Results 11 to 20 of about 1,874 (204)

Theory and Application of Magnetic Flux Leakage Pipeline Detection

Sensors, 2015
Magnetic flux leakage (MFL) detection is one of the most popular methods of pipeline inspection. It is a nondestructive testing technique which uses magnetic sensitive sensors to detect the magnetic leakage field of defects on both the internal and ...
Yan Shi, Chao Zhang, Rui Li, Maolin Cai, Guanwei Jia   +4 more
doaj   +3 more sources

Research on the Analytical Model of Improved Magnetic Flux Leakage Signal for the Local Stress Concentration Zone of Pipelines [PDF]

Sensors, 2022
Local stress concentrations pose a significant hazard to the safe operation of pipelines. However, the classical analytical model of the magnetic flux leakage (MFL) signal is still unable to effectively quantitatively analyze and accurately evaluate the ...
Lijian Yang, Fuyin Zheng, Ping Huang, Shi Bai, Yuming Su   +4 more
doaj   +2 more sources

Pulsed magnetic flux leakage techniques for crack detection and characterisation [PDF]

Sensors and Actuators A: Physical, 2006
Magnetic flux leakage (MFL) techniques have been widely used for non-intrusively inspecting steel installations by applying magnetization. In the situations where defects may take place on the near and far surfaces of the structure under inspection ...
Sophian, Ali, Tian, Gui Yun, Zairi, Sofiane   +2 more
core   +2 more sources

Optimization design of magnetic flux circuit for mine wire rope damage detection

Gong-kuang zidonghua, 2022
The magnetic flux leakage(MFL) detection method is the most widely used method for detecting the mine wire rope damage, and there is no research on the influence of magnetic noise signal in magnetic flux circuit on the MFL detection signal of wire rope ...
TIAN Jie, TIAN Zhuang, GUO Hongfei, LIU Ningzhe, MA Jianwu   +4 more
doaj   +1 more source

Development of magnetic flux leakage device as a non-destructive method for structural reinforcement detection

Materiales de Construccion, 2022
Non-destructive measurement techniques are used to identify engineering construction components without causing any negative effects on their use as construction components in the future.
Ö. Bektaş, Y.C. Kurban, B. Özboylan   +2 more
doaj   +1 more source

Plug Valve Surface Defects Identification through Nondestructive Testing and Fuzzy Deep‐Learning Algorithm for Metal Porosity and Surface Evaluation

Journal of Engineering, Volume 2023, Issue 1, 2023., 2023
This paper addresses the detection and identification of flaws in Plug valves. The Plug valve thermal image is acquired using a Fluke thermal camera [TiS20]. Thermal images of the Plug valve are used for the identification of flaws such as Crack, Porosity, Corrosion, and Internal defects. The thermal images detect the surface flaws and never subsurface
V. Jacintha, S. Karthikeyan, P. Sivaprakasam, Karthikeyan Sathasivam   +3 more
wiley   +1 more source

[Retracted] Nondestructive Testing of Coal Mine Wire Ropes Based on Magnetic Sensors

International Transactions on Electrical Energy Systems, Volume 2022, Issue 1, 2022., 2022
Safety is the first priority in production. The situation is complex in the deep underground of coal mines, and safety accidents often occur. Wire rope is a kind of safety device. With the help of wire rope, the safety of miners can be guaranteed to a certain extent. It is a very important tool for mining production.
Youliang Yuan, Kaihui Wang, Baoyuan Chen, Yu Qiu, Raghavan Dhanasekaran   +4 more
wiley   +1 more source

Defect Width Assessment Based on the Near-Field Magnetic Flux Leakage Method

Sensors, 2021
Magnetic flux leakage (MFL) testing has been widely used as a non-destructive testing method for various materials. However, it is difficult to separate the influences of the defect geometrical parameters such as depth, width, and length on the received ...
Erlong Li, Yiming Chen, Xiaotian Chen, Jianbo Wu   +3 more
doaj   +1 more source

Investigating the Influence of Design Frequency on the Ultrasonic Signal of PFSV‐EMATs

Journal of Sensors, Volume 2022, Issue 1, 2022., 2022
The point‐focusing shear vertical wave electromagnetic acoustic transducer (PFSV‐EMAT) with a concentric meander line (CML) coil has been developed to detect and size micro defection concealed within a certain depth of materials. It is proved to be sensitive to the design frequency, which is associated with the spacing of CML coil.
Xiaojuan Jia, Min Liu, Jingjun Zhang, Qi Ouyang, Agustin Herrera-May   +4 more
wiley   +1 more source

Improved Method for Distributed Parameter Model of Solenoid Valve Based on Kriging Basis Function Predictive Identification Program

Actuators, 2021
In this paper, a method for the improvement of the calculation accuracy of the distributed parameter model (DPM) of electromagnetic devices is proposed based on the kriging basis function predictive identification program (PIP).
Jiaxin You, Kun Zhang, Huimin Liang, Xiangdong Feng, Yonggang Ruan   +4 more
doaj   +1 more source