发明申请
US20100308799A1 SYSTEMS AND METHODS FOR MEASURING ROTATIONAL SPEED AND POSITION OF A ROTATING DEVICE
有权
用于测量旋转速度和旋转装置位置的系统和方法
- 专利标题： SYSTEMS AND METHODS FOR MEASURING ROTATIONAL SPEED AND POSITION OF A ROTATING DEVICE
- 专利标题（中）： 用于测量旋转速度和旋转装置位置的系统和方法
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申请号： US12574935申请日： 2009-10-07
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公开(公告)号： US20100308799A1公开(公告)日： 2010-12-09
- 发明人: Qi Ma , Brian M. Tulkki
- 申请人： Qi Ma , Brian M. Tulkki
- 申请人地址： US MI Detroit
- 专利权人： GM GLOBAL TECHNOLOGY OPERATIONS, INC.
- 当前专利权人： GM GLOBAL TECHNOLOGY OPERATIONS, INC.
- 当前专利权人地址： US MI Detroit
- 主分类号： G01P3/66
- IPC分类号： G01P3/66
摘要：
A system includes a transceiver module and a rotating device. The transceiver module generates an electromagnetic (EM) field using an antenna. The rotating device includes N transponders arranged such that each of the N transponders passes through the EM field during one revolution of the rotating device. Each of the N transponders damps the EM field when passing through the EM field. The transceiver module determines a rotational speed of the rotating device based on a number of times the EM field is damped during a period. N is an integer greater than or equal to 1.
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