Eddy currents in fine polycrystalline metal particle
نویسندگان
چکیده
منابع مشابه
Imaging the solidification of molten metal by eddy currents: II
This is the second part of two sister papers. The first paper developed an algorithm for imaging the solidification of molten metal inside a pipe where the conductivity of the metal inside the pipe was assumed to vary continuously (i.e., no clear boundary between the solid and the melt). Due to this nature, the algorithm shown in the first paper involves computationally expensive volume integra...
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This paper presents an eddy-current-based technique for imaging the solidification of molten metal inside a metal pipe. This technique is motivated by the fact that the ac (alternating current) impedance seen from a solenoid placed outside the pipe is dependent on the distribution of the solidification inside the pipe provided that the ac frequency is properly chosen and the overall thickness o...
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An expression for the eddy current loss in solid rectangular cores is obtained using linear electromagnetic field analysis. Wherefrom text book formula for eddy current loss is derived highlighting various assumptions involved. To get an insight into the current interruption phenomena, electromagnetic fields in a composite rectangular core are analyzed. It is concluded that the reduction in edd...
متن کاملTools for Education in Eddy Currents
The paper presents two tools for teaching the basics of eddy current inspection. The first tool is a semi-quantitative simulation code showing the correspondence between probe action and signal behaviour. The student guides a virtual probe over a virtual workpiece with different defects. The measurement immediately appears in the normalized impedance plane. The second tool is a complete eddy cu...
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ژورنال
عنوان ژورنال: Journal of Physics: Conference Series
سال: 2019
ISSN: 1742-6588,1742-6596
DOI: 10.1088/1742-6596/1309/1/012009