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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)
Appears in Collections:Staff Publications

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