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公开(公告)号:US4529310A
公开(公告)日:1985-07-16
申请号:US424629
申请日:1982-09-27
CPC分类号: G01B11/272
摘要: A device for the detection of the center of rotation of a rotating object under test comprises means for illuminating a laser beam on at least one position on the surface of the object thereby generating an interference fringe, means for subjecting the resultant reflected scattered laser beams to spectral analysis by the laser Doppler effect thereby finding the velocity of rotation of the position at which the interference fringe is formed on the surface, and means for determining the center of rotation on the basis of the velocity so found. Protection of the spectral analysis from the adverse effect of the pedestal component is accomplished by causing interference fringes to be formed at a plurality of positions on the surface of the object under test or by placing in the optical path for one of the pair of laser beams a prism capable of continuously modulating the laser frequency.
摘要翻译: 用于检测被测旋转物体的旋转中心的装置包括用于在物体表面上的至少一个位置照射激光束的装置,从而产生干涉条纹,用于使所得到的反射散射激光束 通过激光多普勒效应的光谱分析,从而找到在表面上形成干涉条纹的位置的旋转速度,以及用于基于如此发现的速度确定旋转中心的装置。 通过在被测物体的表面上的多个位置处形成干涉条纹或通过放置在一对激光束中的一个的光路中来实现对基准部件的不利影响的光谱分析的保护 能够连续调制激光频率的棱镜。
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公开(公告)号:US4561333A
公开(公告)日:1985-12-31
申请号:US469407
申请日:1983-02-24
CPC分类号: B24B13/015 , B24B49/04 , Y10T82/10
摘要: High-precision turning of a metal mirror is accomplished by causing a measuring beam to be reflected on a freshly turned area of the reflecting surface to be formed in a metal blank being turned to produce a metal mirror and, at the same time, causing reference beams to be reflected on areas turned prior to the aforementioned freshly turned area, measuring the positions of incidence of the resultant reflected beams on a position detection device thereby performing the Hartmann test on the aforementioned turned areas of the reflecting surface and, based on the results of the measurement, controlling the nose position of the cutting tool now being used in turning the reflecting surface.
摘要翻译: 金属反射镜的高精度转动是通过使测量光束在反射面的新旋转区域上反射而形成在被转动的金属坯料中以产生金属反射镜而实现的,并且同时引起参考 光束被反射到在上述新鲜转动区域之前转动的区域上,测量所得到的反射光束在位置检测装置上的入射位置,从而对反射表面的上述转动区域进行Hartmann测试,并且根据结果 进行测量,控制现在用于转动反射表面的切割工具的鼻部位置。
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