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Displacement Amplification

IP.com Disclosure Number: IPCOM000036880D
Original Publication Date: 1989-Nov-01
Included in the Prior Art Database: 2005-Jan-29

Publishing Venue

IBM

Related People

Authors:
DeHillerin, CA Knappe, LF Mallett, BM Malueg, DH Mosbrucker, JM Ross, MJ [+details]

Abstract

This displacement amplification method reduces the amount of torque that a spindle motor in a disk drive must provide directly to start the spindle. The method employs the excitation of one or more mechanical resonance(s) of the disk drive structure in such a manner as to cause increased displacement at the head-to-disk interface, breaking the heads loose from the disk and reducing the amount of torque required from the motor.