公开(公告)号：US20110040514A1

公开(公告)日：2011-02-17

申请号：US12783021

申请日：2010-05-19

申请人： Steffen Kunzmann ,  Tobias Held ,  Thomas Engel

发明人： Steffen Kunzmann ,  Tobias Held ,  Thomas Engel

IPC分类号： G06F19/00 ,  G06F17/18

CPC分类号： G01B21/042

摘要： A reference measurement object having known properties is used for the purpose of calibrating a coordinate measuring machine. A plurality of reference measured values are picked up on the reference measurement object. Calibration data are determined using the reference measured values and using the known properties of the reference measurement object. The calibration data comprises a first number of polynomial coefficients that are selected to correct nonlinear measuring errors using at least one polynomial transformation. The first number of polynomial coefficients is reduced in an iterative method to a lesser second number, with a plurality of pairs of polynomial coefficients being formed and with a polynomial coefficient of a pair being eliminated in each case when a statistical dependence between the polynomial coefficients of the pair is greater than a defined threshold value.

摘要翻译： 具有已知性质的参考测量对象被用于校准坐标测量机的目的。 在参考测量对象上拾取多个参考测量值。 使用参考测量值和使用参考测量对象的已知属性确定校准数据。 校准数据包括第一数量的多项式系数，其被选择以使用至少一个多项式变换来校正非线性测量误差。 第一数量的多项式系数以迭代方法被减少到较小的第二数目，其中形成多对多项式系数，并且在每种情况下消除一对多项式系数，当多项式系数的多项式系数之间的统计相关性 该对大于定义的阈值。

公开(公告)号：US08983795B2

公开(公告)日：2015-03-17

申请号：US13122282

申请日：2009-09-17

申请人： Werner Lotze ,  Steffen Kunzmann ,  Tobias Held

发明人： Werner Lotze ,  Steffen Kunzmann ,  Tobias Held

IPC分类号： G06F15/00 ,  G01B21/04

CPC分类号： G01B21/042

摘要： A work piece is measured by at least one point of a surface of the work piece being sampled by a feeler. The feeler exerts a probing force on the surface and the feeler is deflected relative to a mounting of the feeler. On the basis of the deflection, a position of the point of the surface is determined. A directional dependence of a flexibility of the feeler is determined and/or is known. The feeler and the work piece are positioned and/or oriented relative to each other, while taking into consideration the directional dependence, such that during sampling of the point of the surface unintentional slipping of the feeler on the surface does not occur, or occurs only with low probability, or an unintentional deviation of the feeler from an intended path on the surface does not occur, or occurs only with low probability.

摘要翻译： 通过由触片采样的工件的表面的至少一个点来测量工件。 探测器在表面上发出探测力，并且探测器相对于探测器的安装偏转。 基于偏转，确定表面点的位置。 确定和/或已知触觉器的灵活性的方向依赖性。 探测器和工件相对于彼此定位和/或定向，同时考虑到方向依赖性，使得在表面点的采样期间，不会发生表面上的触发器的无意滑动，或仅发生 低概率，或者不会发生触觉从表面上的预期路径的无意偏离，或仅以低概率发生。

公开(公告)号：US08825427B2

公开(公告)日：2014-09-02

申请号：US12783021

申请日：2010-05-19

申请人： Steffen Kunzmann ,  Tobias Held ,  Thomas Engel

发明人： Steffen Kunzmann ,  Tobias Held ,  Thomas Engel

IPC分类号： G01C17/38 ,  G01B21/04

CPC分类号： G01B21/042

摘要： A reference measurement object having known properties is used for the purpose of calibrating a coordinate measuring machine. A plurality of reference measured values are picked up on the reference measurement object. Calibration data are determined using the reference measured values and using the known properties of the reference measurement object. The calibration data comprises a first number of polynomial coefficients that are selected to correct nonlinear measuring errors using at least one polynomial transformation. The first number of polynomial coefficients is reduced in an iterative method to a lesser second number, with a plurality of pairs of polynomial coefficients being formed and with a polynomial coefficient of a pair being eliminated in each case when a statistical dependence between the polynomial coefficients of the pair is greater than a defined threshold value.

摘要翻译： 具有已知性质的参考测量对象被用于校准坐标测量机的目的。 在参考测量对象上拾取多个参考测量值。 使用参考测量值和使用参考测量对象的已知属性确定校准数据。 校准数据包括第一数量的多项式系数，其被选择以使用至少一个多项式变换来校正非线性测量误差。 第一数量的多项式系数以迭代方法被减少到较小的第二数目，其中形成多对多项式系数，并且在每种情况下消除一对多项式系数，当多项式系数的多项式系数之间的统计相关性 该对大于定义的阈值。

公开(公告)号：US20110096896A1

公开(公告)日：2011-04-28

申请号：US12898913

申请日：2010-10-06

申请人： Steffen KUNZMANN

发明人： Steffen KUNZMANN

IPC分类号： G01N23/04 ,  G06K9/48 ,  G06K9/00

CPC分类号： G01N23/046 ,  A61B6/027 ,  G01N2223/419

摘要： In a method for measuring mechanical workpieces by tomography, a workpiece and radiation penetrating the workpiece are moved relative to one another step-by-step. A two-dimensional image of the workpiece is generated in an imaging plane from the interaction of the workpiece and the radiation in each movement position of the workpiece. In addition, a three-dimensional representation of the workpiece is computed from the two-dimensional images. From at least two two-dimensional images showing a regular actual structure existing within the workpiece, points at a high-contrast transition are registered. A three-dimensional equivalent body is determined from the position of the points, and said equivalent body is compared to a predefined nominal structure.

