A 5.86 Million Quality Factor Cylindrical Resonator with Improved Structural Design Based on Thermoelastic Dissipation Analysis

The cylindrical resonator is the core component of cylindrical resonator gyroscopes (CRGs). The quality factor (Q factor) of the resonator is one crucial parameter that determines the performance of the gyroscope. In this paper, the finite element method is used to theoretically investigate the infl...

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Autores principales: Zeng, Libin, Luo, Yiming, Pan, Yao, Jia, Yonglei, Liu, Jianping, Tan, Zhongqi, Yang, Kaiyong, Luo, Hui
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Letter
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7660201/
https://www.ncbi.nlm.nih.gov/pubmed/33105911
http://dx.doi.org/10.3390/s20216003
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author Zeng, Libin
Luo, Yiming
Pan, Yao
Jia, Yonglei
Liu, Jianping
Tan, Zhongqi
Yang, Kaiyong
Luo, Hui
author_facet Zeng, Libin
Luo, Yiming
Pan, Yao
Jia, Yonglei
Liu, Jianping
Tan, Zhongqi
Yang, Kaiyong
Luo, Hui
author_sort Zeng, Libin
collection PubMed
description The cylindrical resonator is the core component of cylindrical resonator gyroscopes (CRGs). The quality factor (Q factor) of the resonator is one crucial parameter that determines the performance of the gyroscope. In this paper, the finite element method is used to theoretically investigate the influence of the thermoelastic dissipation (TED) of the cylindrical resonator. The improved structure of a fused silica cylindrical resonator is then demonstrated. Compared with the traditional structure, the thermoelastic Q (Q(TED)) of the resonator is increased by 122%. In addition, the Q factor of the improved cylindrical resonator is measured, and results illustrate that, after annealing and chemical etching, the Q factor of the resonator is significantly higher than that of the cylindrical resonators reported previously. The Q factor of the cylindrical resonator in this paper reaches 5.86 million, which is the highest value for a cylindrical resonator to date.
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spelling pubmed-76602012020-11-13 A 5.86 Million Quality Factor Cylindrical Resonator with Improved Structural Design Based on Thermoelastic Dissipation Analysis Zeng, Libin Luo, Yiming Pan, Yao Jia, Yonglei Liu, Jianping Tan, Zhongqi Yang, Kaiyong Luo, Hui Sensors (Basel) Letter The cylindrical resonator is the core component of cylindrical resonator gyroscopes (CRGs). The quality factor (Q factor) of the resonator is one crucial parameter that determines the performance of the gyroscope. In this paper, the finite element method is used to theoretically investigate the influence of the thermoelastic dissipation (TED) of the cylindrical resonator. The improved structure of a fused silica cylindrical resonator is then demonstrated. Compared with the traditional structure, the thermoelastic Q (Q(TED)) of the resonator is increased by 122%. In addition, the Q factor of the improved cylindrical resonator is measured, and results illustrate that, after annealing and chemical etching, the Q factor of the resonator is significantly higher than that of the cylindrical resonators reported previously. The Q factor of the cylindrical resonator in this paper reaches 5.86 million, which is the highest value for a cylindrical resonator to date. MDPI 2020-10-22 /pmc/articles/PMC7660201/ /pubmed/33105911 http://dx.doi.org/10.3390/s20216003 Text en © 2020 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 (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Letter
Zeng, Libin
Luo, Yiming
Pan, Yao
Jia, Yonglei
Liu, Jianping
Tan, Zhongqi
Yang, Kaiyong
Luo, Hui
A 5.86 Million Quality Factor Cylindrical Resonator with Improved Structural Design Based on Thermoelastic Dissipation Analysis
title A 5.86 Million Quality Factor Cylindrical Resonator with Improved Structural Design Based on Thermoelastic Dissipation Analysis
title_full A 5.86 Million Quality Factor Cylindrical Resonator with Improved Structural Design Based on Thermoelastic Dissipation Analysis
title_fullStr A 5.86 Million Quality Factor Cylindrical Resonator with Improved Structural Design Based on Thermoelastic Dissipation Analysis
title_full_unstemmed A 5.86 Million Quality Factor Cylindrical Resonator with Improved Structural Design Based on Thermoelastic Dissipation Analysis
title_short A 5.86 Million Quality Factor Cylindrical Resonator with Improved Structural Design Based on Thermoelastic Dissipation Analysis
title_sort 5.86 million quality factor cylindrical resonator with improved structural design based on thermoelastic dissipation analysis
topic Letter
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7660201/
https://www.ncbi.nlm.nih.gov/pubmed/33105911
http://dx.doi.org/10.3390/s20216003
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