相结合的方法检测在用油管剩余壁厚的方法。
At the same time, leakage magnetic coefficient of commutating pole is calculated and analyzed by magnetic flux in itself and gap at rated load.
同时,利用额定负载时换向极身中的磁通与穿过气隙的总磁通,对换向极漏磁系数进行了计算与分析。
This article mainly discussed the magnetic Flux Leakage (MFL) methods which is suitable for ferromagnetic pipeline end.
本文讨论了适用于管道端头的漏磁检测方法。
The aim and application of diagnostically lossless compression and the data compression method for magnetic flux leakage (MFL) inspection of pipelines were introduced.
介绍检测无损压缩的目的、应用以及针对管道漏磁检测数据的一种检测无损压缩方法。
The on-line pipe flaw detector with magnetic leakage flux principle is introduced, providing details regarding the exciter circuit structure, magnetic sensors and signal processing.
介绍了基于漏磁探伤原理的钢管管缝在线检测装置,对装置的励磁磁路结构、磁敏感检测元件及其信号处理作了较详细的分析论述。
Based on the magnetic leakage flux technique, the principle of localized defect inspection and wall thickness measurement in oil well tubing has been researched.
文中研究了油管局部缺陷和壁厚减薄缺陷的漏磁场检测原理。
For the magnetic leakage flux system for steel tube flaw online inspection, normally multi-sensor technique is used to ensure the detecting speed and sensibility.
钢管在线漏磁检测中为保证检测的速度及灵敏度,一般采用多路传感器检测技术。
Magnetic flux leakage testing for some mini-defects or weak magnetic materials has been realized by this instrument.
采用该检测装置将使一些细微缺陷和弱磁材料的漏磁检测成为可能。
When magnetic flux leakage (MFL) means is employed in nondestructive evaluation of gun muzzle, MFL signal contains noises.
采用漏磁法对炮管进行无损检测时,漏磁信号中含有噪声。
We regard FPGA as control's core of new-type pipeline magnetic flux leakage detecting system, research and design control's core of pipeline magnetic flux leakage detecting system based on FPGA.
我们以FPGA作为新型管道漏磁检测器的系统控制核心,对基于FPGA的管道漏磁检测控制系统进行了研究与设计。
Application of magnetic flux leakage (MFL) testing to the detection of corrosion in atmospheric storage tank floor was studied.
探讨了漏磁检测在常压储罐罐底腐蚀缺陷检测中的应用。
Alternative magnetic leakage flux method was developed from the eddy current testing and traditional magnetic leakage flux testing, and it was advantageous for surface flaw recognition.
交变漏磁检测方法由于兼具涡流检测和传统漏磁检测的特点,对表面缺陷具有很高的识别率。
On the base of introducing the principle of the magnetic flux leakage (MFL) detection, the finite element method based on ANSYS used to simulate and analyze the MFL signal is presented.
在介绍漏磁检测原理的基础上,详细论述了利用有限元法分析缺陷信号的方法以及利用ANSYS对漏磁信号的仿真过程和仿真结果,并对结果进行分析。
The signal of magnetic flux leakage is calculated when damage occurs at the wall of the pipeline.
模拟损伤发生时的漏磁信号,与没有发生任何损伤时的检测信号进行对比。
The alternative magnetic flux leakage testing system based on A3515 Hall element was introduced, including its composition and operation.
介绍基于A3515霍尔元件的交变漏磁检测系统的设计,包括检测系统的组成和测试方法。
In order to improve the efficiency of magnetic flux leakage (MFL) testing for tank floors, the flaw location, test data description and visualization from anomalistic signals are studied.
针对储罐底板漏磁检测的实际需要,研究了根据异常数据点进行缺陷自动定位、定量描述及可视化的基本方法。
An online combined NDT technology is introduced, which composed of electromagnetic identification of materials, eddy current and magnetic flux leakage testing and ultrasonic measurements.
在此基础上介绍一种由电磁分钢、涡流探伤、漏磁探伤及超声测量组成的钢管在线组合检测技术及其应用结果。
There are varying noises in output signal obtained from magnetic flux leakage nondestructive testing of oil pipeline.
在采用漏磁法对输油管道进行无损检测过程中,信号会受到各种噪声的干扰。
The principle of magnetic flux leakage testing of oil and gas pipelines, and the operational principle and structure of the intelligent pipeline magnetic flux leakage tester developed are described.
介绍油气管道漏磁检测的基本原理以及在线检测装置的工作原理和结构。
This paper discusses the problem of the Magnetic flux leakage as to applied to atmospheric storage tank flat bottom tank floor corrosion inspection.
本文探讨了漏磁方法在常压储罐罐底腐蚀缺陷检测中的应用问题。
Third, inversion methods of signal processing are studied to identify defects from magnetic flux leakage testing data.
本文研究了基于反演技术的漏磁信号分析方法,采用反演技术实现缺陷轮廓参数的评估。
To keep leakage flux to be constant, the relation is analyzed between the air gap length and the non-magnetic material thickness with the rare earth magnet thickness under the air gap length variety.
在气隙长度发生变化时,为了保证漏磁大小不变,讨论了气隙与非导磁衬套厚度、磁钢厚度的关系。
According to the lately force magnetic theory, tiny Holl probe was used to practice magnetic flux leakage (MFL) testing on R3 middle-carbon steel.
根据最新力磁理论,使用微型霍尔探头对R3碳钢进行漏磁检测。
The characteristics of the magnetic flux leakage of different types of faults were analyzed and the testing elements of various directions were located to get the information of all faults.
分析了不同类型缺陷的漏磁场分布特征,布置不同方向的检测元件测取不同的缺陷信息;
A new Nondestructive testing method, alternative current magnetic flux leakage testing, was introduced to inspect the flaw in the drilling tool thread area.
采用交流磁场检测法对钻具螺纹进行了探伤。
Based on magnetic flux leakage, the experiment system has been designed for inspecting broken wires in logging cables.
针对测井电缆使用过程中的铠装断丝现象,基于漏磁检测法设计了测井电缆铠装断丝检测实验系统。
Magnetic flux leakage (MFL) nondestructive evaluation commonly used in the nondestructive evaluation of ferromagnetic material is an efficient method in inspection of oil pipelines in recent years.
漏磁无损检测普遍用于铁磁材料的无损检测中,是近年来输油管道检测中常用的一种有效方法。
Based on the magnetic flux leakage (MFL) technique, a magnetic flux leakage testing instrument for corrosion in the tank floor plate driven by electric motor is developed.
针对目前储罐底板漏磁检测中存在的问题,提出研制移动机器人代替人力驱动或人工辅助电力驱动方式进行储罐底板漏磁扫描检测。
Based on the magnetic flux leakage (MFL) technique, a magnetic flux leakage testing instrument for corrosion in the tank floor plate driven by electric motor is developed.
针对目前储罐底板漏磁检测中存在的问题,提出研制移动机器人代替人力驱动或人工辅助电力驱动方式进行储罐底板漏磁扫描检测。
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