Hard disk inspection apparatus

Details Hard disk inspection apparatus Hard disk inspection apparatus

1992-06-15

1994-02-22

Gluck, Richard E.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

324212, G11B 556

Patent

active

052893278

ABSTRACT:
A hard disk inspection apparatus has a fixed magnetic head for magnetically recording data on and reproducing data from an outside recording area of the back surface of a hard disk and a fine-adjustment magnetic head with a micrometer mechanism for magnetically recording data on and reproducing data from an outside recording area of the front surface of the hard disk. Both heads are mounted on a carriage. A fixed magnetic head for magnetically recording data on and reproducing data from an inside recording area of the back surface of the hard disk and a fine-adjustment magnetic head with another micrometer mechanism for magnetically recording data on and reproducing data from an inside recording area of the front surface of the hard disk are both mounted on another carriage. This arrangement enables easy and accurate alignment between the magnetic heads and improves the inspection efficiency.

REFERENCES:
patent: 3984763 (1976-10-01), Koester et al.
patent: 4158212 (1979-06-01), Dattilo
patent: 5189569 (1973-02-01), Kurasawa

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