发明名称 |
Micromachined capacitive lateral accelerometer device and monolithic, three-axis accelerometer having same |
摘要 |
A high-sensitivity and low-noise micromachined capacitive lateral accelerometer device having an input axis and a monolithic, three-axis accelerometer utilizing the device are provided. The device includes at least one electrode having a side surface normal to the input axis. A relatively large proofmass has at least one side surface normal to the input axis and extends along a width of the proofmass. The proofmass is movable against acceleration relative to the at least one electrode due to inertial force along the input axis to obtain a capacitive variation between the at least one electrode and the proofmass. The side surfaces are spaced apart to define a narrow, high-aspect ratio sensing gap which extends along substantially the entire width of the proofmass. The proofmass forms a sense capacitor with the at least one electrode.
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申请公布号 |
US6938484(B2) |
申请公布日期 |
2005.09.06 |
申请号 |
US20040760025 |
申请日期 |
2004.01.16 |
申请人 |
THE REGENTS OF THE UNIVERSITY OF MICHIGAN |
发明人 |
NAJAFI KHALIL;CHAE JUNSEOK |
分类号 |
B81B3/00;G01P15/08;G01P15/125;G01P15/18;(IPC1-7):G01P15/125 |
主分类号 |
B81B3/00 |
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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