期刊
NDT & E INTERNATIONAL
卷 54, 期 -, 页码 69-74出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ndteint.2012.11.010
关键词
Analytical solution; Electromagnetic field; Eddy current testing; Pipe; Probe coil
Eddy current field excited by a probe coil near a conductive pipe is studied analytically by means of a second-order vector potential formalism in this paper. Closed-form expressions of the second-order vector potentials are deduced directly in the cylindrical coordinate system by using the Biot-Savart law and the reciprocal of distance described by the modified Bessel functions and exponential functions. Both the impedance change of an excitation coil and the induced voltage in a pick-up solenoid coil are obtained. The theoretical results are in excellent agreement with the experimental results, which verifies the analytical solutions. (C) 2012 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据