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https://scholarbank.nus.edu.sg/handle/10635/70542
| Title: | Implementation of a Servo Positioning System on Spin Stand | Authors: | Wong, W.E. Feng, L. Guo, G. Ye, W. Al-Mamun, A. |
Keywords: | Magnetic recording system Position error signals (PES) Real-time control Servo system Spin stand |
Issue Date: | 2003 | Citation: | Wong, W.E.,Feng, L.,Guo, G.,Ye, W.,Al-Mamun, A. (2003). Implementation of a Servo Positioning System on Spin Stand. IECON Proceedings (Industrial Electronics Conference) 3 : 2114-2119. ScholarBank@NUS Repository. | Abstract: | To achieve an ultra-high track density in magnetic recording systems, high precision and efficient servomechanism is needed to position the head on the desired track. In this paper, a multiple-frequency servo encoding and modified discrete Fourier transform (DFT)-based decoding scheme is used to detect the position error signal (PES) as the feedback signal for reader servo control on a spin stand. A personal computer (PC) is used to perform the DFT and generate the PES at 8 kHz speed. A modified PZT head cartridge base is used as the positioning device on the spin stand. A closed-loop bandwidth of 300 Hz has been achieved, resulting in an 18% improvement of the tracking accuracy. | Source Title: | IECON Proceedings (Industrial Electronics Conference) | URI: | http://scholarbank.nus.edu.sg/handle/10635/70542 |
| Appears in Collections: | Staff Publications |
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