TITLE

Micro-machined Gyroscope Mathematical Model and Error Analysis

AUTHOR(S)
Miaowen Deng; Bing Mo; Chaodong Ling; Ronghai Huang; Suki Kim
PUB. DATE
August 2014
SOURCE
Key Engineering Materials;2014, Vol. 609-610, p1144
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The micro-machined gyroscope that uses Coriolis force to measure angular velocity has non-linear error, which makes the amplitude of angular velocity have a relationship with its frequency, and fabrication technology error, which leads gyroscope's drive shaft and detection shaft not to be vertical. All kinds of errors severely restrict this kind of gyroscope's measuring accuracy and application range. This article obtained the reason for the formation of all kind of gyroscope's errors and their mathematical expressions through analyzing the principle of micromachined gyroscope, which uses Coriolis force to measure angular velocity. At the same time, the gyroscope mathematical model was established and used to emulate to analyze each error's influence on the angular velocity measured by gyroscope. The conclusion obtained by theoretical analysis and simulation provides the basis for gyroscope's error analysis and elimination, and it has an important significance in improving the measuring accuracy of gyroscope.
ACCESSION #
95544277

 

Related Articles

  • Complete harmonic force field for benzene ground state in-plane vibrations. Ozkabak, Ali G.; Goodman, Lionel; Thakur, Surya N.; Krogh-Jespersen, Karsten // Journal of Chemical Physics;12/1/1985, Vol. 83 Issue 11, p6047 

    Discusses an accuracy force field for the in-plane vibrations where all contributing valence coordinate force constants have been derived from experimental vibrational frequencies and Coriolis interaction constants using the Wilson F-G matrix method. Impact of high resolution techniques on...

  • Rate Sensor Measures Angular Velocity In Harsh Environments.  // Sensors;7/7/2014, p1 

    The article offers brief information on Model 620 angular rate sensor from Measurement Specialties Inc.

  • Characterization of the Bell-Shaped Vibratory Angular Rate Gyro. Ning Liu; Zhong Su; Qing Li; Mengyin Fu; Hong Liu; Junfang Fan // Sensors (14248220);Aug2013, Vol. 13 Issue 8, p10123 

    The bell-shaped vibratory angular rate gyro (abbreviated as BVG) is a novel shell vibratory gyroscope, which is inspired by the Chinese traditional bell. It sensitizes angular velocity through the standing wave precession effect. The bell-shaped resonator is a core component of the BVG and looks...

  • Design of the Digital in Signal Processing Platform of the Gyroscope Based On FPGA. Wang Di; Zhou Jiajun; Chen Song; Yao Ying; Yin Liang; Liu Xiaowei // Key Engineering Materials;2014, Vol. 609-610, p903 

    Gyroscope is a sensor that measure angular velocity which is widely used in various fields. The analog processing technology of Gyro-signal is very mature, but due to the noise and other shortcomings of the analog circuit, the development of micro-mechanical gyroscope is limited. Digital...

  • Analytic Error Assessment of Gyro-Free INS. Klein, Itzik // Journal of Applied Geodesy;Mar2015, Vol. 9 Issue 1, p49 

    Agyro-free INS consists of at least six distributed accelerometers capable of obtaining linear and angular acceleration and thereby capable of functioning as a conventional INS. Most of the research in the gyro-free field focused on seeking optimal accelerometer configurations and less attention...

  • High-Q microsphere resonators for angular velocity sensing in gyroscopes. Panlong An; Yongqiu Zheng; Shubin Yan; Chenyang Xue; Wanjun Wang; Jun Liu // Applied Physics Letters;2/9/2015, Vol. 106 Issue 6, p1 

    A resonator gyroscope based on the Sagnac effect is proposed using a core unit that is generated by water-hydrogen flame melting. The relationship between the quality factor Q and diameter D is revealed. The Q factor of the spectral lines of the microsphere cavity coupling system, which uses...

  • Vibrating Coriolis rate gyros.  // Electronics Weekly;3/2/2011, Issue 2458, p6 

    The article presents an explanation on the working of vibrating Coriolis rate gyros.

  • Enhancing the closed-loop stability of a high-Q polysilicon micro-hemispherical resonating gyroscope. Wan, Quan; Chen, Fang; Xu, Dacheng; Guo, Shuwen; Li, Xinxin // AIP Advances;Feb2019, Vol. 9 Issue 2, pN.PAG 

    This paper presents an enhanced stability strategy for the sense mode of a force-rebalanced closed-loop polysilicon micro-hemispherical resonating gyroscope (μHRG) with a high-Q quality-factor value (15.2k). The sense mode closed-loop control including the Coriolis force and quadrature error...

  • A Z-Axis Quartz Cross-Fork Micromachined Gyroscope Based on Shear Stress Detection. Liqiang Xie; Xuezhong Wu; Shengyi Li; Haoxu Wang; Jianbin Su; Peitao Dong // Sensors (14248220);2010, Vol. 10 Issue 3, p1573 

    Here we propose a novel quartz micromachined gyroscope. The sensor has a simple cross-fork structure in the x-y plane of quartz crystal. Shear stress rather than normal stress is utilized to sense Coriolis' force generated by the input angular rate signal. Compared to traditional quartz...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics