发明名称 |
Planar 3-axis intertial measurement unit |
摘要 |
The present invention relates to a z-axial solid-state gyroscope. Its main configuration is manufactured with a conductive material and includes two sets of a proof mass and two driver bodies suspended between two plates by an elastic beam assembly. Both surfaces of the driver bodies and the proof masses respectively include a number of grooves respectively perpendicular to a first axis and a second axis. The surfaces of the driver bodies and the proof masses and the corresponding stripe electrodes of the plates thereof are respectively formed a driving capacitors and a sensing capacitors. The driving capacitor drives the proof masses to vibrate in the opposite direction along the first axis. If a z-axial angular velocity input, a Coriolis force makes the two masses vibrate in the opposite direction along the second axis. If a second axial acceleration input, a specific force makes the two masses move in the same direction along the second axis. Both inertial forces make the sensing capacitances change. Two z-axial solid-state gyroscopes and two in-plane axial gyroscopes can be designed on a single chip to form a complete three-axis inertial measurement unit.
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申请公布号 |
US2005217374(A1) |
申请公布日期 |
2005.10.06 |
申请号 |
US20050124106 |
申请日期 |
2005.05.09 |
申请人 |
CHUNG-SHAN INSTITUTE OF SCIENCE AND TECHNOLOGY |
发明人 |
CHEN SHYU-MOU;TZUOO SHEAU-SHI;KAU CHUNG-TA |
分类号 |
G01C19/56;G01P9/04;G01P15/125;G01P15/18;(IPC1-7):G01P9/04;G01P15/14 |
主分类号 |
G01C19/56 |
代理机构 |
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代理人 |
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主权项 |
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