Spinstand control characterization of an electromagnetic slider microactuator

Author

Bedillion, Mark D. ; Karaman, Mahmut ; Chu, Patrick B.

Author_Institution

Seagate Technol., Pittsburgh, PA, USA

fYear

2005

fDate

8-10 June 2005

Firstpage

3216

Abstract

Increasing areal densities in disc drives require high performance servo tracking systems to attenuate runout. High bandwidth, large stroke microactuators are used to improve positioning accuracy by eliminating disturbances at higher frequencies. This paper details modeling and servo control of an electromagnetic slider microactuator designed at Seagate and its promise as a solution for high accuracy tracking control. The device has passive high frequency windage disturbance attenuation due to its structure. Controller design is developed for a single stage spinstand environment to show the device effectiveness.

Keywords

control system synthesis; disc drives; electromagnetic actuators; microactuators; position control; servomechanisms; controller design; disc drives; electromagnetic slider microactuator; passive high frequency windage disturbance attenuation; servo tracking systems; spinstand control characterization; Actuators; Attenuation; Bandwidth; Coils; Frequency; Magnetic heads; Magnetic levitation; Magnetic separation; Microactuators; Servomechanisms;

fLanguage

English

Publisher

ieee

Conference_Titel

American Control Conference, 2005. Proceedings of the 2005

ISSN

0743-1619

Print_ISBN

0-7803-9098-9

Electronic_ISBN

0743-1619

Type

conf

DOI

10.1109/ACC.2005.1470467

Filename

1470467