Title :
Adaptive control of dual-stage actuator for hard disk drives
Author :
Kobayashi, Masahito ; Nakagawa, Shinsuke ; Numasato, Hidehiko
Author_Institution :
Storage Technol. Res. Center, Hitachi Ltd., Japan
fDate :
June 30 2004-July 2 2004
Abstract :
The design and implementation of adaptive LS estimation and fault recovery procedure for PZT-actuated milli-actuator were presented. We confirmed that the adaptive estimation method identified the milli-actuator DC-gain precisely and the fault recovery procedure detected the degradation of milli-actuator gain during track-following data reading/writing operation.
Keywords :
adaptive control; adaptive estimation; disc drives; hard discs; least squares approximations; piezoelectric actuators; position control; servomechanisms; PZT actuated milliactuator; adaptive control; adaptive least square estimation; dual-stage actuator; hard disk drives;
Conference_Titel :
American Control Conference, 2004. Proceedings of the 2004
Conference_Location :
Boston, MA, USA
Print_ISBN :
0-7803-8335-4
