Dynamic magnetic information storage or retrieval – Head – Coil
Patent
1994-12-06
1997-03-18
Heinz, A. J.
Dynamic magnetic information storage or retrieval
Head
Coil
360126, 296031, G11B 517
Patent
active
056128436
ABSTRACT:
A process for manufacturing magnetic heads whereby a pair of separate coils are placed about the opposed legs of the magnetic loop core element with one coil comprising the read/write coil and the other coil being placed adjacent the gap in the core. During the removal of material from the core element to set the throat height at the gap thereof, a variable current signal is provided to the read/write coil while the other coil generates voltage pulses due to flux changes in the magnetic core element with the magnitude of such voltage pulses being used to monitor the removal process so that the correct throat height is set according to predetermined magnetic characteristics of the core element.
REFERENCES:
patent: 4390916 (1983-06-01), Chow
patent: 4675986 (1987-06-01), Yen
patent: 4689877 (1987-09-01), Church
patent: 5242524 (1993-09-01), Leach
Reprint of Proceedings of the Six International Conference on Ferrites(ICF6); Tokyo and Kyoto Japan; 1992, Pulse Transfer Analysis of Ferrites for Recording Head Applications; A. Sano, P. Chittiporn, K. Honda, E. Packard, V. Nguyen, R. Limb, T. Watanabe; pp. 1468-1471.
Heinz A. J.
Kelly Robert S.
LandOfFree
Method for accurately setting the gap in an inductive magnetic h does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for accurately setting the gap in an inductive magnetic h, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for accurately setting the gap in an inductive magnetic h will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1710328