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Abstract
A correlation study is performed on three types of contact start/stop (CSS) testers: a spin-stand tester, a drive tester with an aluminum strain arm, and a drive tester with a brass strain arm. The measured stiction values are different, up to 78% for the same type of head/media combination on these three types of testers. It is found that strain arm resonant frequency, electrical filter, and system dynamics are the major factors for different stiction values. For a drive motor with back-cogging, the back-cogging acceleration also affects the measured stiction value. If these effects are considered properly, good correlation is obtained among various types of CSS testers.
Presented at the 53rd Annual Meeting in Detroit, Michigan May 17–21, 1998
Notes
Presented at the 53rd Annual Meeting in Detroit, Michigan May 17–21, 1998