Application of eddy currents induced by permanent magnets for pipeline inspection

Nestleroth, J. Bruce; Davis, R. J.

doi:10.1016/j.ndteint.2006.07.002

Cited by 70 publications

(40 citation statements)

References 1 publication

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“…Nestleroth and Davis [30] proposed an alternative approach to the common concentric coil method to induce low-frequency EC for pipes and tubes. Pairs of permanent magnets rotating around the central axis are used to induce high current densities in the material under inspection.…”

Section: Eddy Currentmentioning

confidence: 99%

Water and Wastewater Pipe Nondestructive Evaluation and Health Monitoring: A Review

Rizzo

2010

Advances in Civil Engineering

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pipe networks assure the transportation of primary commodities such as water, oil, and natural gas. The quantitative and early detection of defects in pipes is critical in order to avoid severe consequences. As a result of high-profile accidents and economic downturn, research and development in the area of pipeline inspection has focused mainly on gas and oil pipelines. Due to the low cost of water, the development of nondestructive inspection (NDI) and structural health monitoring (SHM) technologies for fresh water mains and sewers has received the least attention. Moreover, the technical challenges associated with the practical deployment of monitoring system demand synergistic interaction across several disciplines, which may limit the transition from laboratory to real structures. This paper presents an overview of the most used NDI/SHM technologies for freshwater pipes and sewers. The challenges that said infrastructures pose with respect to oil and natural gas pipeline networks will be discussed. Finally, the methodologies that can be translated into SHM approaches are highlighted.

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Section: Eddy Currentmentioning

confidence: 99%

Water and Wastewater Pipe Nondestructive Evaluation and Health Monitoring: A Review

Rizzo

2010

Advances in Civil Engineering

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“…Nestleroth and Davis [47] studied pairs of permanent magnets rotating around the central axis of a pipe in proximity of its surface. The generated magnetic field was measurably disturbed over a defect.…”

Section: Mfl(v): Velocity Effectsmentioning

confidence: 99%

Finite Element Method Applied in Electromagnetic NDTE: A Review

Augustyniak

Usarek

2016

J Nondestruct Eval

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The paper contains an original comprehensive review of finite element analysis (FEA) applied by researchers to calibrate and improve existing and developing electromagnetic non-destructive testing and evaluation techniques, including but not limited to magnetic flux leakage (MFL), eddy current testing, electromagnetic-acoustic transducers (EMATs). Premium is put on the detection and modelling of magnetic field, as the vast majority of ENDT involves magnetic induction, either as a primary variable MFL or a complementary phenomenon (EC, EMATs). FEA is shown as a fit-for-purpose tool to design, understand and optimise ENDT systems, or a Reference for other modelling algorithms. The review intentionally omits the fundamentals of FEA and detailed principles of NDT. Strain-stress FEA applications in NDT, especially in ultrasonography and hole-drilling methodology, deserve as well a separate study.

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“…Fig. 16 depicts an inspection platform for oil pipeline walls reported by Nestleroth & Davis (2007). It is integrated by a rotating permanent magnetic exciter, which may induce uniform eddy currents in the pipe wall.…”

Section: Challenges and Future Applicationsmentioning

confidence: 99%

Development of Resonant Magnetic Field Microsensors: Challenges and Future Applications

Herrera-May¹,

Aguilera-Cortés²,

García-Ramírez³

et al. 2011

Microsensors

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Application of eddy currents induced by permanent magnets for pipeline inspection

Cited by 70 publications

References 1 publication

Water and Wastewater Pipe Nondestructive Evaluation and Health Monitoring: A Review

Water and Wastewater Pipe Nondestructive Evaluation and Health Monitoring: A Review

Finite Element Method Applied in Electromagnetic NDTE: A Review

Development of Resonant Magnetic Field Microsensors: Challenges and Future Applications

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