发明名称 |
SURFACE SENSING DEVICE WITH OPTICAL SENSOR |
摘要 |
A surface sensing device for use in position determining apparatus has an elongate stylus (74) with a tip (82) for scanning the surface of a workpiece to be measured. Lateral displacements of the stylus tip are detected by a light beam which passes along the stylus from a light source (66) to a retroreflector (78). This reflects the beam back via a beamsplitter (70) to a position sensitive detector (76). The stylus is mounted for longitudinal displacement on a carriage (72). The longitudinal displacement is measured by another light beam projected by the beamsplitter (70) onto a second position sensitive detector (84). |
申请公布号 |
EP1875158(A1) |
申请公布日期 |
2008.01.09 |
申请号 |
EP20060726918 |
申请日期 |
2006.04.26 |
申请人 |
RENISHAW PLC |
发明人 |
JONAS, KEVYN, BARRY;MCFARLAND, GEOFFREY |
分类号 |
G01B11/00 |
主分类号 |
G01B11/00 |
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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