Coding head for the magnetization of layers

Details Coding head for the magnetization of layers Coding head for the magnetization of layers

1995-11-29

1997-11-04

Gellner, Michael L.

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

For magnetizing or demagnetizing

H01F 720, H01F 1300

Patent

active

056844441

ABSTRACT:
A coding head for applying magnetic codes onto magnetizable layers of scales, graduations, angle encoders, transport belts and the like has a magnetic pole (10) about which a coil (12) is wound, the saturation induction of the magnetic pole being selected in dependence upon the coercive field strength of the magnetizable layer (18). In this case, the saturation induction (in Tesla) has a specified relationship to the coercive field strength (in kOe).

REFERENCES:
patent: 4210946 (1980-07-01), Iwasaki et al.
patent: 4251842 (1981-02-01), Iwasaki et al.
patent: 5031064 (1991-07-01), Ashikawa et al.
patent: 5085935 (1992-02-01), Mallary
Annals of Physics (Annalen der Physik), V. Poulsen, Nov. 1900, vol. 3, pp. 754-760.
An Analysis for the Magnetization Mode for High Density Magnetic Recording, Iwasaki et al, IEEE Trans. on Magn., vol. MAG-13, No. 5, pp. 1272-1275, 1977.

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