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1. 发明申请

US20070024861A1 LASER TRACKING INTERFEROMETER 有权
标题翻译：激光跟踪干涉仪
公开(公告)号：US20070024861A1
公开(公告)日：2007-02-01
申请号：US11458533
申请日：2006-07-19
申请人： Shinichirou Yanaka , Makoto Abe , Shinichi Hara , Naoyuki Taketomi
发明人： Shinichirou Yanaka , Makoto Abe , Shinichi Hara , Naoyuki Taketomi
IPC分类号： G01B11/02
CPC分类号： G01S17/36 , G01B11/03 , G01S7/4812 , G01S7/497 , G01S17/42 , G01S17/66
摘要： A laser tracking interferometer; a carriage rotatable about a center of the reference sphere; a laser interferometer that provides a retroreflector displacement signal, and a displacement gage that provides a displacement signal. A data processing apparatus computes displacement of the retroreflector with respect to the reference sphere. A position sensitive detector provides a position signal corresponding to the amount of deviation of a laser beam when the laser beam is reflected off the retroreflector back into the laser interferometer and deviated in a direction orthogonal to its optical axis. A controller controls rotation of the carriage based on the position signal from the position detector so that the amount of deviation becomes zero.
摘要翻译：激光跟踪干涉仪; 可围绕参考球的中心旋转的托架; 提供后向反射器位移信号的激光干涉仪和提供位移信号的位移计。数据处理装置计算回射器相对于参考球的位移。当激光束从后向反射器反射回激光干涉仪并偏离与其光轴正交的方向时，位置敏感检测器提供对应于激光束偏离量的位置信号。控制器基于来自位置检测器的位置信号控制滑架的旋转，使得偏差量变为零。

2. 发明授权

US07388674B2 Laser tracking interferometer 有权
标题翻译：激光跟踪干涉仪
公开(公告)号：US07388674B2
公开(公告)日：2008-06-17
申请号：US11458533
申请日：2006-07-19
申请人： Shinichirou Yanaka , Makoto Abe , Shinichi Hara , Naoyuki Taketomi
发明人： Shinichirou Yanaka , Makoto Abe , Shinichi Hara , Naoyuki Taketomi
IPC分类号： G01B9/06
CPC分类号： G01S17/36 , G01B11/03 , G01S7/4812 , G01S7/497 , G01S17/42 , G01S17/66
摘要： A laser tracking interferometer directs a laser beam to a retroreflector serving as an object to be measured to sense a displacement of the retroreflector using interference with a laser beam back reflected from the retroreflector. The laser tracking interferometer includes: a reference sphere; a carriage that rotates about a center of the reference sphere; a laser interferometer; a displacement gage for providing a displacement signal corresponding to a relative displacement between the reference sphere and the displacement gage; a data processing apparatus for computing a displacement of the retroreflector; a position sensitive detector for providing a position signal corresponding to deviation of a laser beam; and a controller for controlling rotation of the carriage based on the position signal so that the amount of deviation becomes zero.
摘要翻译：激光跟踪干涉仪将激光束引导到用作被测量对象的后向反射器，以使用与从后向反射器反射的激光束的干涉来感测回射器的位移。激光跟踪干涉仪包括：参考球; 围绕参考球的中心旋转的托架; 激光干涉仪; 用于提供对应于参考球和位移计之间的相对位移的位移信号的位移计; 用于计算后向反射器的位移的数据处理装置; 位置敏感检测器，用于提供对应于激光束偏离的位置信号; 以及控制器，用于基于位置信号控制滑架的旋转，使得偏差量变为零。

3. 发明授权

US06797911B2 Electric discharge machining electrode 失效
公开(公告)号：US06797911B2
公开(公告)日：2004-09-28
申请号：US10779800
申请日：2004-02-18
申请人： Sotomitsu Hara , Shinichirou Yanaka
发明人： Sotomitsu Hara , Shinichirou Yanaka
IPC分类号： B23K106
CPC分类号： B23H1/04 , B23H1/06
摘要： An electric discharge machining electrode adapted to improve the quality of a finished surface of an article by increasing a machining speed by improving the electric discharge generation rate &eegr; even in a fine machining process; and by rendering it possible to maintain constant the electric discharge generation rate &eegr; even when a time width and a voltage of the electric discharge pulses are reduced. In an electrode used in the electric discharge machining process carried out by generating electric discharge pulses between the electrode and an article, a radioactive metal is contained in the portion of the electrode in which the electric discharge pulses occur, or in the portion thereof which is in the vicinity of the portion in which the electric discharge pulses occur. The radiant rays emitted by the radioactive metal exert influence on the substances present between the article and the electrode, or processing liquids, which are usually water or oil, and works so as to promote the electrolytic dissociation of the substances. Therefore, the electric discharge generation rate &eegr; is improved.

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