Results 91 to 100 of about 274 (132)

A Novel Spring Disk Resonator Gyroscope for Maximizing Q/F

2021 IEEE International Symposium on Inertial Sensors and Systems (INERTIAL), 2021
This paper presents a novel spring disk resonator gyroscope (SRG). The SRG consists of coupled concentric serpentine spring-like rings to reduce mode stiffness while maintaining a device footprint the same as that of existing standard DRGs: 600um in diameter.
Janna Rodríguez, Yushi Yang
exaly   +3 more sources

Frequency Tuning of a Disk Resonator Gyroscope via Stiffness Perturbation

IEEE Sensors Journal, 2017
This paper introduces a utility algorithm to reduce the permanent frequency mismatch of the primary wineglass modes in a disk resonator gyroscope via stiffness perturbation. In this algorithm, each tuning electrode is regarded as two rows of radial springs with negative stiffness.
Dingbang Xiao, Ｘin Zhou, Zhanqiang Hou   +2 more
exaly   +3 more sources

Influences of the Structure Parameters on Sensitivity and Brownian Noise of the Disk Resonator Gyroscope

Journal of Microelectromechanical Systems, 2017
This paper presents a comprehensive investigation of the influences of the structure parameters on the sensitivity and Brownian noise of the disk resonator gyroscope (DRG). The mechanical sensitivity, transducer sensitivity, Brownian displacement, and Brownian noise floor of the DRG with varying structural parameters (including ring number, resonator ...
Ｘin Zhou, Dingbang Xiao, Zhanqiang Hou   +2 more
exaly   +3 more sources

Epitaxially-encapsulated polysilicon disk resonator gyroscope

2013 IEEE 26th International Conference on Micro Electro Mechanical Systems (MEMS), 2013
We present a 0.6 mm diameter, 20 μm thick epitaxially-sealed polysilicon disk resonator gyro (DRG). High Q (50,000) combined with electrostatic mode-matching and closed-loop quadrature null performed by dedicated electrode sets enables a scale-factor of 0.286 mV/(°/s) and Angle Random Walk (ARW) of 0.006 (°/s)/√Hz.
S. Nitzan, C. H. Ahn, T.-H. Su, M. Li, E. J. Ng, S. Wang, Z. M. Yang, G. O'Brien, B. E. Boser, T. W. Kenny, D. A. Horsley   +10 more
core   +3 more sources

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Frequency Symmetry Comparison of Cobweb-Like Disk Resonator Gyroscope With Ring-Like Disk Resonator Gyroscope

IEEE Electron Device Letters, 2019
Frequency symmetry of a cobweb-like disk resonator gyroscope (CDRG) has been compared with a conventional ring-like disk resonant gyroscope (RDRG) in this letter to corroborate that linear beam structures have a better process tolerance than curved beam structures for micro-fabrication processes. The CDRG comprises multiple concentric cobweb-like rings
Bo Fan, Shuwen Guo, Feng Bu
exaly   +3 more sources

Honeycomb-Like Disk Resonator Gyroscope

IEEE Sensors Journal, 2020
In this paper, we report a novel honeycomb-like disk resonator gyroscope (HDRG) and its comprehensive test results. HDRG inherits many advantages from traditional nested-ring disk resonator such as axisymmetric structure and huge capacitive area. In addition, HDRG owns unique characteristics and potentials due to its topology structure, namely, higher ...
Yi Xu, Qingsong Li, Yongmeng Zhang
exaly   +3 more sources

Vibrational Energy Loss Analysis of a MEMS Disk Resonator Gyroscope

2018 IEEE/ASME International Conference on Advanced Intelligent Mechatronics (AIM), 2018
In this paper, we design and fabricated a low vibrational energy loss MEMS Disk Resonator Gyroscope. For the conventional turning fork micromachined gyroscope, the anchor loss is the primary form of energy loss, but for the MEMS Disk Resonator Gyroscope, the anchor loss can be ignored because of its center supported structure.
Jianbing Xie, Jin Yang
exaly   +2 more sources

Vibration modeling of disk resonator gyroscope by wave propagation

Journal of Sound and Vibration, 2019
Abstract This paper proposes an analytical vibration model of a disk resonator gyroscope (DRG) based on the wave propagation theory, which can predict the key specifications of a DRG rapidly and accurately before fabrication, and can be employed in design optimization.
Chen Lin, Zhichao Yao, Qi Fan
exaly   +2 more sources

Coherent Phonon Manipulation in a Disk Resonator Gyroscope with Internal Resonance

2020 IEEE International Symposium on Inertial Sensors and Systems (INERTIAL), 2020
The internal resonance and the Stokes pump are both typical representatives of the phonon manipulation in resonators, achieving modes’ dynamic coupling and energy transfer. The internal resonance can effectively improve resonators’ frequency stability, while the Stokes pump utilizes modal coupling to realize the amplification of the low-order mode’s ...
Kuo Lu, Xin Zhou, Qingsong Li, Xuezhong Wu, Dingbang Xiao   +4 more
openaire   +2 more sources

Thermoelastic quality-factor enhanced disk resonator gyroscope

2017 IEEE 30th International Conference on Micro Electro Mechanical Systems (MEMS), 2017
This paper proposes and demonstrates a novel method to greatly enhance the thermoelastic quality-factor (Q TED ) of disk resonator gyroscope (DRG) which is hanging lumped mass on the frame structure. This method could greatly reduce the resonant frequency f 0 whereas rarely affect the relaxation rate f Relax .
Xin Zhou, Dingbang Xiao, Zhanqiang Hou, Qingsong Li, Yulie Wu, Dechuan Yu, Wei Li, Xuezhong Wu   +7 more
openaire   +2 more sources