Results 171 to 180 of about 10,784 (189)
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Study of Signal Processing for EMAT
Materials Science Forum, 2010EMAT using a magnetostrictive effect was employed to detect flaws in the sample with scaled surface. Chromium molybdenum steel samples were annealed from 600 °C to 900°C for two hours to eight hours and subjected to EMAT to survey its signal properties.
Yoshihiro Nishimura +2 more
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Oil-Tank Weld Detection Using EMAT
International Journal of Humanoid Robotics, 2017Tanks are typically used for the storage of oil by the petrochemical industry, and the storage quality is largely determined by the safety of the equipment. Recently, Electromagnetic Acoustic Transducer (EMAT) technology has been the focus of many non-destructive examinations, as EMATs can generate elastic waves without contact, thereby making it easy
Li Chen +5 more
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Ultrasonic Generation and Optimization for EMAT
AIP Conference Proceedings, 2005A model for transient ultrasonic wave generation by EMATs in non‐magnetic metals is presented. It combines analytical solutions currently available and FEM to calculate ultrasonic bulk and Rayleigh waves generated by the EMAT. Analytical solutions are used as they can be calculated quickly on a standard mathematical computer package. Calculations agree
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Inspection of 3D flaws using EMAT
2009A UT scanner must have the sampling intervals shorter and a beam spot size smaller than potential flaws in materials in order to be able to detect them. If material longer than 1m must be tested with a pitch of 1mm, more than 1000 scanning lines are needed to detect flaws, and the material cannot be examined in common production lines.
Yoshihiro Yoshihiro +2 more
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EMAT ultrasonic reflection tomography
Ultrasonics, 1987D.A. Hutchins, D.K. Mak, J.K. Hu
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EMAT Lessons Learned Using Assessment Findings
35th International Pipeline Pigging and Integrity Management Conference (PPIM 2023), 2023Matthew Romney +4 more
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