Results 11 to 20 of about 158 (104)

Standing Wave Binding of Hemispherical Resonator Containing First–Third Harmonics of Mass Imperfection under Linear Vibration Excitation

Sensors, 2020
Due to complicated processing technology, the mass distribution of a hemispherical resonator made of fused silica is not uniform, which can affect the azimuth of the standing wave of a resonator under the linear vibration excitation.
Yan Huo, Shunqing Ren, Zhennan Wei, Guoxing Yi   +3 more
doaj   +2 more sources

The Synthesis Model of Flat-Electrode Hemispherical Resonator Gyro

Sensors, 2019
The Hemispherical Resonator Gyro (HRG) is a solid-state and widely used vibrating gyroscope, especially in the field of deep space exploration. The flat-electrode HRG is a new promising type of gyroscope with simpler structure that is easier to be ...
Zhennan Wei, Guoxing Yi, Yan Huo, Ziyang Qi, Zeyuan Xu   +4 more
doaj   +2 more sources

Design and Optimization of Hemispherical Resonators Based on PSO-BP and NSGA-II

Micromachines, 2023
Although one of the poster children of high-performance MEMS (Micro Electro Mechanical Systems) gyroscopes, the MEMS hemispherical resonator gyroscope (HRG) is faced with the barrier of technical and process limits, which makes it unable to form a ...
Jinghao Liu, Pinghua Li, Xuye Zhuang, Yunlong Sheng, Qi Qiao, Mingchen Lv, Zhongfeng Gao, Jialuo Liao   +7 more
doaj   +2 more sources

Comprehensive Performance-Oriented Multi-Objective Optimization of Hemispherical Resonator Structural Parameters

Micromachines
The hemispherical resonant gyroscope is the highest-precision solid-state vibration gyroscope, widely applied in aviation, aerospace, marine, and other navigation fields.
Xiaohao Liu, Xin Jin, Chaojiang Li, Yumeng Ma, Deshan Xu, Simin Guo   +5 more
doaj   +2 more sources

Damping Asymmetry Trimming Based on the Resistance Heat Dissipation for Coriolis Vibratory Gyroscope in Whole-Angle Mode

Micromachines, 2020
Damping asymmetry is one of the most important factors that determines the performance of Coriolis Vibratory Gyroscope. In this paper, a novel damping tuning method for the resonator with parallel plate capacitors is presented. This damping tuning method
Kechen Guo, Yulie Wu, Yongmeng Zhang, Jiangkun Sun, Dingbang Xiao, Xuezhong Wu   +5 more
doaj   +2 more sources

Geometric Error Analysis and Compensation in Spherical Generating Grinding of Hemispherical Shell Resonators

Micromachines, 2022
The geometric accuracy of a hemispherical shell resonator (HSR) affects the assembly accuracy and final performance of a hemispherical resonant gyroscope in many ways.
Yu Wang, Chaoliang Guan, Yifan Dai, Shuai Xue   +3 more
doaj   +2 more sources

The Influence of Nonlinear High-Intensity Dynamic Processes on the Standing Wave Precession of a Non-Ideal Hemispherical Resonator

Sensors
The properties of small size, low noise, high performance and no wear-out have made the hemispherical resonator gyroscope a good choice for high-value space missions. To enhance the precision of the hemispherical resonator gyroscope for use in tasks with
Wei Cheng, Shunqing Ren, Boqi Xi, Zhen Tian, Youhuan Ning, Yan Huo   +5 more
doaj   +2 more sources

Optomechanical Gyroscope Based on Micro-Hemispherical Shell and Optical Ring Resonators

IEEE Photonics Journal
Silicon photonic integrated circuits and micro-electro-mechanical systems enable the design of compact, high-performance micro-opto-electro-mechanical systems (MOEMS) gyroscopes, such as recently reported optomechanical gyroscopes.
Jamal N. A. Hassan, Wenyi Huang, Maoyuan Wang, Senyu Zhang, Guangjun Wen, Yongjun Huang   +5 more
doaj   +2 more sources

Decreasing Frequency Splits of Hemispherical Resonators by Chemical Etching

Sensors, 2018
The hemispherical resonator gyroscope (HRG) has attracted the interest of the world inertial navigation community because of its exceptional performance, ultra-high reliability and its potential to be miniaturized.
Yuting Wang, Yao Pan, Tianliang Qu, Yonglei Jia, Kaiyong Yang, Hui Luo   +5 more
doaj   +2 more sources

Temperature Drift Compensation for Hemispherical Resonator Gyro Based on Natural Frequency

Sensors, 2012
Temperature changes have a strong effect on Hemispherical Resonator Gyro (HRG) output; therefore, it is of vital importance to observe their influence and then make necessary compensations. In this paper, a temperature compensation model for HRG based on
Bing Luo, Qingan Jiang, Yun Li, Zhen Fang, Wenqi Wu, Xu Wang   +5 more
doaj   +2 more sources