The hardware circuit design in gyroscope detection system combined with SDM

DOI

10.2991/aest-16.2016.46How to use a DOI?

Keywords

silicon micro-gyroscope; sigma delta modulator; closed-loop detection; signal-to-noise ratio; hardware circuit.

Abstract

The open-loop detection of Silicon micro-gyroscope always has a low bandwidth and a small dynamic range, and is sensitive with manufacturing errors. So this paper has studied the application of sigma-delta modulator in the closed-loop detection circuit of silicon gyroscope, and has put forward a preliminary hardware solution. Finally get a model of closed-loop detection system for gyro which can reach a signal-to-noise ratio index to 108.5 db, meeting the initial design specifications: resolution of 0.001 ø / s and range of ±200 ø / s. And in the aspect of hardware circuit, we have finished the interface circuit, including pre-amplifier circuit, the AD conversion module and the feedback module.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Y.F. Zhu
AU  - Z.Q. Wu
AU  - Y. Su
PY  - 2016/11
DA  - 2016/11
TI  - The hardware circuit design in gyroscope detection system combined with SDM
BT  - Proceedings of the 2016 International Conference on Advanced Electronic Science and Technology (AEST 2016)
PB  - Atlantis Press
SP  - 353
EP  - 361
SN  - 1951-6851
UR  - https://doi.org/10.2991/aest-16.2016.46
DO  - 10.2991/aest-16.2016.46
ID  - Zhu2016/11
ER  -