Dynamic Response and Frequency Split Predictions for Cylindrical Fused Silica Resonators

被引：7
|
作者：
Luo, Yiming [1 ]
Gebrel, Ibrahim [2 ]
Bognash, Mohamed [3 ]
Pan, Yao [1 ]
Liu, Fen [1 ]
Asokanthan, Samuel [2 ]
Luo, Hui [1 ]
Qu, Tianliang [1 ]
机构：
[1] Natl Univ Def Technol, Coll Adv Interdisciplinary Studies, Changsha 410073, Peoples R China
[2] Univ Western Ontario, Dept Mech & Mat Engn, London, ON N6G 5A7, Canada
[3] Toyota Boshoku Canada, Woodstock, ON N4S 7W3, Canada
来源：
IEEE SENSORS JOURNAL | 2020年 / 20卷 / 07期
基金：
美国国家科学基金会;
关键词：
Coriolis vibratorygyroscope; cylindrical fused silica resonator; time response; frequencysplit prediction; SHELL RESONATOR; GYROSCOPE;
D O I：
10.1109/JSEN.2019.2959241
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
An investigation into the dynamic response and frequency split behavior of a cylindrical fused silica resonator is performed via simulations and experiments. For this purpose, a structure for the cylindrical resonators with appropriate dimensions has been designed and fabricated. A laser Doppler vibrometer is utilized for the experimental quantification of the physical characteristics of the resonator. Natural frequencies of n = 2 modes, frequency split and quality factor have been extracted from the measured frequency sweep. Then the influence of mass change on the frequency split is investigated by chemical trimming. Time response predictions utilizing a ring model is employed to predict the resonant amplitudes as well as the influence of driving force and input angular velocity variations. The numerical predictions of the relationship between the mass mismatch and the frequency split are found to be consistent with the exper imental results. Predictions of frequency split of resonators via the simulation model are envisaged to greatly increase the efficacy of the chemical trimming process.
引用
收藏
页码：3460 / 3468
页数：9
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