NDLI: Drive level slider-suspension vibration analysis and its application to a ramp-load magnetic disk drive

Content Provider	IEEE Xplore Digital Library
Author	Ta-Chang Fu Bogy, D.B.
Copyright Year	1965
Abstract	An experimental method employing a piezoelectric transducer and a dual channel laser Doppler vibrometer (LDV) is presented, that is capable of vibration analysis of the slider-suspension assembly in a production disk drive with minor modification. We then apply this method to a ramp-load disk drive to investigate the radial acceleration effect on slider dynamics at the beginning of radial loading motion while the suspension arm moves along the ramp structure. The results show that the slider's motion in the roll and vertical directions are strongly coupled by the radial vibration of the suspension, and that the radial acceleration at the beginning of the radial loading motion has only negligible effect on the parameters determining slider-disk contact. These parameters are the pitch, roll and loading velocities of the slider at the establishment of the air bearing, and they can be measured by the LDV during the ramp loading process by fixing the actuator and actuating the disk drive.
Sponsorship	IEEE Magnetics Society
Starting Page	3003
Ending Page	3005
Page Count	3
File Size	371099
File Format	PDF
ISSN	00189464
Volume Number	31
Issue Number	6
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1995-11-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Magnetic analysis Disk drives Acceleration Transducers Motion measurement Vibrations Pneumatic actuators Laser beams Steel Position measurement
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

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