Results 271 to 280 of about 406,343 (328)
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Transient eddy current analysis for a spiral gradient pulse
Journal of Magnetic Resonance, 2023Eddy currents are induced in the metallic structures of MRI machines due to the rapid switching of gradient fields generated by gradient coils. Several undesirable effects are associated with the induced eddy currents such as heat, acoustic noise, and MR image distortions.
Sadeq S Alsharafi +3 more
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Experimental investigation of low-frequency and pulsed eddy current testing in thickness measurement
Nondestructive Testing and EvaluationThis paper experimentally compares low-frequency and pulsed eddy current testing techniques in measuring plate thickness. The experimental setups for both methods were built using general commercial devices.
Jiuhao Ge, Fei Xu, N. Yusa
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Pulsed eddy current thermography for corrosion characterisation
International Journal of Applied Electromagnetics and Mechanics, 2012Corrosion characterisation on metal substrates is a major problem in the field of corrosion science and Non-destructive Evaluation (NDE). In this work, the electromagnetic NDE method, Pulsed Eddy Current (PEC) Thermography, has been applied to evaluate the corrosion on the mild steel plates.
Tian, Gui Yun +3 more
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Local eddy current measurements in pulsed fields
Journal of Magnetism and Magnetic Materials, 2008Abstract This work presents new eddy current measurements in pulsed fields. A commercial point pick-up coil is used to detect the induction signal along the radius of Cu and Al samples with cylindrical shape and diameters between 5 and 35 mm. Local eddy current measurements were performed on the surface of conducting materials due to the small ...
J.H. Espina-Hernández +2 more
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IEEE Sensors Journal, 2021
Pulsed eddy current (PEC) sensing is a nondestructive testing and evaluation technique widely used for detecting and quantification of flaws and properties of metallic test pieces.
Nalika Ulapane +3 more
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Pulsed eddy current (PEC) sensing is a nondestructive testing and evaluation technique widely used for detecting and quantification of flaws and properties of metallic test pieces.
Nalika Ulapane +3 more
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Pulse Eddy Current Testing Thin Metal Thickness
2018 5th International Conference on Information Science and Control Engineering (ICISCE), 2018The pulsed eddy current testing is commonly method that used for the detection of metal thickness. This paper takes the thin aluminum plate as the research object, uses Ansoft finite element simulation software, and uses the square wave pulse to stimulate the aluminum plate with different thickness to carry on the examination. It is found that the time-
Zhi-chun Wang, Jun-wei Lu, Qing-nan Hu
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Massively Multiplexed Eddy Current Testing and its Comparison with Pulsed Eddy Current Testing
AIP Conference Proceedings, 2004This compares the capabilities of the Pulsed Eddy Current technique with those of an Eddy Current instrument capable of multiplexing through 32 discrete frequencies. Pulsed Eddy Current testing has shown some definite advantages due to the application of an extended series of frequencies to a test piece and analysis using a time‐based display. The Eddy
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, 2021
The pulsed eddy current technique has received a great deal of attention in recent decades. To improve its performance and applicability, several kinds of probes, such as rectangular and gradient field probes for plate detection and encircling probes for
Jiuhao Ge, Baowang Hu, Chenkai Yang
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The pulsed eddy current technique has received a great deal of attention in recent decades. To improve its performance and applicability, several kinds of probes, such as rectangular and gradient field probes for plate detection and encircling probes for
Jiuhao Ge, Baowang Hu, Chenkai Yang
semanticscholar +1 more source
Poetry to Pulsed Eddy Currents
1999Most papers are about method and results, building blocks in the temples of physics and engineering. And rightly so. But this paper is about process, the process of discovery and of creativity. It is about frustration, joy, commitment, determination, steadfastness, failure, and ultimately triumph.
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Electromagnetic Enhancement of Pulsed Eddy Current Signals
AIP Conference Proceedings, 2007The sensitivity of pulsed eddy current (PEC) testing is increased when a layer of magnetic material is placed on the far side of the conductive test piece. This procedure ensures preservation of the lift‐off point of intersection (LOI) feature, otherwise non‐existent for the PEC inspections of magnetic materials.
Mandache, C., Lefebvre, J. H. Vivier
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