发明名称 |
Magnet based activity sensor |
摘要 |
An activity sensor which provides an indication of motion caused by changes in acceleration of a person or animal, and wherein such changes of motion are sensed by a movable magnet which is biased to a rest position along a guide. The axis of the path of movement of the movable magnet is substantially parallel to the direction of accelerations of interest. A Hall effect sensor is provided for sensing motions of the movable magnet from its rest position, and it provides an output proportional to these movements.
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申请公布号 |
US4737774(A) |
申请公布日期 |
1988.04.12 |
申请号 |
US19860897127 |
申请日期 |
1986.08.15 |
申请人 |
COMPUCAP, INC. |
发明人 |
CHAPMAN, RICHARD C.;HAMERLY, MICHAEL E. |
分类号 |
G01D5/14;G01P13/00;G01P15/08;(IPC1-7):G01P15/08;G08B23/00;A01K15/00 |
主分类号 |
G01D5/14 |
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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