Specification for still video floppy disk magnetic recording system

2015 ◽  
Author(s):  
Deng Pan ◽  
Wenping Song

A model for studying lubricant depletion in HAMR slider/disk system was developed based on molecular dynamics simulation. We found that the lubricant molecular weight has small effect on lubricant depletion.


2013 ◽  
Vol 770 ◽  
pp. 319-322 ◽  
Author(s):  
Piya Kovintavewat ◽  
Santi Koonkarnkhai ◽  
Aimamorn Suvichakorn

During hard disk drive (HDD) testing process, the magneto-resistive read (MR) head is analyzed and checked if the head is defective or not. Baseline popping (BLP) is one of the crucial problems caused by head instability, whose effect can distort the readback signal to the extent of causing possible sector read failure. Without BLP detection algorithm, the defective read head might pass through HDD assembling process, thus producing an unreliable HDD. This situation must be prevented so as to retain customer satisfaction. This paper proposes a simple (but efficient) BLP detection algorithm for perpendicular magnetic recording systems. Results show that the proposed algorithm outperforms the conventional one in terms of both the percentage of detection and the percentage of false alarm, when operating at high signal-to-noise ratio.


2009 ◽  
Vol 45 (11) ◽  
pp. 5038-5043 ◽  
Author(s):  
Zhi-Min Yuan ◽  
Bo Liu ◽  
Tiejun Zhou ◽  
Chi Keong Goh ◽  
Chun Lian Ong ◽  
...  

2009 ◽  
Vol 45 (11) ◽  
pp. 4962-4965 ◽  
Author(s):  
Q. D. Zhang ◽  
B. X. Xu ◽  
J. Zhang ◽  
N. Y. Liu ◽  
G. L. Chin ◽  
...  

2009 ◽  
pp. 210-210-27
Author(s):  
Shizhu Wen ◽  
Jianbin Luo ◽  
Yuanzhong Hu ◽  
Jianbin Luo ◽  
Weiming Lee ◽  
...  

2015 ◽  
Vol 781 ◽  
pp. 215-218
Author(s):  
Nuttapon Chaidaungsri ◽  
Arkom Kaewrawang ◽  
Komkrit Chooruang ◽  
Damrongsak Tongsomporn

The characteristics of magnetic recording are necessary to understand in order to increase the areal densities and improve the perfermance of recording system. Therefore, experimental tools must be developed to help researchers to carry out signal and noise recording experiments on different heads and media combinations. In this paper, the perpendicular magnetic recording footprint using spin-stand microscopy is demonstrated. It was found experimentally that the magnetic footprint can precisely catch some recording dynamics of the write heads during the write gate off conditions and also provide useful insight information of the recording performance.


2011 ◽  
Vol 47 (10) ◽  
pp. 3312-3315 ◽  
Author(s):  
Xinzhi Xing ◽  
Davide Guarisco ◽  
Guang Yang ◽  
Zhihao Li ◽  
Kroum Stoev ◽  
...  

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