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Impedance Variation of a Coaxial Coil Encircling a Metal Tube Adapter
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Version 1
: Received: 7 September 2023 / Approved: 8 September 2023 / Online: 11 September 2023 (07:52:29 CEST)
A peer-reviewed article of this Preprint also exists.
Luo, Y.; Yang, X. Impedance Variation in a Coaxial Coil Encircling a Metal Tube Adapter. Sensors 2023, 23, 8302. Luo, Y.; Yang, X. Impedance Variation in a Coaxial Coil Encircling a Metal Tube Adapter. Sensors 2023, 23, 8302.
Abstract
. The impedance change of an induction coil surrounding a metal tube adapter is investigated by the truncated region eigenfunction expansion (TREE) method. Conventional TREE method is inapplicable to this problem as a consequence of the numerical overflow of eigenfunctions of the air-metal multi-subdomain regions. The difficulty is surmounted by a normalization procedure for the numerical eigenfunctions obtained from the finite element method (FEM). Efficient algorithm is devised by the Clenshaw-Curtis quadrature rule for integrals involving the numerical eigenfunctions. Numerical results of the TREE and FEM simulation coincide very well in all cases, and the efficiency of the proposed method is also confirmed.
Keywords
Tube adapter; eddy current; numerical eigenfunctions; Clenshaw-Curtis quadrature
Subject
Physical Sciences, Applied Physics
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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