University of Leicester engineers have unveiled a concept for a device designed to magnetically "cloak" sensitive components, making them invisible to detection.
A magnetic cloak is a device that hides or shields an object from external magnetic fields by manipulating how these flow around an object so that they behave as if the object isn't there.
In Science Advances, the team of engineers demonstrate for the first time that practical cloaks can be engineered using superconductors and soft ferromagnets in forms that can be manufactured.
Using computational and theoretical techniques such as advanced mathematical modeling and high-performance simulations based on real-world parameters, they have developed a new physics-informed design framework that allows magnetic cloaks to be created for objects of any shape. Until now, cloaks were mostly theoretical or restricted to simple shapes like cylinders.
This study demonstrates for the first time how to design magnetic cloaks for the irregular geometries we see in the real world. These cloaks also maintain their effectiveness across a broad range of field strengths and frequencies.
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