Research on Nonlinear Dynamics of Drive Mode in Z-Axis Silicon Microgyroscope
Joint Authors
Xu, Lu
Li, Hongsheng
Liu, Jia
Ni, Yunfang
Huang, Libin
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-08-11
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
A novel drive method is proposed to increase the vibration amplitude of drive mode of silicon vibratory gyroscopes based on the nonlinear dynamics research made in this paper.
A nonlinear dynamic equation, considering the nonlinear mechanical-elastic and electrostatic force, was firstly deduced according to the simplified structure schematic of drive mode.
Then, experiments were made to characterize the nonlinear amplitude-frequency response characteristic as well as its dependence on drive voltage.
Besides, by solving the nondimensional nonlinear dynamics using Matlab and Simulink, the influence of initial status of drive mode, that is, the displacement and the velocity, on the stable vibration amplitude was presented.
The amplitude-frequency characteristic was also analyzed by simulation.
The result of simulation shows good agreement with that of experiments.
When nonlinearity is present in the amplitude-frequency characteristic, there is a wide flat region with larger amplitude than the peak amplitude obtained in the linear characteristic.
Finally, a novel drive method was presented to excite the nonlinear vibration of large amplitude in the downwards-sweeping characteristic curve.
It is numerically proved that this merit can be utilized to enlarge the drive mode’s vibration amplitude so as to enhance silicon gyroscopes’ performance.
American Psychological Association (APA)
Xu, Lu& Li, Hongsheng& Liu, Jia& Ni, Yunfang& Huang, Libin. 2014. Research on Nonlinear Dynamics of Drive Mode in Z-Axis Silicon Microgyroscope. Journal of Sensors،Vol. 2014, no. 2014, pp.1-11.
https://search.emarefa.net/detail/BIM-1042979
Modern Language Association (MLA)
Xu, Lu…[et al.]. Research on Nonlinear Dynamics of Drive Mode in Z-Axis Silicon Microgyroscope. Journal of Sensors No. 2014 (2014), pp.1-11.
https://search.emarefa.net/detail/BIM-1042979
American Medical Association (AMA)
Xu, Lu& Li, Hongsheng& Liu, Jia& Ni, Yunfang& Huang, Libin. Research on Nonlinear Dynamics of Drive Mode in Z-Axis Silicon Microgyroscope. Journal of Sensors. 2014. Vol. 2014, no. 2014, pp.1-11.
https://search.emarefa.net/detail/BIM-1042979
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1042979