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dc.contributor.authorChang, Cheng-Yangen_US
dc.contributor.authorChen, Tsung-Linen_US
dc.date.accessioned2019-04-03T06:41:15Z-
dc.date.available2019-04-03T06:41:15Z-
dc.date.issued2017-11-01en_US
dc.identifier.issn1424-8220en_US
dc.identifier.urihttp://dx.doi.org/10.3390/s17112505en_US
dc.identifier.urihttp://hdl.handle.net/11536/144161-
dc.description.abstractConventional gyroscopes are equipped with a single-axis control input, limiting their performance. Although researchers have proposed control algorithms with dual-axis control inputs to improve gyroscope performance, most have verified the control algorithms through numerical simulations because they lacked practical devices with dual-axis control inputs. The aim of this study was to design a piezoelectric gyroscope equipped with a dual-axis control input so that researchers may experimentally verify those control algorithms in future. Designing a piezoelectric gyroscope with a dual-axis control input is more difficult than designing a conventional gyroscope because the control input must be effective over a broad frequency range to compensate for imperfections, and the multiple mode shapes in flexural deformations complicate the relation between flexural deformation and the proof mass position. This study solved these problems by using a lead zirconate titanate (PZT) material, introducing additional electrodes for shielding, developing an optimal electrode pattern, and performing calibrations of undesired couplings. The results indicated that the fabricated device could be operated at 5.5 +/- 1 kHz to perform dual-axis actuations and position measurements. The calibration of the fabricated device was completed by system identifications of a new dynamic model including gyroscopic motions, electromechanical coupling, mechanical coupling, electrostatic coupling, and capacitive output impedance. Finally, without the assistance of control algorithms, the open loop sensitivity of the fabricated gyroscope was 1.82 V/deg/s with a nonlinearity of 9.5% full-scale output. This sensitivity is comparable with those of other PZT gyroscopes with single-axis control inputs.en_US
dc.language.isoen_USen_US
dc.subjectcross-axis couplingen_US
dc.subjectdual-axis control inputen_US
dc.subjectelectrical feedthroughen_US
dc.subjectpiezoelectric actuationen_US
dc.subjectpiezoelectric gyroscopeen_US
dc.subjectpiezoelectric position sensingen_US
dc.subjectquadrature erroren_US
dc.titleDesign, Fabrication, and Modeling of a Novel Dual-Axis Control Input PZT Gyroscopeen_US
dc.typeArticleen_US
dc.identifier.doi10.3390/s17112505en_US
dc.identifier.journalSENSORSen_US
dc.citation.volume17en_US
dc.citation.issue11en_US
dc.citation.spage0en_US
dc.citation.epage0en_US
dc.contributor.department機械工程學系zh_TW
dc.contributor.departmentDepartment of Mechanical Engineeringen_US
dc.identifier.wosnumberWOS:000416790500067en_US
dc.citation.woscount0en_US
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