Effects of Structure and Air Damping on Quality Factor under Various Pressure Environments Based on Experimental Research

This paper presents an analysis about the variation of quality factor (Q-factor) aiming at the complex micro resonator to explore the mechanism of the energy loss under different pressures. To demonstrate the work, a series of resonators are designed, which mainly differs in the squeeze-damping and...

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Published in:Key engineering materials 2014-04, Vol.609-610, p.1381-1385
Main Authors: Sun, Dao Heng, Wang, Ling Yun, Cai, Jian Fa, Yu, Ling Ke, Yan, Xin, He, Jie, Wang, Xiao Ping, Wei, Jin
Format: Article
Language:English
Subjects:
Beams (structural)
Damping
Errors
High vacuum
Low vacuum
Quality factor
Resonators
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Wang, Ling Yun
Cai, Jian Fa
Yu, Ling Ke
Yan, Xin
He, Jie
Wang, Xiao Ping
Wei, Jin
description This paper presents an analysis about the variation of quality factor (Q-factor) aiming at the complex micro resonator to explore the mechanism of the energy loss under different pressures. To demonstrate the work, a series of resonators are designed, which mainly differs in the squeeze-damping and scale of the beam. According to corresponding structure, the Q-factor is measured at different pressures while the theoretical air damping model combined with Christians model is also proposed. The air damping models of three types are proved to have 10%~30% relative error compared to experimental results in low vacuum, respectively. And, for the high vacuum, the structural energy loss plays an important role on the Q-factor, which increases with the decrement of comb quantity and the beam width.
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subjects Beams (structural)
Damping
Errors
High vacuum
Low vacuum
Quality factor
Resonators
title Effects of Structure and Air Damping on Quality Factor under Various Pressure Environments Based on Experimental Research
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