ZHAO Xiao-gang, WANG Hai-wei, XIE Chang-sheng, et al. Restraining the Radial Error of the Self-Servowriting Process in Hard Disk with Sparating Magnetic Head[J]. Acta Electronica Sinica, 2008, 36(11): 2239-2242.
ZHAO Xiao-gang, WANG Hai-wei, XIE Chang-sheng, et al. Restraining the Radial Error of the Self-Servowriting Process in Hard Disk with Sparating Magnetic Head[J]. Acta Electronica Sinica, 2008, 36(11): 2239-2242.DOI:
The paper analyzes the reason of track shape error and the phenomenon of radial error propagation.Next the paper discusses in detail the effect of separating magnetic head to self-servowriting process.It shows the change of skew angel of the head will affect the radial error propagation procedure.In the end a new weighted correction signal method is proposed in the paper.The method has good containment effect which is proved in theory and in simulation test when reference signal changes.