发明名称 |
TRI-AXIAL ACCELEROMETERS |
摘要 |
An accelerometer has a moving magnet 6 within a housing 2. The magnet 6 is mounted within a support member 7 connected to the centre of a diaphragm 9 so as to permit movement of the magnet 6 along a measurement axis extending in the axial direction of the support member 7 by deformation of the diaphragm 9 and so as to permit movement of the magnet 6 along two mutually orthogonal measurement axes parallel to the diaphragm 9 by flexing of the diaphragm 9 to allow for pivoting of the support member 7. Furthermore displacement of the magnet 6 with respect to the three mutually transverse measurement axes in response to an applied force is sensed by a pickoff capacitor 14, and a respective output signal proportional to the component of the applied force along each of the measurement axes is supplied by associated sensing circuitry. Simultaneously the magnet 6 is restored to its null position by associated force coil pairs 30,32; 29,31; and 26,27. The use of a single magnet for measurement along the three axes renders the accelerometer of high accuracy and decreases the size of the measurement assembly. |
申请公布号 |
EP0323709(B1) |
申请公布日期 |
1992.06.10 |
申请号 |
EP19880311376 |
申请日期 |
1988.12.01 |
申请人 |
RUSSELL, MICHAEL KING;RUSSELL, ANTHONY WILLIAM |
发明人 |
RUSSELL, MICHAEL KING;RUSSELL, ANTHONY WILLIAM |
分类号 |
G01P15/125;G01P15/13;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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