Micro electrostatic actuators in dual-stage disk drives with high track density

Tang, Y.; Chen, S.X.; Low, T.S.

doi:10.1109/20.539194

Cited by 14 publications

(3 citation statements)

References 2 publications

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“…The most common configurations are film motors [7][8][9][10], micromotors [11][12][13], linear inchworm motors [14][15], comb motors [16][17][18] and wobble motors [19][20]. These topologies are well known in the literature and their disadvantage is rather complex structure and sophisticated control.…”

Section: Introductionmentioning

confidence: 99%

Novel multilayer differential linear electrostatic motor

Tapuchi

Baimel

2014

2014 International Symposium on Power Electronics, Electrical Drives, Automation and Motion

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The paper proposes a new type of linear electrostatic motor operated on a principle of the electric field effect. The unique structure of the motor and the use of new dielectric materials with high electric permittivity significantly increase its generated force. The generated force is further increased by using several layers of capacitors. The proposed motor has advanced motion control options that allow precise control of velocity and position profiles. Moreover, the motor is insensitive to electro-magnetic fields and has reduced power losses due to the fact that there are no cupper and hysteresis losses. Extensive simulation results of the proposed motor at different operation modes are presented and analyzed. The simulation results demonstrate proposed control methods and show the practicability of the motor.

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Section: Introductionmentioning

confidence: 99%

Novel multilayer differential linear electrostatic motor

Tapuchi

Baimel

2014

2014 International Symposium on Power Electronics, Electrical Drives, Automation and Motion

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“…[6] A dual-stage actuator for high-density HDDs was presented, using a voice coil motor as a coarse actuator and a linear microelectrostatic actuator as a fine actuator. [7] Electromagnetic microactuators were fabricated using the state-of-the-art silicon micromachining techniques. [8] A highperformance moving-magnet rotary actuator was also developed for very low -profile magnetic disk drives.…”

Section: Introductionmentioning

confidence: 99%

Head–Disk Interfacial Behavior in Glide Tests for Manufacturing Hard Disks

Zhong

Zheng

2003

Materials and Manufacturing Processes

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This study was carried out to investigate the interfacial behavior of a glide head and a bump disk during the glide head calibration for glide tests. The glide test combined with a burnishing process is widely employed by the hard disk industry to test the smoothness of a disk surface. The bump avalanche test using a calibrated glide head and a bump disk results in the bump avalanche curve that graphically shows how the glide test system reacts with the precharacterized asperities (bumps). Experiments were performed to discover the fact that the avalanche point is affected by the Z-height and the tilting angle of the laser bumps on bump disks.

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“…It had a linear static displacement-voltage characteristic in a working range of 4 µm. The microactuator system could achieve a 10 kHz bandwidth [11].…”

Section: Introductionmentioning

confidence: 99%

A suspension integrated with a piezoelectric microactuator for dual stage actuation

Zhong

Sun

2004

Int J Adv Manuf Technol

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This paper presents a shear-mode piezoelectric microactuator that can be easily integrated with a suspension for dual stage actuation used in hard disk drives. The finite element method was employed to investigate the static and dynamic performance of the assembly using a simple cantilever suspension integrated with the microactuator. Experiments were also conducted to verify the numerical analysis results. A modern suspension integrated with the microactuator was then simulated based on the optimised structure of the actuator/suspension assembly, and the results showed that 1.17-µm tip stroke could be obtained while the driving voltage was only 20 V.

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Micro electrostatic actuators in dual-stage disk drives with high track density

Cited by 14 publications

References 2 publications

Novel multilayer differential linear electrostatic motor

Novel multilayer differential linear electrostatic motor

Head–Disk Interfacial Behavior in Glide Tests for Manufacturing Hard Disks

A suspension integrated with a piezoelectric microactuator for dual stage actuation

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