公开(公告)号：WO2008056244A3

公开(公告)日：2008-07-10

申请号：PCT/IB2007003425

申请日：2007-11-09

Applicant: HEXAGON METROLOGY SPA ,  GARAU ENRICO

Inventor： GARAU ENRICO

IPC: E04C3/06

CPC classification number: E04C3/06 ,  E04C2003/0413 ,  E04C2003/043 ,  E04C2003/0469 ,  G01B5/008

Abstract: A beam (12) for a measuring machine (1) is constituted by a plurality of extruded beam elements (14), which are set alongside one another and welded together so that each forms a portion of the cross section of the beam itself; the beam elements (14) and the beam (12) have a hollow section shaped like an equilateral triangle.

Abstract translation: 用于测量机（1）的梁（12）由多个挤出的梁元件（14）组成，它们彼此并排设置并焊接在一起，从而各自形成横梁本身的横截面的一部分; 梁元件（14）和梁（12）具有类似于等边三角形的中空部分。

公开(公告)号：WO2009001385A1

公开(公告)日：2008-12-31

申请号：PCT/IT2007000465

申请日：2007-06-28

Applicant: HEXAGON METROLOGY SPA ,  GUASCO GIAMPIERO ,  MENGA GIUSEPPE

Inventor： GUASCO GIAMPIERO ,  MENGA GIUSEPPE

IPC: G01B21/04

CPC classification number: G01B21/045 ,  G01B5/008 ,  G01B21/042

Abstract: A method for determining dynamic errors in a measuring machine that gives the position (xa, ya, za) of a mobile element of the machine (3) in a working space with respect to a reference system (X, Y, Z), comprising: a calibration step (100), defined in which is at least one input-output model (M1, M2, Mcompl), which describes the dynamic behaviour of at least part of the measuring machine; said input-output model yields, in response to at least one input quantity u (Ix, Iy), a plurality of output quantities y (xa, ya, my, raz, ex, ey), which comprise, among other things, the position error (ex, ey) introduced in the measurement of position by the elastic deformations of parts of the machine (1) that undergo dynamic deformation; a step of definition of an estimator filter (M1) that yields, in response to measured values of input quantities u and, in response to measured values of a subset of the output quantities y, an estimate of the position error (ex, ey); the filter (M1) is obtained by means of an analytical method based upon the input-output model; and a step of continuous real-time reconstruction of the error, in which the measured values of the input quantities u and the measured values of a subset of the output quantities y are applied at input to said estimator filter (M1).

Abstract translation: 一种用于确定测量机器中的动态误差的方法，所述方法将相对于参考系统（X，Y，Z）的机器（3）的移动元件的位置（xa，ya，za）给出在工作空间中，所述方法包括 ：校准步骤（100），其定义为至少一个输入 - 输出模型（M1，M2，Mcompl），其描述测量机的至少一部分的动态行为; 所述输入 - 输出模型响应于至少一个输入量u（Ix，Iy）产生多个输出量y（xa，ya，my，raz，ex，ey），其包括尤其是 通过进行动态变形的机器（1）的部件的弹性变形引入位置测量中的位置误差（ex，ey）; 估计滤波器（M1）的定义的步骤，其响应于输入量u的测量值而产生，并且响应于输出量y的子集的测量值，估计位置误差（ex，ey） ; 通过基于输入 - 输出模型的分析方法获得滤波器（M1）; 以及连续实时重建误差的步骤，其中将输入量u的测量值和输出量y的子集的测量值在输入处施加到所述估计滤波器（M1）。