发明名称 |
Nonresonant micromachined gyroscopes with structural mode-decoupling |
摘要 |
A four-degrees-of-freedom (DOF) nonresonant micromachined gyroscope utilizes a dynamical amplification both in the 2-DOF drive-direction oscillator and the 2-DOF sense-direction oscillator, which are structurally decoupled, to achieve large oscillation amplitudes without resonance. The overall 4-DOF dynamical system is comprised of three proof masses. The second and third masses form the 2-DOF sense-direction oscillator. The first mass and the combination of the second and third masses form the 2-DOF drive-direction oscillator. The frequency responses of the drive and sense-mode oscillators have two resonant peaks and a flat region between the peaks. The device is nominally operated in the flat regions of the response curves belonging to the drive and sense-mode oscillators, where the gain is less sensitive to frequency fluctuations. This is achieved by designing the drive and sense anti-resonance frequencies to match.
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申请公布号 |
EP1568968(A2) |
申请公布日期 |
2005.08.31 |
申请号 |
EP20050004022 |
申请日期 |
2005.02.24 |
申请人 |
THE REGENTS OF THE UNIVERSITY OF CALIFORNIA |
发明人 |
SHKEL,ANDREI M.;ACAR,CENK |
分类号 |
G01P9/04;G01C19/56;(IPC1-7):G01C19/56 |
主分类号 |
G01P9/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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