Design of digital detection circuit for piezoelectric gyroscope based on FPGA

LI Guo-bin; WU Xiao-sheng

doi:10.13873/J.1000-9787(2016)09-0092-03

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Design of digital detection circuit for piezoelectric gyroscope based on FPGA

更新时间：2025-09-11

- Design of digital detection circuit for piezoelectric gyroscope based on FPGA
- Vol. 35, Issue 9, Pages: 92-94(2016)
- 作者机构：
  
  上海交通大学电子信息与电气工程学院微纳电子学系微米纳米加工技术国家级重点实验室上海市北斗导航与位置服务重点实验室
- 作者简介：
- 基金信息：
- DOI：10.13873/J.1000-9787(2016)09-0092-03
  CLC： TN791;TN911.7
- Published：2016
- 稿件说明：
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[1]李国斌,吴校生.基于FPGA的压电陀螺数字化检测电路设计[J].传感器与微系统,2016,35(09):92-94.

LI Guo-bin, WU Xiao-sheng. Design of digital detection circuit for piezoelectric gyroscope based on FPGA[J]. 2016, 35(9): 92-94.
[1]李国斌,吴校生.基于FPGA的压电陀螺数字化检测电路设计[J].传感器与微系统,2016,35(09):92-94. DOI： 10.13873/J.1000-9787(2016)09-0092-03.

LI Guo-bin, WU Xiao-sheng. Design of digital detection circuit for piezoelectric gyroscope based on FPGA[J]. 2016, 35(9): 92-94. DOI： 10.13873/J.1000-9787(2016)09-0092-03.

摘要

针对压电微固体模态陀螺的信号采集与算法要求

设计了基于现场可编程门阵列（FPGA）的兼具高精度高采样频率的陀螺数字检测系统。介绍了该系统的原理与实现方法。FPGA主控芯片选择XC6SLX25

ADC选择AD7960芯片（18 bit

5MSPS）。经试验验证

制作的样机可以同时采集三路输出信号

并实时处理传给上位机显示。测得陀螺共振频率稳定在349.89 k Hz

上下波动范围8 Hz

参考端输出电压峰峰值的均方差为0.004 V。检测系统稳定

具有较高精度。研究的数字化检测电路能很好地应用于MEMS微陀螺检测信号的处理

提高MEMS微陀螺的稳定性和抗干扰性。

Abstract

To meet requirement of signal acquisition and algorithm of piezoelectric micro solid modal gyroscope

design a digital detection system with high precision and high sampling frequency based on FPGA.The principle and realization approach are presented.The main control chip of FPGA uses XC6SLX25 and ADC adopts AD7960chip（18-bit

5MSPS）.It is verifred by test that the prototype can acquire three-path output signals of the gyroscope at the same time

and sends the processed data to upper PC for displaying.The measured resonant frequencies is stabilize around 349.89 k Hz

fluctuating range is 8 Hz.The mean square error of reference voltage Vpp is 0.004 V.The detection system is stable and has high precision.This digital detection circuit can be well applied for MEMS microgyroscope signal processing and enhances the stability and anti-jamming of microgyroscope.

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Keywords

references

微机电系统基础[M]. 机械工业出版社 , 刘昶, 2013

Closed loop driving and detect circuit of piezoelectric solid-state micro gyroscope [J] . Yongsong He,Xiaosheng Wu,Fu Zheng,Wenyuan Chen,Weiping Zhang,Feng Cui,Wu Liu. Microsystem Technologies . 2014 (2)

Study on Driving Technology of Piezoelectric Solid-State Micro Gyroscope [J] . Zhen Huan Ye,Li Qin Wang. Applied Mechanics and Materials . 2013 (278)

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