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2. 发明申请

US20050256674A1 Three-dimensional machine with simultaneous measurements 有权
标题翻译：三维机器同时测量
公开(公告)号：US20050256674A1
公开(公告)日：2005-11-17
申请号：US11124085
申请日：2005-05-09
申请人： Dominique Beignon , Pascal Choquet , Joel Gandubert , Jean-Jacques Levy
发明人： Dominique Beignon , Pascal Choquet , Joel Gandubert , Jean-Jacques Levy
IPC分类号： G01B7/00 , G01B7/28 , G01B7/287 , G01B21/20 , G06F19/00
CPC分类号： G01B7/287 , G01B7/285
摘要： The invention relates to a method for the three-dimensional measurement of coordinates (xli, yli, zli) of a set of N predetermined points (Plij) of the surface of a mechanical part to be measured, relatively to a predetermined reference system (Ro), and the direction cosines (cxthij) cythij, czthij) of the theoretical normals (Nthij) thereto at the theoretical points (Pthij) corresponding to said N predetermined points (Plij) are known, and including: a preparatory phase, in which the coordinates (xoij, yoij, zoij) of N points (Poij), corresponding to said N predetermined points (Plij) of the surface of a first mechanical part taken as a standard part, are measured relatively to the predetermined reference system (Ro), an initialization phase, in which N displacement measurements (loij) along said normals (Nthij) are simultaneously and respectively read on said N points (Poij) of said standard part, a measurement phase, in which N linear displacement measurements (llij), simultaneously and respectively performed on said N points (Plij) of the part to be measured corresponding to the N points (Poij) of said standard part, are read, a computation phase, in which the three-dimensional coordinates (xlij, ylij, zlij) of the N points of the part to be measured are computed from the three-dimensional coordinates (xoij, yoij, zoij) of the N points of said standard part, from the linear measurements (loij, llij), and from the direction cosines (cxthij, cythij, czthij) of the N theoretical normals at these points. In particular, the invention is applied in metrology for measuring precision mechanical parts.
摘要翻译：本发明涉及一种用于相对于预定的参考系统（Ro（R））来测量待测量的机械部件的表面的一组N个预定点（Plij）的坐标（xli，yli，zli）的三维测量的方法）和对应于所述N个预定点（Plij）的理论点（Pthij）的理论法线（Nthij）的方向余弦（cxthij）cythij，czthij），并且包括：准备阶段，其中相对于预定的参考系（Ro）测量对应于作为标准部分的第一机械部件的表面的所述N个预定点（Plij）的N个点（Poij）的坐标（xoij，yoij，zoij）初始化阶段，其中沿着所述法线（Nthij）的N个位移测量（loij）同时并分别在所述标准部分的所述N个点（Poij）上读取，测量阶段，其中N个线性位移测量（llij）同时分别对与所述标准部分的N点（Poij）对应的要测量部分的所述N个点（Plij）进行读取，计算阶段是三维坐标（xlij，ylij，zlij）从所述标准部分的N个点的三维坐标（xoij，yoij，zoij）中，从线性测量（loij，llij）和方向余弦（ cxthij，cythij，czthij）在这些点的N理论法线。特别地，本发明应用于测量精密机械部件的计量学中。

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