Magnetic head having gap depth sighing aperture

Details Magnetic head having gap depth sighing aperture Magnetic head having gap depth sighing aperture

1989-09-15

1991-10-15

Severin, David J.

Dynamic magnetic information storage or retrieval

Head

Head surface structure

360125, G11B 5187

Patent

active

050579568

ABSTRACT:
A magnetic head including a head core having at least one gap and a pair of non-magnetic reinforcing members bonded so as to clamp the head core therebetween. An elongate notch or bore is formed in at least one of the non-magnetic reinforcing members, the notch or bore extending from the gap to the end of the non-magnetic reinforcing member in the direction in which the gap extends, so that the depth of the gap can be directly and optically observed through the notch or bore. It is therefore possible to measure the gap depth easily and accurately in the magnetic head manufacturing process and hence possible to obtain a magnetic head with high accuracy.

REFERENCES:
patent: 3678211 (1972-07-01), Hoogendorn et al.
patent: 3764756 (1973-10-01), Murray
patent: 4219853 (1980-08-01), Albert et al.

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