发明申请
US20040025357A1 Device and method for detecting the rotational movement of an element rotatably mounted about an axis
有权
用于检测围绕轴线可旋转地安装的元件的旋转运动的装置和方法
- 专利标题： Device and method for detecting the rotational movement of an element rotatably mounted about an axis
- 专利标题（中）： 用于检测围绕轴线可旋转地安装的元件的旋转运动的装置和方法
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申请号： US10381076申请日： 2003-08-15
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公开(公告)号： US20040025357A1公开(公告)日： 2004-02-12
- 发明人: Wilhelm Schroder
- 优先权： DE10047776.3 20000918
- 主分类号： G01D021/00
- IPC分类号： G01D021/00
摘要：
A device for detecting the rotational movement of an element which is rotatably seated around an axis, the device including a material measure that rotates about an axis of rotation. A first measuring graduation provided on the material measure and which scans along a first direction, which has a component along the axis of rotation and a second measuring graduation provided on the material measure, wherein both the first measuring graduation and the second measuring graduation surround the axis of rotation in a ring shape, and which can be scanned along the first direction and a second direction that is linearly independent of the first direction. At least three measuring heads, which are spaced apart from each other along a circumferential direction which surrounds the axis of rotation, are assigned to each of the first measuring graduation and the second measuring graduation for scanning the first measuring graduation and the second measuring graduations.