• DocumentCode
    1001205
  • Title

    Determination of defect length in disk coatings by autocorrelation

  • Author

    Nunnelley, L.L.

  • Author_Institution
    IBM Corporation, San Jose, California
  • Volume
    20
  • Issue
    1
  • fYear
    1984
  • fDate
    1/1/1984 12:00:00 AM
  • Firstpage
    93
  • Lastpage
    95
  • Abstract
    A technique is described for measuring the weighted defect length in particulate disk coatings by calculating the autocorrelation of the noise spectra. Data from several disks are presented. The noise-derived defect length assists the identification of the dominant noise generators in the disk coating. Examples are given where the noise is dominated by the alumina particles, pinholes (and similar voids), and buffing damage. Noise management is facilitated with this information.
  • Keywords
    Magnetic disk recording; Autocorrelation; Coatings; Density functional theory; Magnetic heads; Magnetic noise; Noise generators; Noise measurement; Noise shaping; Particle measurements; Shape;
  • fLanguage
    English
  • Journal_Title
    Magnetics, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9464
  • Type

    jour

  • DOI
    10.1109/TMAG.1984.1063023
  • Filename
    1063023
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1001205