Please use this identifier to cite or link to this item: https://doi.org/10.4028/www.scientific.net/AMR.875-877.708
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dc.titleHysteresis analysis of high precision PZT actuator in dual-stage hard disk drive
dc.contributor.authorRahman, M.A.
dc.contributor.authorAl Mamun, A.
dc.contributor.authorLei, Z.
dc.date.accessioned2014-10-07T04:45:26Z
dc.date.available2014-10-07T04:45:26Z
dc.date.issued2014
dc.identifier.citationRahman, M.A., Al Mamun, A., Lei, Z. (2014). Hysteresis analysis of high precision PZT actuator in dual-stage hard disk drive. Advanced Materials Research 875-877 : 708-714. ScholarBank@NUS Repository. https://doi.org/10.4028/www.scientific.net/AMR.875-877.708
dc.identifier.isbn9783037859933
dc.identifier.issn10226680
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/83809
dc.description.abstractIn Hard disk drive (HDD) industry, the demand for faster HDD with higher storage capacities had led to the use of a dual-stage servo system with a high precision PZT actuator. However, the PZT actuator is made of piezoelectric material which exhibits hysteresis. Hysteresis causes inaccuracies and oscillations in the system responses. In this paper, the hysteresis behavior is examined for a new high resolution (a few nanometers) PZT actuator fabricated for dual stage actuator. The new PZT actuator has the first resonance at a frequency twenty times higher than the first resonant mode of PZT actuator used at present in HDD. A generalized Prandtl-Ishlinskii (GPI) model is obtained by using curve-fitting with the examined hysteresis behavior. Then the inverse of the GPI model is extracted which can be used as the hysteresis compensator. Finally a model-free hysteresis compensator using adaptive Neural Network algorithm is being proposed for future research. © (2014) Trans Tech Publications, Switzerland.
dc.sourceScopus
dc.subjectGPI
dc.subjectHDD
dc.subjectHysteresis
dc.subjectInverse GPI
dc.subjectNeural network (NN)
dc.subjectPZT
dc.typeConference Paper
dc.contributor.departmentELECTRICAL & COMPUTER ENGINEERING
dc.description.doi10.4028/www.scientific.net/AMR.875-877.708
dc.description.sourcetitleAdvanced Materials Research
dc.description.volume875-877
dc.description.page708-714
dc.identifier.isiut000339412000131
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