用磁力非接触操控导电物体，实现三维精准定位。
Non-Contact Manipulation of Induced Magnetic Dipoles
- 通过变化磁场诱导涡流，产生反向磁偶极矩实现操控。
- 实验验证铝球在封闭回路下完成三维位置控制。
- 为太空垃圾回收等低力场景提供新方法，适合机器人与微操作领域。
将磁操控拓展至导电但非磁性物体，可开启以往仅限于硬磁或软磁材料的应用场景。特别值得关注的是利用振荡磁场回收太空碎片，该环境恰好适合感应磁操控产生的微弱作用力。基于先前实现3D开环位置控制的成果（利用感应涡流产生的反向磁偶极矩），本文在实验室中实现了半浮空铝球的闭环位置控制，并探索了多种力反演方法的有效性。闭环控制方法标志着实现诱导磁偶极子三自由度位置控制应用的重要一步。
原文摘要 · Abstract (English)
Extending the field of magnetic manipulation to conductive, non-magnetic objects opens the door for a wide array of applications previously limited to hard or soft magnetic materials. Of particular interest is the recycling of space debris through the use of oscillating magnetic fields, which represent a cache of raw materials in an environment particularly suited to the low forces generated from inductive magnetic manipulation. Building upon previous work that demonstrated 3D open-loop position control by leveraging the opposing dipole moment created from induced eddy currents, this work demonstrates closed-loop position control of a semi-buoyant aluminum sphere in lab tests, and the efficacy of varying methods for force inversion is explored. The closed-loop methods represent a critical first step towards wider applications for 3-DOF position control of induced magnetic dipoles.
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