A New Method of Design and Verification of Digital Silicon Gyroscopes Closed-Loop Driving System Based on MicroBlaze

Peng Sun; Qi Shao; Ying Yu Liu; Wei Ping Chen

doi:10.4028/www.scientific.net/KEM.645-646.771

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 645-646A New Method of Design and Verification of Digital...

A New Method of Design and Verification of Digital Silicon Gyroscopes Closed-Loop Driving System Based on MicroBlaze

Abstract:

The article brings out a digital silicon gyroscopes closed-loop driving system using the phase relationship of the input driving signal and the signal of the forced motion of the mass block in sensor structure based on analyzing the working principle and phase characters of digital silicon gyroscopes. We make a low-cost, simple and high precision measurement technique for resonant frequency of silicon micro-machinery gyroscopes by the whole digital locked loop system designed with MicroBlaze method. Dichotomy and Fourier transform spectrometry method constitute the algorithm of the system and the solution precision can be determined by the number of the times of approximation. Under the control of the MicroBlaze softcore, the system realizes the realization of the digital signal, the high speed frequency transformation, the acquisition of mass block response signal and the calculation of phase difference. Lastly, each module of the system and the whole system are simulated, the whole system is approved on the test broad.

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Periodical:

Key Engineering Materials (Volumes 645-646)

Pages:

771-776

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.645-646.771

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Online since:

May 2015

Authors:

Peng Sun*, Qi Shao, Ying Yu Liu, Wei Ping Chen

Keywords:

Closed-Loop, FFT, Gyroscopes, Microblaze

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References

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