Results 21 to 30 of about 119 (80)

Research on the Precession Characteristics of Hemispherical Resonator Gyro

Complexity, Volume 2021, Issue 1, 2021., 2021
Hemispherical Resonator Gyro (HRG) is a new type gyro with high precision, high reliability, shock resistance, no need of preheating, short start time, and long life. It is a kind of vibrating gyro with standing wave rotating along the sensitive base of annular precession, has a unique application prospect in the field of high precision inertial ...
Li-Jun Song, Rui Yang, Wang-Liang Zhao, Xing He, Shaoliang Li, You-Jun Ding, Ning Wang   +6 more
wiley   +1 more source

The control algorithm of whole angle mode for HRG based on the vector composition

EURASIP Journal on Wireless Communications and Networking, 2021
The Hemispherical Resonator Gyroscope (HRG) has many advantages such as high precision, high reliability and long life-time, it is widely used in the space-launcher and the satellites.
Wanliang Zhao, Yuxiang Cheng, Shaoliang Li, Lijun Song   +3 more
doaj   +1 more source

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   +1 more source

Modeling of Acceleration Influence on Hemispherical Resonator Gyro Forcing System

Mathematical Problems in Engineering, Volume 2015, Issue 1, 2015., 2015
Acceleration adds negative effect to Hemispherical Resonator Gyro (HRG) output; therefore, it is important to model the influence and then make necessary compensations, accordingly. Based on the elastic thin‐shell theory under the Kirchhoff‐Love assumption, the acceleration influence on HRG forcing system is modeled and then schemes for incentive are ...
Guoxing Yi, Yangguang Xie, Ziyang Qi, Boqi Xi, Minrui Fei   +4 more
wiley   +1 more source

Model Design of Piezoelectric Micromachined Modal Gyroscope

Journal of Sensors, Volume 2011, Issue 1, 2011., 2011
This paper reports a novel kind of solid‐state microgyroscope, which is called piezoelectric micromachined modal gyroscope (PMMG). PMMG has large stiffness and robust resistance to shake and strike because there is no evident mass‐spring component in its structure.
Xiaojun Hu, Xiaosheng Wu, Zheng Wang, Wenyuan Chen, Weiping Zhang, Andrea Cusano   +5 more
wiley   +1 more source

Joint compensation of time delay and damping asymmetry errors for whole-angle hemispherical resonator gyroscopes [PDF]

AIP Advances
In whole-angle mode hemispherical resonator gyroscope (HRG) systems, time delay and damping asymmetry are critical factors affecting measurement accuracy and long-term stability.
Ruizhao Cheng, Gongliu Yang, Qingzhong Cai, Yuyi Yao, Yongqiang Tu   +4 more
doaj   +1 more source

Research on Bell-Shaped Vibratory Angular Rate Gyro’s Character of Resonator

Sensors, 2013
Bell-shaped vibratory angular rate gyro (abbreviated as BVG) is a new type Coriolis vibratory gyro that was inspired by Chinese traditional clocks. The resonator fuses based on a variable thickness axisymmetric multicurved surface shell.
Hong Liu, Ning Liu, Mengyin Fu, Qing Li, Zhong Su   +4 more
doaj   +1 more source

High-Precision Simulation Analysis of Modal Characteristic Parameters of Hemispherical Resonator

Applied Sciences
As a high-precision inertial device, the hemispherical resonant gyroscope (HRG) has found widespread application in critical domains including aerospace and tactical weapons, owing to its advantages of high precision, simple structure, and long service ...
Yuqian Zhao, Qingheng Liu, Junfeng Liu, Wenhui Chen, Nan Huang   +4 more
doaj   +1 more source

Identification and Compensation of Detection Gain Asymmetry Errors for Hemispherical Resonant Gyroscopes in Whole-Angle Mode

Actuators
Detection gain asymmetry error is one of the primary errors of the hemispherical resonator gyroscope (HRG) in whole-angle (WA) mode. This paper analyzes the influence of detection gain asymmetry error and its coupling error with damping and stiffness ...
Ruizhao Cheng, Gongliu Yang, Qingzhong Cai, Xiaodi Yi, Yongqiang Tu   +4 more
doaj   +1 more source

OPTIMIZATION OF HEMISPHERICAL RESONATOR GYROSCOPE STANDING WAVE PARAMETERS

Научный вестник МГТУ ГА, 2017
Traditionally, the problem of autonomous navigation is solved by dead reckoning navigation flight parameters (NFP) of the aircraft (AC). With increasing requirements to accuracy of definition NFP improved the sensors of the primary navigation information:
O. S. Khalyutina
doaj