发明授权
US5818605A Method and apparatus for high resolution sensing of engraving stylus
movement
失效
用于高分辨率感应雕刻触针运动的方法和装置
- 专利标题: Method and apparatus for high resolution sensing of engraving stylus movement
- 专利标题(中): 用于高分辨率感应雕刻触针运动的方法和装置
-
申请号: US699528申请日: 1996-08-19
-
公开(公告)号: US5818605A公开(公告)日: 1998-10-06
- 发明人: Albert Crewe , George B. Thiel , Douglas R. Adler , Riyazhassan M. Asaria
- 申请人: Albert Crewe , George B. Thiel , Douglas R. Adler , Riyazhassan M. Asaria
- 申请人地址: IL Chicago
- 专利权人: R.R. Donnelley & Sons Company
- 当前专利权人: R.R. Donnelley & Sons Company
- 当前专利权人地址: IL Chicago
- 主分类号: B41C1/045
- IPC分类号: B41C1/045 ; G01B7/34 ; H04N1/00 ; B41C1/04
摘要:
Method and apparatus for high resolution sensing of engraving stylus movement for dynamic control of an engraving machine while engraving, improved calibration and as a tool used to assist in selecting acceptable gravure cylinders and improving the manufacturing process of making gravure cylinders is described. A variety of sensors are described in conjunction with measuring engraving stylus movement, specifically, sensors that measure small changes in capacitance, resistance, impedance, optical reflections, optical interference patterns, induced eddy currents and voltages induced in a two-material piezoelectric rod which corresponding to positional changes of the engraving stylus.
公开/授权文献
- US5151441A 3-isoxazolylbenzyl esters, their preparation and their use 公开/授权日:1992-09-29
信息查询