By Topic

Noise analysis of ferrite head in audio tape recording

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

1 Author(s)
Watanabe, H. ; AKAI Electric Company, Ltd., Tokyo, Japan

Mechanisms of the generation and the control of magnetic head noise in an audio tape recorder were studied. Head noise was generated from some flux changes by 180° domain wall movements which were produced because of relaxation of shocks given by a frictional vibrating tape. Then noise spectrums were based on vibration spectrums of a tape. Low noise property of a permalloy head was due to large eddy current losses which were accompanied by restrictions of domain wall movements. On a ferrite head noise, effects of crystalline anisotropy and distortion were great, however, a low noise ferrite head was not presented until shape anisotropy and pinning effects by the grain boundary or SnO2precipitation were applied.

Published in:

Magnetics, IEEE Transactions on  (Volume:10 ,  Issue: 3 )