Results 261 to 270 of about 54,858 (331)
Some of the next articles are maybe not open access.
IEEE Transactions on Instrumentation and Measurement, 2023
Defect inversion estimates the defect size quantitatively, which is a significant process in the magnetic flux leakage (MFL) detection system. The actual measured defects are irregular due to the complex environment, which leads to signal deformation ...
Lin Jiang +4 more
semanticscholar +1 more source
Defect inversion estimates the defect size quantitatively, which is a significant process in the magnetic flux leakage (MFL) detection system. The actual measured defects are irregular due to the complex environment, which leads to signal deformation ...
Lin Jiang +4 more
semanticscholar +1 more source
Detectability of Rail Defects by Magnetic Flux Leakage Method
Russian Journal of Nondestructive Testing, 2019The ability of the Magnetic Flux Leakage (MFL) method to detect flaws in railway rails in two different ways has been studied. First, a three-dimensional computer simulation of the leakage of magnetic flux around a transverse crack in the rail head was carried out to determine the relationship between the main characteristics (size and depth) of the ...
A. G. Antipov, A. A. Markov
openaire +1 more source
In-pipe Detection System Based on Magnetic Flux Leakage and Eddy Current Detection
2020 International Conference on Sensing, Measurement & Data Analytics in the era of Artificial Intelligence (ICSMD), 2020Pipeline plays an important role in the transportation of oil and gas. In-pipe detection technology is currently widely used at home and abroad. It is of great significance to develop in-pipe detection equipment with independent intellectual property rights and suitable for the actual situation of oil and gas pipelines in China.
Xiaolin Liu +5 more
openaire +1 more source
Measurement science and technology, 2023
Thick-walled steel pipes, which bear high internal pressure, are widely applied in nuclear power and pressure pipelines. If there are defects in the inner wall, they are easy to expand and cause accidents.
Rongbiao Wang +5 more
semanticscholar +1 more source
Thick-walled steel pipes, which bear high internal pressure, are widely applied in nuclear power and pressure pipelines. If there are defects in the inner wall, they are easy to expand and cause accidents.
Rongbiao Wang +5 more
semanticscholar +1 more source
Detection of high stress concentration zone using magnetic flux leakage method
International Journal of Structural Integrity, 2020PurposeA tower crane mainly ensures the success or efficiency of building construction. Fatigue crack analysis is important for tower crane components to prevent any accidents to workers in construction sites caused by component failure and to ease the maintenance or replacement of failed components. This work aimed to characterise the damage of failed
Syed Muhamad Firdaus +3 more
openaire +1 more source
Magnetic Flux Leakage techniques for detecting corrosion of pipes
2022Oil and gas pipelines are subjected to corrosion due to harsh environmental conditions as in refinery and thermal power plants. Interesting problems such as internal and external corrosion, emerging from the increasing demand for pipeline protection have prompted this study.
openaire +1 more source
Rail Track Defect Detection using Enhanced Method of Magnetic Flux Leakage Signal
2021 International Conference on Design Innovations for 3Cs Compute Communicate Control (ICDI3C), 2021India procures a major position in the list of quickly developing countries with notable and appreciable advancements in the field of railway network. Derailments contribute to several railway accidents that have been caused. This is mainly due to the cracks in the railway track. These cracks usually go unobserved due to irregular maintenance.
Shruthi N +4 more
openaire +1 more source
Review of Scientific Instruments, 2019
We proposed a lightweight magnetizer toward the realization of a portable circumferential magnetic flux leakage (MFL) inspection tool for the detection of longitudinal defects with a linear motion between pipes and the inspection tool. The proposed magnetizer consists of four permanent magnetic poles constructing a configuration in which the like poles
Hong Quang Pham +4 more
openaire +2 more sources
We proposed a lightweight magnetizer toward the realization of a portable circumferential magnetic flux leakage (MFL) inspection tool for the detection of longitudinal defects with a linear motion between pipes and the inspection tool. The proposed magnetizer consists of four permanent magnetic poles constructing a configuration in which the like poles
Hong Quang Pham +4 more
openaire +2 more sources
A Compact Resonance-Enhanced AC Magnetic Flux Leakage Detection Probe Based on ME Composites
IEEE Sensors JournalDue to the bulky U-shaped magnetizer structure and low-efficiency magnetic sensors, traditional magnetic flux leakage (MFL) probes suffer from insufficient detection performance and poor applicability. Therefore, this article proposes a compact MFL probe
Fei Tian +6 more
semanticscholar +1 more source
Magnetic-Flux-Leakage-Based Pressure Deformation Detection of Elevator Wire Rope
JOURNAL OF THE KOREAN SOCIETY FOR NONDESTRUCTIVE TESTING, 2017본 연구에서는 누설자속기법을 이용한 와이어 로프 압착 변형 진단을 하였다. 와이어 로프를 사용하는 구조물에 적용하기 위하여 리프트오프의 발생을 최소화시킨 4채널의 누설자속센서 헤드를 제작하였다. 이를 사용하여 와이어 로프의 압착 변형 검색 실험을 수행하였다. 압착 변형 검색 실험을 위해 80 cm의 와이어 로프를 준비하였고, 중간인 40 cm 지점에 압착 변형을 가하였다. 와이어 로프 압착 변형을 진단하기 위해 자속신호를 힐버트 변환을 활용하여 순간변화량을 손상 검색에 활용하였다. 객관적인 손상 판단을 위하여 계측된 자속신호를 통계학적 GEV(generalized extreme value) 분포를 이용하여 임계값을 설정하였다.
Byoungjoon Yu, Ju-won Kim, Seunghee Park
openaire +1 more source