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Dependence of reproducing gap null on medium permeability and spacing

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2 Author(s)
H. Bertram ; Ampex Corporation, Redwood City, CA ; D. Lindholm

Experimental evidence and theoretical calculations show that the position of the reproducing gap null is influenced by the anisotropic permeability of the recording medium and the head-to-medium separation. Results indicate a stronger influence than expected from previous theory. The shift is typically 4 percent for a mean relative permeability of two and minimal head separation.

Published in:

IEEE Transactions on Magnetics  (Volume:18 ,  Issue: 3 )