A high-performance self-clocked digital-output quartz gyroscope

Ismail, A.; Ashraf, Khaled; Metawea, A.; Mostfa, Islam; Saeed, Ahmed; Helal, Eslam; Essawy, Mostafa; Abdelazim, Mohamed; Ibrahim, Mukdad; Raafat, Ramy; Abdelbary, Eslam; Alaa, Islam; Nabil, Marawan; Mansour, Abdelrahman; Ibrahim, Bassem; Elsayed, A.

doi:10.1109/icsens.2015.7370471

Cited by 6 publications

(1 citation statement)

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“…Apparently, to reduce the impact of the phase noise, we need to diminish the non-ideal factors in the mechanical structural aspect. From a circuit design aspect, we can use accurate phase adjustment technology between the modulation signal and demodulated signal to diminish

item [ 47 , 48 ]. However, the structure parameters are changed with environmental factors and

may change dramatically.…”

Section: The Influence Of Time-varying Phase Noise On the Mems Drgmentioning

confidence: 99%

Study of the Influence of Phase Noise on the MEMS Disk Resonator Gyroscope Interface Circuit

Zhang

Chen

Yin

et al. 2020

Sensors

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In this paper, a detailed analysis of the influence of phase noise on the micro-electro-mechanical system (MEMS) disk resonator gyroscope (DRG) is presented. Firstly, a new time-varying phase noise model for the gyroscope is established, which explains how the drive loop circuit noise converts into phase noise. Different from previous works, the time-varying phase noise model in this paper is established in mechanical domain, which gain more physical insight into the origin of the phase noise in gyroscope. Furthermore, the impact of phase noise on DRG is derived, which shows how the phase noise affects angular velocity measurement. The analysis shows that, in MEMS DRG, the phase noise, together with other non-ideal factors such as direct excitation of secondary resonator, may cause a low frequency noise in the output of the gyroscope system and affect the bias stability of the gyroscope. Finally, numerical simulations and experiment tests are designed to prove the theories above.

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item [ 47 , 48 ]. However, the structure parameters are changed with environmental factors and

may change dramatically.…”

Section: The Influence Of Time-varying Phase Noise On the Mems Drgmentioning

confidence: 99%