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A Study of the Temperature Characteristics of Vibration Mode Axes for Vibratory Cylinder Gyroscopes

The zero bias stability, which is an important performance parameter for vibratory cylinder gyroscopes, is high sensitive to temperature change. It is considered that the varying temperature makes the vibration mode axes unstable, which has significant influence on the zero bias stability. This pape...

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Detalles Bibliográficos
Autores principales: Wu, Yulie, Xi, Xiang, Tao, Yi, Wu, Xiaomei, Wu, Xuezhong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Molecular Diversity Preservation International (MDPI) 2011
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3231702/
https://www.ncbi.nlm.nih.gov/pubmed/22164038
http://dx.doi.org/10.3390/s110807665
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author Wu, Yulie
Xi, Xiang
Tao, Yi
Wu, Xiaomei
Wu, Xuezhong
author_facet Wu, Yulie
Xi, Xiang
Tao, Yi
Wu, Xiaomei
Wu, Xuezhong
author_sort Wu, Yulie
collection PubMed
description The zero bias stability, which is an important performance parameter for vibratory cylinder gyroscopes, is high sensitive to temperature change. It is considered that the varying temperature makes the vibration mode axes unstable, which has significant influence on the zero bias stability. This paper will investigate this problem in detail. First, the relationships between the angular positions of vibration mode axes and the zero bias are analyzed. Secondly, the thermal-modal model of the cylinder resonator with several defects such as mass imbalance, frequency split (FS), and geometry errors are developed by ANSYS. Simulation results show that with the increase of temperature, angular positions of the vibration mode axes obviously change, which leads to a dramatic zero bias drift. Finally, several major influence factors on the angular position stability of vibration mode axes, including frequency split, geometry errors, thermal elastic modulus coefficient (TEMC) and thermal expansion coefficient (TEC) are analyzed in detail. Simulation results in this paper will be helpful for deep understanding of the drift principle of zero bias induced by temperature for vibratory cylinder gyroscopes and also be helpful for further temperature compensation or control.
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spelling pubmed-32317022011-12-07 A Study of the Temperature Characteristics of Vibration Mode Axes for Vibratory Cylinder Gyroscopes Wu, Yulie Xi, Xiang Tao, Yi Wu, Xiaomei Wu, Xuezhong Sensors (Basel) Article The zero bias stability, which is an important performance parameter for vibratory cylinder gyroscopes, is high sensitive to temperature change. It is considered that the varying temperature makes the vibration mode axes unstable, which has significant influence on the zero bias stability. This paper will investigate this problem in detail. First, the relationships between the angular positions of vibration mode axes and the zero bias are analyzed. Secondly, the thermal-modal model of the cylinder resonator with several defects such as mass imbalance, frequency split (FS), and geometry errors are developed by ANSYS. Simulation results show that with the increase of temperature, angular positions of the vibration mode axes obviously change, which leads to a dramatic zero bias drift. Finally, several major influence factors on the angular position stability of vibration mode axes, including frequency split, geometry errors, thermal elastic modulus coefficient (TEMC) and thermal expansion coefficient (TEC) are analyzed in detail. Simulation results in this paper will be helpful for deep understanding of the drift principle of zero bias induced by temperature for vibratory cylinder gyroscopes and also be helpful for further temperature compensation or control. Molecular Diversity Preservation International (MDPI) 2011-08-04 /pmc/articles/PMC3231702/ /pubmed/22164038 http://dx.doi.org/10.3390/s110807665 Text en © 2011 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).
spellingShingle Article
Wu, Yulie
Xi, Xiang
Tao, Yi
Wu, Xiaomei
Wu, Xuezhong
A Study of the Temperature Characteristics of Vibration Mode Axes for Vibratory Cylinder Gyroscopes
title A Study of the Temperature Characteristics of Vibration Mode Axes for Vibratory Cylinder Gyroscopes
title_full A Study of the Temperature Characteristics of Vibration Mode Axes for Vibratory Cylinder Gyroscopes
title_fullStr A Study of the Temperature Characteristics of Vibration Mode Axes for Vibratory Cylinder Gyroscopes
title_full_unstemmed A Study of the Temperature Characteristics of Vibration Mode Axes for Vibratory Cylinder Gyroscopes
title_short A Study of the Temperature Characteristics of Vibration Mode Axes for Vibratory Cylinder Gyroscopes
title_sort study of the temperature characteristics of vibration mode axes for vibratory cylinder gyroscopes
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3231702/
https://www.ncbi.nlm.nih.gov/pubmed/22164038
http://dx.doi.org/10.3390/s110807665
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