Title :
Radial error propagation issues in self servo track writing technology
Author :
Haibei Ye ; Sng, V. ; Chunling Du ; Guoxiao Guo
Author_Institution :
Data Storage Inst., Singapore, Singapore
Abstract :
Summary form only given. A typical servo track writer employs an external radial positioning device such as a laser interferometer to guide the VCM to a known radial position. In this process, the head is prone to external vibration and has poor disturbance rejection. An alternative to the external positioner is self-radial propagation (Cribbs, Patent US5448429, 1996). This paper analyzed the radial error propagation in the process and algorithm for error containment.
Keywords :
disc drives; error analysis; error handling; hard discs; servomechanisms; vibrations; VCM radial position guidance; disturbance rejection; error containment algorithm; external radial positioning device; laser interferometer; radial error propagation; self servo track writing technology; self-radial propagation; servo track writer; writing head external vibration; Delay; Displacement control; Error correction; Frequency; Hysteresis; Memory; Microactuators; Open loop systems; Optical propagation; Servomechanisms;
Conference_Titel :
Magnetics Conference, 2002. INTERMAG Europe 2002. Digest of Technical Papers. 2002 IEEE International
Conference_Location :
Amsterdam, The Netherlands
Print_ISBN :
0-7803-7365-0
DOI :
10.1109/INTMAG.2002.1000874
