发明名称 |
IMPROVED MICROELECTROMECHANICAL ACCELEROMETER DEVICE |
摘要 |
The structure enables two-directional sensing of accelerations with compact component dimensions and with minimal cross-axis sensitivity. The rotation mass (100) includes a first frame (102) and a second frame (102). In one sense direction, the structure employs a combined proof mass of the first frame and the second frame, which improves the signal to noise level achievable with said device dimensions. In the other sense direction, a detection structure (140) with at least two sensing elements is used to detect displacements of the proof mass of the second frame. Due to the specific internal configuration of the detection structure (140), signal contributions of the sensing elements in the one direction cancel each other. |
申请公布号 |
WO2017051243(A1) |
申请公布日期 |
2017.03.30 |
申请号 |
WO2016IB01356 |
申请日期 |
2016.09.23 |
申请人 |
MURATA MANUFACTURING CO., LTD. |
发明人 |
LIUKKU, Matti;NISKANEN, Severi |
分类号 |
G01P15/125;B81B5/00;G01P15/08;G01P15/18 |
主分类号 |
G01P15/125 |
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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