Title :
New RRO data collection method for HDD
Author :
Qing-Wei Jia ; Fu-Cai Wang ; Zhong-Feng Wang
Author_Institution :
Sci. Park Design Center, Seagate Technol. Int., Singapore
Abstract :
In this paper, a new method to collect RRO disturbance data is proposed. The estimated RRO disturbance obtained from the proposed method will not be affected by the variation of the actuator model. Test results show that the servo tracking performance can be significantly improved by using the estimated disturbance to compensate the actual RRO disturbances
Keywords :
actuators; data acquisition; disc drives; error compensation; hard discs; position control; servomechanisms; HDD; actuator model; hard disk drive; position error signal; repeatable runout data collection method; repeatable runout disturbance; servo tracking performance; Actuators; Automatic frequency control; Disk drives; Iterative methods; Programmable control; Rail to rail outputs; Servomechanisms; Shape; Testing; Writing;
Conference_Titel :
Asia-Pacific Magnetic Recording Conference, 2004. APMRC 2004
Conference_Location :
Seoul
Print_ISBN :
0-7803-8717-1
DOI :
10.1109/APMRC.2004.1521942
