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Design of a high-sensitivity micromechanical resonant accelerometer with a two-stage microlever

  • Beihang University
  • China Academy of Aerospace Electronics Technology

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

A novel micromechanical silicon resonant accelerometer with a two-stage microlever mechanism and dual-proofmass architecture was presented to achieve a higher sensitivity and stability. According to the mechanical model of the two-stage microlever, the ANSYS simulations were performed to analyze the effects of structural parameters, including lever structure dimensions and the ratio of lever power arm to lever resisting arm, on the scale factor and the operating modal frequency of accelerometer. Furthermore, the dual-proofmass architecture effectively removed the "blind zone" resulted from a "lock-in" phenomenon at the crossing frequency. In consideration of the tradeoff of the acceleration sensitivity and the operating modal frequency of 1.2 kHz, the designed accelerometer achieved a sensitivity of 430 Hz/g and a linear accuracy of 5%o with a nominal resonant frequency of 22482 Hz in the range of±30 g.

源语言英语
主期刊名Proceedings of 2015 IEEE Advanced Information Technology, Electronic and Automation Control Conference, IAEAC 2015
编辑Bing Xu
出版商Institute of Electrical and Electronics Engineers Inc.
1052-1055
页数4
ISBN(电子版)9781479919796
DOI
出版状态已出版 - 7 3月 2016
活动IEEE Advanced Information Technology, Electronic and Automation Control Conference, IAEAC 2015 - Chongqing, 中国
期限: 19 12月 201520 12月 2015

出版系列

姓名Proceedings of 2015 IEEE Advanced Information Technology, Electronic and Automation Control Conference, IAEAC 2015

会议

会议IEEE Advanced Information Technology, Electronic and Automation Control Conference, IAEAC 2015
国家/地区中国
Chongqing
时期19/12/1520/12/15

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