发明名称 |
AKSELEROMETER |
摘要 |
An accelerometer comprises an electric coil pivotally mounted in a magnetic field about an axis extending perpendicular to the field for oscillatory movement substantially perpendicular to the field, in the manner of a D'Arsonval movement. Switching means in the form of a radition source and detector responds to movement of the coil assembly when on either side of a switching position to apply a constant current to the coil to move it in the direction of the switching position, thereby setting up an oscillation of the coil. Linear acceleration is measured by having an inertial mass, such as provided by mounting the coil away from its center of mass, displaced from the pivotal axis. An acceleration force acting on the mass of the oscillating coil alters the proportion of time spent at each side of the switching position to give an average current flow in the coil related to the magnitude of acceleration. More than one coil may be provided to measure acceleration along a number of axes. |
申请公布号 |
NO153022(B) |
申请公布日期 |
1985.09.23 |
申请号 |
NO19800001649 |
申请日期 |
1980.06.02 |
申请人 |
FERRANTI LTD, |
发明人 |
BENNETT, ROBERT STANLEY,;GRIFFITHS, WILLIAM EDWARD, |
分类号 |
G01P15/093;G01P15/13;G01P15/18;(IPC1-7):G01P15/135 |
主分类号 |
G01P15/093 |
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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