Abstract
• Harmonic signal generators is developed and harmonic magnetic field detection technology is proposed. • Magnetic focusing array detection probe is designed. • Inner and outer damage of in-service pipeline can be detected based on the proposed technology. In this study, a harmonic magnetic field detection technology is proposed in order to detect the damage of an in-service coated steel pipeline. Based on the electromagnetic theory and magnetic field detection principle integrated with magnetic focusing technology, an array consisting of focusing detection probe and harmonic magnetic field detection system was designed. Numerical simulations for different coil structures was performed by finite element simulation technique to explore the focusing performance of designed coil structure. The feasibility of the detection probe and harmonic magnetic field detection technology was verified by experimental results and numerical simulations. The results of this study show that the proposed method can provide excellent information about the full wall thickness by penetrating the cladding over the surface of pipeline and effectively identify the outer wall defects and the inner wall corrosion.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
