发明申请
US20080036454A1 Multi-Revolution Absolute High-Resolution Rotation Measurement System And Bearing Equipped With Such A System
审中-公开
多重旋转绝对高分辨率旋转测量系统和配备这种系统的轴承
- 专利标题： Multi-Revolution Absolute High-Resolution Rotation Measurement System And Bearing Equipped With Such A System
- 专利标题（中）： 多重旋转绝对高分辨率旋转测量系统和配备这种系统的轴承
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申请号： US10536105申请日： 2004-10-08
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公开(公告)号： US20080036454A1公开(公告)日： 2008-02-14
- 发明人: Franck Landrieve
- 申请人： Franck Landrieve
- 申请人地址： SE Goteborg
- 专利权人： AKTIEBOLAGET SKF
- 当前专利权人： AKTIEBOLAGET SKF
- 当前专利权人地址： SE Goteborg
- 优先权： FR03/12354 20031022
- 国际申请： PCT/FR04/02542 WO 20041008
- 主分类号： G01B7/30
- IPC分类号： G01B7/30
摘要：
A rotation measurement system comprises a rotatable annular magnetic encoder 16 carrying a series of encoding elements 23 arranged around the circumference of the encoder according to a periodic pattern, characterized in that it comprises a primary sensor assembly 38 comprising at least a primary magnetic sensor 38 disposed facing the encoding elements for detecting the angular position of the encoder with a discrete angular resolution of a fraction of a revolution equal to or less than one period of the encoder and an electronic counter for the number of fractions of a revolution made, and a secondary sensor assembly comprising secondary magnetic sensors 24a to 24d, 25a to 25d disposed facing the encoding elements for determining an absolute position of the encoder between two positions separated by at least one fraction of a revolution.
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