TY - JOUR
T1 - Quality factor trimming method using thermoelastic dissipation for multi-ring resonator
AU - Abdelli, Hamza
AU - Tsukamoto, Takashiro
AU - Tanaka, Shuji
N1 - Funding Information:
This work is supported by a project commissioned by the New Energy and Industrial Technology Development Organization ( NEDO ).
Publisher Copyright:
© 2021 Elsevier B.V.
PY - 2021/12/1
Y1 - 2021/12/1
N2 - In this paper, a novel quality factor trimming method for a 2-axis mode-matched resonator using thermoelastic dissipation (TED) is reported. A disk resonator was designed so that the Q-factor is mainly limited by TED, in which the effect of energy dissipation can be tuned by mechanical trimming. The trimming location are carefully chosen to independently modify the Q-factors of each axis. In addition, the trimming structure is designed not to affect the resonant frequencies. From the numerical experiment, the Q-factor trimming as much as 108% could be achieved while the frequency change was 4.7% at the maximum.
AB - In this paper, a novel quality factor trimming method for a 2-axis mode-matched resonator using thermoelastic dissipation (TED) is reported. A disk resonator was designed so that the Q-factor is mainly limited by TED, in which the effect of energy dissipation can be tuned by mechanical trimming. The trimming location are carefully chosen to independently modify the Q-factors of each axis. In addition, the trimming structure is designed not to affect the resonant frequencies. From the numerical experiment, the Q-factor trimming as much as 108% could be achieved while the frequency change was 4.7% at the maximum.
KW - FM gyroscope
KW - Frequency mismatch
KW - Multi-ring resonator
KW - Q-factor mismatch
KW - RIG gyroscope
KW - TED
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U2 - 10.1016/j.sna.2021.113044
DO - 10.1016/j.sna.2021.113044
M3 - Article
AN - SCOPUS:85114807069
SN - 0924-4247
VL - 332
JO - Sensors and Actuators A: Physical
JF - Sensors and Actuators A: Physical
M1 - 113044
ER -