| 发明名称 | Position-measuring device | ||
| 摘要 | A position-measuring device is used to detect the relative position of two machine components that are disposed in a manner allowing movement relative to each other at least along a first and a second main direction of motion in a displacement plane. The device includes at least one measuring standard, which is mounted on a first machine component. At least six scanning units are mounted on a second machine component, and are used for the optical scanning of the measuring standard in at least two measuring directions in the displacement plane. At least two scanning units are assigned to each measuring direction. The scanning units of each respective measuring direction in the displacement plane are disposed non-centrosymmetrically in relation to a center of the second machine component. | ||
| 申请公布号 | US8988691(B2) | 申请公布日期 | 2015.03.24 |
| 申请号 | US201313919780 | 申请日期 | 2013.06.17 |
| 申请人 | Dr. Johannes Heidenhain GmbH | 发明人 | Bihr Ralf;Drescher Joerg;Holzapfel Wolfgang;Meissner Markus;Musch Bernhard;Pletschacher Bernhard |
| 分类号 | G01B11/14;G01D5/38;G03F7/20 | 主分类号 | G01B11/14 |
| 代理机构 | Kenyon & Kenyon LLP | 代理人 | Kenyon & Kenyon LLP |
| 主权项 | 1. A position-measuring device for detecting a relative position of two machine components movable relative to each other at least along a first main direction of motion and a second main direction of motion in a displacement plane, comprising at least one measuring standard mountable on a first machine component; and at least six scanning units mountable on a second machine component and adapted for optical scanning of the measuring standard in at least two measuring directions in the displacement plane; wherein at least two scanning units are assigned to each measuring direction; and wherein the scanning units of each respective measuring direction in the displacement plane are arranged non-centrosymmetrically in relation to a center of the second machine component. | ||
| 地址 | Traunreut DE | ||