Please use this identifier to cite or link to this item:
Title: Engineering issue study of triple harmonic method for in situ flying height analysis
Authors: Zhou, Y.
Liu, B.
Li, L. 
Keywords: Flying height measurement
Head-disk interface
Magnetic disk drives
Magnetic recording
Issue Date: Aug-2006
Citation: Zhou, Y., Liu, B., Li, L. (2006-08). Engineering issue study of triple harmonic method for in situ flying height analysis. Journal of Magnetism and Magnetic Materials 303 (2 SPEC. ISS.) : e120-e123. ScholarBank@NUS Repository.
Abstract: In situ flying height testing technology is becoming more and more important in slider-disk interaction analysis and manufacturing quality control of disk drives and head-related components. Triple harmonic method is a quite promising choice for in situ flying height analysis, compared with other in situ methods reported up to now. This paper reports results of investigations on engineering issues of applying triple harmonic method for in situ flying height analysis. The paper reports results of analysis on the effects of various testing conditions on flying height testing repeatability and accuracy. Results suggest that working at reasonable high channel density and working on the ratio between third and first harmonics will be an advantage in terms of both flying height testing sensitivity and testing repeatability. Comparing with media thickness effect, the gap-length variation among different heads will be important if it is to study flying height difference among different heads and the testing is at high channel density. Also, it is suggested to work at AC erased track, in order to reduce the non-linearity caused by hard transition. © 2006 Elsevier B.V. All rights reserved.
Source Title: Journal of Magnetism and Magnetic Materials
ISSN: 03048853
DOI: 10.1016/j.jmmm.2006.01.216
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.


checked on Aug 18, 2018


checked on Jul 17, 2018

Page view(s)

checked on Aug 10, 2018

Google ScholarTM



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.