发明授权
- 专利标题: Device and method for coordinate measurement
- 专利标题(中): 用于坐标测量的装置和方法
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申请号: US11597445申请日: 2005-04-15
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公开(公告)号: US07367133B2公开(公告)日: 2008-05-06
- 发明人: Rainer Hagl , Herbert Reiter , Erich Strasser
- 申请人: Rainer Hagl , Herbert Reiter , Erich Strasser
- 申请人地址: DE Traunreut
- 专利权人: Dr. Johannes Heidenhain GmbH
- 当前专利权人: Dr. Johannes Heidenhain GmbH
- 当前专利权人地址: DE Traunreut
- 代理机构: Kenyon & Kenyon LLP
- 优先权: DE102004026022 20040527; DE102005011285 20050311
- 国际申请: PCT/EP2005/003966 WO 20050415
- 国际公布: WO2005/119173 WO 20051215
- 主分类号: G01B7/008
- IPC分类号: G01B7/008
摘要:
In a device and a method for coordinate measurement, a probe head generates a switching signal in response to contact with a workpiece. The device includes position-measuring units for each coordinate axis to be measured, with the aid of which the relative position of the probe head is measurable; and a processing unit, which operates in a discrete-time manner in time intervals of a controller clock signal. For coordinate measurement, position-measuring values are measured in time intervals of a probing clock signal, which is generated by a probing clock generator and has a higher frequency than a controller clock signal of a processing unit. The position-measuring values are stored in a position-data memory. A time span between a pulse of the controller clock signal and the occurrence of the switching signal at the switching probe head is measured in a time-measuring unit. With the aid of the measured time span, the position value in the position-data memory closest to the time of the switching signal is ascertained in the processing unit or in the position-measuring units.
公开/授权文献
- US20070245584A1 Device and Method for Coordinate Measurement 公开/授权日:2007-10-25
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