Passive diamagnetic contactless suspension rotor with electrostatic glass motor

Micro & nano letters

article

Yuanping Xu¹  Jin Zhou¹  Hannes Bleuler²  Ryosuke Kan³ 

[1] College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics;Laboratory of Robotic Systems;Department of Mechanical Engineering, University of Tokyo

关键词: rotors;    glass;    printed circuits;    air gaps;    mechatronics;    magnetic levitation;    graphite;    stators;    frictionless diamagnetic contactless suspension rotor;    magnets;    levitation air gap;    narrow air gap;    disc-shaped rotor;    high voltage electrostatic glass motor;    passive diamagnetic contactless suspension rotor;    pyrolytic graphite;    rotating function;    micro-mechatronic system;    size 20.0 mm;    voltage 700.0 V;    size 100.0 mum;    temperature 293 K to 298 K;    Nd-Fe-B;   

DOI  :  10.1049/mnl.2019.0144

学科分类：计算机科学（综合）

来源: Wiley

【 摘 要 】

In this work, we introduce a newly developed passive and frictionless diamagnetic contactless suspension rotor with electrostatic glass motor. A 20 mm diameter disc-shaped rotor comprised of pyrolytic graphite with glass is fabricated. The rotor is diamagnetically and passively levitated by an array of Nd–Fe–B magnets at room temperature without any energy supply. To realise the rotating function, a 700 V high voltage electrostatic glass motor is designed and arranged in the levitation air gap between the rotor and the magnets. To install the stator in this narrow air gap, we fabricated the stator using a flexible printed circuit with 100 μm thickness. The newly developed system is more compact, stable and of high performance. The maximum speed has been improved doubly to 300 rpm in atmosphere. We intend to draw attention to this uncommon levitation and to show that it could be used for micro-mechatronic system.

【 授权许可】

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