Electricity: measuring and testing – Magnetic – Magnetic information storage element testing
Patent
1988-04-08
1990-10-30
Strecker, Gerard R.
Electricity: measuring and testing
Magnetic
Magnetic information storage element testing
324158F, 360 31, 361384, 361390, 369 53, G01R 3312, G01R 3102, H05K 500, H05K 700
Patent
active
049671553
ABSTRACT:
An environmentally controlled media defect detection system for Winchester disk drives includes a testing cabinet which is divided into two sections. The first section is maintained at an environmentally controlled elevated temperature for testing Winchester disk drives at elevated operational temperatures above ambient room temperatures. The second section is thermally insulated from the first section and contains a plurality of disk drive test units. One test unit is coupled to each Winchester disk drive being tested, and the test units have the ability to apply digital signals to the drive for writing and reading signals onto tracks of the drives, determining malfunctions, and imperfections in the disk media of the hard disk drive systems.
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patent: 4636726 (1987-01-01), Santomango et al.
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patent: 4754397 (1988-06-01), Varaiya et al.
Micropolis Corporation
Strecker Gerard R.
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