一种外驱动电流隐身衣的设计
Design of an Externally Driven Current Cloak
摘要：
导电基质的不均匀性使所施加的电流的流动模式变形。通常的电流隐身可以定义为对非均匀区域周围的矩阵特性进行永久性的修改，以保证电流在经过修改区域前后的流动模式相似，因此它意味着非均匀区域的“电不可见性”。在这里，我们介绍了一个电流斗篷的概念，它可以通过外部磁场来调节，例如打开和关闭。我们证明了分析和使用有限元模拟的电流斗篷可以构建和操纵的外部磁场的具体系统组成的磁阻矩阵与不锈钢夹杂物。
英文摘要：
An inhomogeneity into a conductive matrix deforms the flow pattern of an applied electric current. A usual current cloak can be defined as a permanent modification of the matrix properties around the inhomogeneity guaranteeing that the current flow pattern is similar before and after passing by the modified zone, so it implies the "electrical invisibility" of the inhomogeneous region. Here we introduce the concept of a current cloak that can be tuned --switched on and off, for example-- by means on an external field. We demonstrate analytically and using Finite Elements Simulations that a current cloak can be constructed and manipulated by an external magnetic field for a concrete system consisting in a magneto-resistive matrix with a stainless steel inclusion.
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