Title :
Stroke projection of secondary thermal actuators for dual-stage HDDs
Author :
Wee Kiang Tan ; Chee Khiang Pang
Author_Institution :
Dept. of Electr. & Comput. Eng., Nat. Univ. of Singapore, Singapore, Singapore
fDate :
Oct. 31 2012-Nov. 2 2012
Abstract :
In this paper, the in-plane deformation response of the Thermal Position Control (TPC) actuator is identified in both time and frequency domains. Using the Decoupled Master-Slave (DMS) dual-stage control configuration, the stroke transfer function is derived for servo projection and stroke prediction of TPC actuators based on the Non-Repeatable Run-Out (NRRO) disturbance spectrum in current dual-stage Hard Disk Drives (HDDs).
Keywords :
deformation; disc drives; frequency-domain analysis; hard discs; position control; servomechanisms; time-domain analysis; NRRO disturbance spectrum; decoupled master-slave; dual-stage HDD; dual-stage control configuration; frequency domains; hard disk drives; in-plane deformation response; nonrepeatable run-out; secondary thermal actuators; servo projection; stroke prediction; stroke projection; stroke transfer function; thermal position control actuator; time domains; Servomotors; Dual-stage control; Hard Disk Drives (HDDs); Thermal Position Control (TPC); stroke projection;
Conference_Titel :
APMRC, 2012 Digest
Conference_Location :
Singapore
Print_ISBN :
978-1-4673-4734-1
