Read/write coaxial magnetic head for use with apparatus for meas

Details Read/write coaxial magnetic head for use with apparatus for meas Read/write coaxial magnetic head for use with apparatus for meas

1989-12-27

1991-10-01

Wieder, Kenneth A.

Electricity: measuring and testing

Magnetic

With means to create magnetic field to test material

505726, 505843, G01R 3312

Patent

active

050537059

ABSTRACT:
A read/write head particularly suitable for mapping the superconductive properties of a sample of superconducting material. The head is arranged so that the reading and writing gaps are coaxial. Although the gaps are coaxial, the reading gap and the writing gap may be optimized in length and width to provide efficient reading and writing performance. The coaxial disposition of the heads eliminates parallax error to permit detailed mapping of the properties of the surface of a sample of superconductive material.

REFERENCES:
patent: 3096511 (1963-07-01), Taras
patent: 3636437 (1972-01-01), Soulant, Jr. et al.
patent: 4190799 (1980-02-01), Miller et al.
patent: 4323844 (1982-04-01), Mikame
patent: 4589290 (1986-05-01), Sugiyama et al.
patent: 4755753 (1988-07-01), Chern
patent: 4864236 (1989-09-01), Gibson et al.

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