External disturbance rejection control based on identification of transfer characteristics from the acceleration sensor for access control of hard disk drive system
Tóm tắt
In this paper, a new method for external disturbance rejection control which is based on the identification of transfer characteristics from an acceleration sensor is proposed. For hard disk drives, the external disturbance which should be reduced is growing with widespread use of movable computers and other independent machines. In order to reject the effect of the external disturbance, the authors apply the feedforward controller which is designed by a recursive least squares (RLS) algorithm and fixed trace (FT) algorithm utilizing the acceleration signal and the estimated disturbance signal. Some experimental results in which a disk drive is shaken in the vertical direction are shown to verify the effectiveness of the proposed method.
Từ khóa
#Control systems #Acceleration #Sensor phenomena and characterization #Sensor systems #Access control #Hard disks #Signal design #Algorithm design and analysis #Least squares approximation #Resonance light scatteringTài liệu tham khảo
10.1109/AIM.1997.653017
white, 1996, Masayoshi Tomizuka: “In-creased Disturbance Rejection in Magnetic Disk Drives by Acceleration Feedforward Control, Proceedings of the 13th IFAC, 10.1016/S1474-6670(17)58864-3
10.1109/41.238016
beak, 1999, Vibration Rejection Control for Disk Drives by Acceleration Feedforward Control, Proceedings of the 38th Conference on Decision and Control
10.1109/3516.712115
10.1109/41.954558