Title :
Direct electrostatic levitation and propulsion
Author :
Jin, Ju ; Higuchi, Toshiro
Author_Institution :
Kanagawa Acad. of Sci. & Technol. Found., Kawasaki, Japan
fDate :
4/1/1997 12:00:00 AM
Abstract :
A new type of mechanism called direct electrostatic levitation and propulsion (DELF) has been successfully developed. The novel aspect of this mechanism is that an object can be directly levitated and driven via electrostatic forces, In this paper, a brief review of basic principles is presented. This is followed by a description of the structure of a prototype DELP mechanism, including electrode design, position feedback control method for levitation, driving principle and the operational procedure. Experimental results which demonstrate completely contactless transportation of a 3.5-in aluminum hard disk media are also presented
Keywords :
control system analysis; electric propulsion; electrodes; electrostatic devices; feedback; hard discs; position control; transportation; 3.5 in; aluminum hard disk media; direct electrostatic levitation and propulsion; driving principle; electrode design; electrostatic forces; operational procedure; position feedback control method; Electrodes; Electrostatic levitation; Glass; Hard disks; Magnetic levitation; Propulsion; Semiconductor materials; Silicon; Surface contamination; Transportation;
Journal_Title :
Industrial Electronics, IEEE Transactions on
