Browse Prior Art Database

Air Lubricated Magnetic Transducer

IP.com Disclosure Number: IPCOM000093163D
Original Publication Date: 1967-Jun-01
Included in the Prior Art Database: 2005-Mar-06
Document File: 2 page(s) / 36K

Publishing Venue

IBM

Related People

Ma, JT: AUTHOR

Abstract

The spacing between a magnetic tape and a noncontact recording head can be reduced. This is.effected by positioning the transducer in a heretofore unstable region of the tape and introducing devices to stabilize the tape at a reduced spacing.

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Air Lubricated Magnetic Transducer

The spacing between a magnetic tape and a noncontact recording head can be reduced. This is.effected by positioning the transducer in a heretofore unstable region of the tape and introducing devices to stabilize the tape at a reduced spacing.

As pointed out in "An Investigation of Self-Acting for Bearings" Transactions of the ASME Journal of Basic Engineering, Vol. 87, Series D, Number 4, December 4, 1965, pp. 837-846, magnetic tape 1 tends to become unstable where it exits from head 2. Tape 1 can be stabilized with a spacing profile as shown by the introduction of vacuum supply 3 to slot 4. Valve 5 or other construction between plenum 6 and supply 3 serves as an impedance matching device.

By proper adjustment of valve 5, constant thickness region 7 and exit region 8 can be stabilized to produce the spacing profile shown. Transducers 9 can then be located at region 8 to take advantage of the closer spacing at this point. A dual set of transducers allows operation of the tape in either direction.

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