Results 31 to 40 of about 54,858 (331)

Miniature mobile sensor platforms for condition monitoring of structures [PDF]

, 2009
In this paper, a wireless, multisensor inspection system for nondestructive evaluation (NDE) of materials is described. The sensor configuration enables two inspection modes-magnetic (flux leakage and eddy current) and noncontact ultrasound.
Chan, C.C., Dobie, G.I.I., Friedrich, M., Galbraith, W., Hayward, G., Marshall, S., Pierce, S.G.   +6 more
core   +1 more source

Unsaturated Magnetic Flux Leakage Detection and Identification of Scratches in Oil and Gas Pipelines

Shiyou jixie, 2022
The online detection technology for oil and gas pipelines can effectively detect metal loss defects, but it has limited ability to distinguish corrosion and mechanical damage scratches.
Zhang Xuewei, Chen Jinzhong, Kang Xiaowei, Song Kai   +3 more
doaj  

Research on multiloop magnetic detection methodfor steel wire rope detection

矿业科学学报, 2018
In order to ensure the safe operation of steel wire rope,it is necessary to carry out periodical nondestructive testing.In the existing method of wire rope detection,electromagnetic detection based on magnetic flux leakage principle is recognized as the ...
Tian Jie, Zhou Junying, Wang Hongyao, Li Dongjun, Cheng Siqi, Han Xu, Wu Miao   +6 more
doaj   +1 more source

A Filtering Method for Suppressing the Lift-Off Interference in Magnetic Flux Leakage Detection of Rail Head Surface Defect

Applied Sciences, 2022
Magnetic flux leakage (MFL) detection is a common nondestructive detection method which is usually used to detect the surface defects of steel pipes and rails.
Yinliang Jia, Yichen Lu, Longhui Xiong, Yuhua Zhang, Ping Wang, Huangjian Zhou   +5 more
doaj   +1 more source

Investigation of and Components of the Magnetic Flux Leakage in Ferromagnetic Laminated Sample

Advances in Materials Science and Engineering, 2013
The magnetic flux leakage (MFL) technique is most commonly used for crack detection from iron bars, laminated sheets, and steel tubes of ferromagnetic nature.
Mustafa Göktepe
doaj   +1 more source

Serial MTJ-Based TMR Sensors in Bridge Configuration for Detection of Fractured Steel Bar in Magnetic Flux Leakage Testing

Sensors, 2021
Thanks to high sensitivity, excellent scalability, and low power consumption, magnetic tunnel junction (MTJ)-based tunnel magnetoresistance (TMR) sensors have been widely implemented in various industrial fields.
Zhenhu Jin, Muhamad Arif Ihsan Mohd Noor Sam, Mikihiko Oogane, Yasuo Ando   +3 more
doaj   +1 more source

Use of Magnetic Flux Techniques to Detect Wheel Tread Damage [PDF]

, 2016
Rail vehicle wheelsets are regularly maintained to ensure safe operation on track and prolong life. This is achieved through measurements to inspect roundness, profile shape, rim thickness and visual inspections of surface damage.
Bevan, Adam, Klecha, Stephanie
core   +1 more source

Search for the electric dipole moment of the electron with thorium monoxide [PDF]

, 2010
The electric dipole moment of the electron (eEDM) is a signature of CP-violating physics beyond the Standard Model. We describe an ongoing experiment to measure or set improved limits to the eEDM, using a cold beam of thorium monoxide (ThO) molecules ...
A C Vutha, B Spaun, Brown J M, D DeMille, D Patterson, E Petrik, Edvinsson G, G Gabrielse, Huber K P, J M Doyle, Khriplovich I B, Kozlov M G, M Parsons, Marian C M, N R Hutzler, Patterson D, Patterson D, Player M A, Stutz R, Vutha A DeMille D, W C Campbell, Y V Gurevich, Yao W M   +22 more
core   +4 more sources

Simulation Analysis of Magnetic Flux Leakage Detection Damage of Natural Gas Pipelines [PDF]

IOP Conference Series: Earth and Environmental Science, 2021
Abstract Pipeline damage can cause pipeline magnetic flux leakage. By analyzing the phenomenon of magnetic flux leakage, the integrity of the natural gas pipeline can be determined. In order to realize the detection of pipeline performance, this paper analyzes the principle of magnetic flux leakage detection technology, uses COMSOL ...
Bing Hu, Ning Zhang, Lu Wang, Penglong Lin, Lei Xu   +4 more
openaire   +1 more source

Effect of Magnetic Field on Corrosion Behavior of X52 Pipeline Steel in Simulated Soil Solution

International Journal of Electrochemical Science, 2021
Magnetic flux leakage detection is the primary method used for detecting metal damage in oil and gas pipelines. After a magnetic flux leakage test is used, a residual magnetic field remains in the steel pipeline for a long time.
Yong Yang, Yanlong Luo, Ming Sun, Junqiang Wang   +3 more
doaj   +1 more source