• DocumentCode
    1204894
  • Title

    The Mechanism of Supersonic Frequencies as Applied to Magnetic Recording

  • Author

    Toomim, Hershel ; Wildfeuer, D.

  • Author_Institution
    Research Engineering Division, Lewyt Corporation, New York 7, N.Y.
  • Volume
    32
  • Issue
    11
  • fYear
    1944
  • Firstpage
    664
  • Lastpage
    668
  • Abstract
    The addition of a supersonic current to the signal current in recording on a magnetic medium results in recordings of low-harmonic distortion. Recording in this fashion is an accepted part of the art, although it is not well understood. The mechanism whereby this type of recording operates is presented in Part 1. An extension in the oscillographic technique of obtaining B-H curves of magnetic specimens is presented in Part II. A circuit is presented which makes possible simultaneous viewing of major and minor hysteresis loops.
  • Keywords
    Audio recording; Frequency; Magnetic fields; Magnetic flux; Magnetic heads; Magnetic hysteresis; Magnetic materials; Magnetic recording; Saturation magnetization; Wire;
  • fLanguage
    English
  • Journal_Title
    Proceedings of the IRE
  • Publisher
    ieee
  • ISSN
    0096-8390
  • Type

    jour

  • DOI
    10.1109/JRPROC.1944.233695
  • Filename
    1694873
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1204894