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Flat-profile tape recording head

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2 Author(s)
Biskeborn, R.G. ; Bus. Machines Corp., San Jose, CA, USA ; Eaton, J.H.

In conventional recording, tape wraps a cylindrically contoured head. The authors describe an implementation in which tape contacts a flat-profile bidirectional recording head. Magnetic transducers are located away from the air-scraping edges in the region of uniform head-tape spacing. Optical measurements on glass heads confirm intimate contact between head and smooth media below approximately 3 m/s. Wallace spacing losses show an increase with tape speed, but contact is still evidenced by head wear at 6 m/s. Air leakage and tape mechanical effects lift the tape edges. The width of the lost-contact region is controlled by the design. Flat heads are fabricated using hard-disk-drive head materials, methods, and facilities, and are implemented in the IBM TotalStorage 3580 Linear Tape Open Ultrium drive.

Published in:

Magnetics, IEEE Transactions on  (Volume:38 ,  Issue: 5 )

Date of Publication:

Sep 2002

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