Newly Designed Slider-Based Micro-Actuator for Magnetic Disk Drive
A novel slider-based micro-actuator for magnetic disk drive was designed and fabricated to improve the magnetic head positioning accuracy. The micro-actuator consists of a head slider, an actuator base, flexible hinge elements, and a pair of unimorph actuators which has piezo-electric transducers an...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
The Japan Society of Mechanical Engineers
2011-04-01
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| Series: | Journal of Advanced Mechanical Design, Systems, and Manufacturing |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/jamdsm/5/1/5_1_45/_pdf/-char/en |
| _version_ | 1828763277601013760 |
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| author | Yusuke NOJIMA Shinji KOGANEZAWA |
| author_facet | Yusuke NOJIMA Shinji KOGANEZAWA |
| author_sort | Yusuke NOJIMA |
| collection | DOAJ |
| description | A novel slider-based micro-actuator for magnetic disk drive was designed and fabricated to improve the magnetic head positioning accuracy. The micro-actuator consists of a head slider, an actuator base, flexible hinge elements, and a pair of unimorph actuators which has piezo-electric transducers and actuator arms as components. The slider body is able to rotate around the center of mass, and the movable end of the actuator arms are contacted but not fixed to the slider body, so the arms won't constrain the slider rotation and results to a large stroke. The actuator arms are actuated by piezo-electic transducers to apply a rotation torque to the slider. The stroke of 0.16µm peak-to-peak was obtained under a drive voltage of +/-20V and the frequency response of the slider tip excited by the piezo-electric actuators was fairly well, with slider sway mode frequency of 21.8kHz. The evaluation results showed the micro-actuator is able to improve the servo bandwidth, implemented in the disk drive in the future. |
| first_indexed | 2024-12-11T01:57:11Z |
| format | Article |
| id | doaj.art-07ba1448ce7341da811fb5f8d0747972 |
| institution | Directory Open Access Journal |
| issn | 1881-3054 |
| language | English |
| last_indexed | 2024-12-11T01:57:11Z |
| publishDate | 2011-04-01 |
| publisher | The Japan Society of Mechanical Engineers |
| record_format | Article |
| series | Journal of Advanced Mechanical Design, Systems, and Manufacturing |
| spelling | doaj.art-07ba1448ce7341da811fb5f8d07479722022-12-22T01:24:34ZengThe Japan Society of Mechanical EngineersJournal of Advanced Mechanical Design, Systems, and Manufacturing1881-30542011-04-0151455310.1299/jamdsm.5.45jamdsmNewly Designed Slider-Based Micro-Actuator for Magnetic Disk DriveYusuke NOJIMA0Shinji KOGANEZAWA1Storage Device Development Department, Toshiba Storage Device CorporationStorage Device Development Department, Toshiba Storage Device CorporationA novel slider-based micro-actuator for magnetic disk drive was designed and fabricated to improve the magnetic head positioning accuracy. The micro-actuator consists of a head slider, an actuator base, flexible hinge elements, and a pair of unimorph actuators which has piezo-electric transducers and actuator arms as components. The slider body is able to rotate around the center of mass, and the movable end of the actuator arms are contacted but not fixed to the slider body, so the arms won't constrain the slider rotation and results to a large stroke. The actuator arms are actuated by piezo-electic transducers to apply a rotation torque to the slider. The stroke of 0.16µm peak-to-peak was obtained under a drive voltage of +/-20V and the frequency response of the slider tip excited by the piezo-electric actuators was fairly well, with slider sway mode frequency of 21.8kHz. The evaluation results showed the micro-actuator is able to improve the servo bandwidth, implemented in the disk drive in the future.https://www.jstage.jst.go.jp/article/jamdsm/5/1/5_1_45/_pdf/-char/enmagnetic disk drivedual-stage servomicro-actuatorhead trackingpiezo-electric actuatorcontact stiffness |
| spellingShingle | Yusuke NOJIMA Shinji KOGANEZAWA Newly Designed Slider-Based Micro-Actuator for Magnetic Disk Drive Journal of Advanced Mechanical Design, Systems, and Manufacturing magnetic disk drive dual-stage servo micro-actuator head tracking piezo-electric actuator contact stiffness |
| title | Newly Designed Slider-Based Micro-Actuator for Magnetic Disk Drive |
| title_full | Newly Designed Slider-Based Micro-Actuator for Magnetic Disk Drive |
| title_fullStr | Newly Designed Slider-Based Micro-Actuator for Magnetic Disk Drive |
| title_full_unstemmed | Newly Designed Slider-Based Micro-Actuator for Magnetic Disk Drive |
| title_short | Newly Designed Slider-Based Micro-Actuator for Magnetic Disk Drive |
| title_sort | newly designed slider based micro actuator for magnetic disk drive |
| topic | magnetic disk drive dual-stage servo micro-actuator head tracking piezo-electric actuator contact stiffness |
| url | https://www.jstage.jst.go.jp/article/jamdsm/5/1/5_1_45/_pdf/-char/en |
| work_keys_str_mv | AT yusukenojima newlydesignedsliderbasedmicroactuatorformagneticdiskdrive AT shinjikoganezawa newlydesignedsliderbasedmicroactuatorformagneticdiskdrive |