摘要翻译： 在通过层析成像测量机械工件的方法中，穿过工件的工件和辐射相对于彼此逐步地移动。 工件的二维图像在工件的每个移动位置中从工件与辐射的相互作用在成像平面中产生。 此外，从二维图像计算工件的三维表示。 从显示工件内存在的规则实际结构的至少两个二维图像被记录在高对比度转变处。 从点的位置确定三维等效体，并将所述等效体与预定义的标称结构进行比较。

公开(公告)号：US08121247B2

公开(公告)日：2012-02-21

申请号：US12898913

申请日：2010-10-06

申请人： Steffen Kunzmann

发明人： Steffen Kunzmann

IPC分类号： A61B6/00

CPC分类号： G01N23/046 ,  A61B6/027 ,  G01N2223/419

摘要： In a method for measuring mechanical workpieces by tomography, a workpiece and radiation penetrating the workpiece are moved relative to one another step-by-step. A two-dimensional image of the workpiece is generated in an imaging plane from the interaction of the workpiece and the radiation in each movement position of the workpiece. In addition, a three-dimensional representation of the workpiece is computed from the two-dimensional images. From at least two two-dimensional images showing a regular actual structure existing within the workpiece, points at a high-contrast transition are registered. A three-dimensional equivalent body is determined from the position of the points, and said equivalent body is compared to a predefined nominal structure.

摘要翻译： 在通过层析成像测量机械工件的方法中，穿过工件的工件和辐射相对于彼此逐步地移动。 工件的二维图像在工件的每个移动位置中从工件与辐射的相互作用在成像平面中产生。 此外，从二维图像计算工件的三维表示。 从显示工件内存在的规则实际结构的至少两个二维图像被记录在高对比度转变处。 从点的位置确定三维等效体，并将所述等效体与预定义的标称结构进行比较。

公开(公告)号：US08045806B2

公开(公告)日：2011-10-25

申请号：US11942349

申请日：2007-11-19

申请人： Hubert Lettenbauer ,  Andreas Lotze ,  Steffen Kunzmann

发明人： Hubert Lettenbauer ,  Andreas Lotze ,  Steffen Kunzmann

IPC分类号： G06K9/00

CPC分类号： G06K9/03 ,  G06K9/00201 ,  G06K9/48 ,  G06T7/0006 ,  G06T7/12 ,  G06T2207/10081 ,  G06T2207/20168 ,  G06T2207/30164

摘要： A method and a device determine material interfaces in a test object. The novel method generates three-dimensional image data of the test object or uses already existing three-dimensional image data of the test object. Image values of the image data are, or were, obtained by invasive radiation. An evaluation line for evaluating the image data relative to the test object is determined, a location of a material interface of the test object is determined by evaluating the image data of image values along the evaluation line so that the value of the first partial derivative of the image values in the direction of the evaluation line has a local maximum at the location of the material interface.

摘要翻译： 方法和设备确定测试对象中的材质接口。 该新颖的方法生成测试对象的三维图像数据，或者使用已经存在的测试对象的三维图像数据。 或者通过侵入性辐射获得图像数据的图像值。 确定用于评估与测试对象相关的图像数据的评估线，通过评估沿着评估线的图像值的图像数据来确定测试对象的材料界面的位置，使得第一偏导数的值 在评估线的方向上的图像值在材料界面的位置具有局部最大值。

公开(公告)号：US20110191060A1

公开(公告)日：2011-08-04

申请号：US13122282

申请日：2009-09-17

申请人： Werner Lotze ,  Steffen Kunzmann ,  Tobias Held

发明人： Werner Lotze ,  Steffen Kunzmann ,  Tobias Held

IPC分类号： G06F15/00

CPC分类号： G01B21/042

摘要： A work piece is measured by at least one point of a surface of the work piece being sampled by a feeler. The feeler exerts a probing force on the surface and the feeler is deflected relative to a mounting of the feeler. On the basis of the deflection, a position of the point of the surface is determined. A directional dependence of a flexibility of the feeler is determined and/or is known. The feeler and the work piece are positioned and/or oriented relative to each other, while taking into consideration the directional dependence, such that during sampling of the point of the surface unintentional slipping of the feeler on the surface does not occur, or occurs only with low probability, or an unintentional deviation of the feeler from an intended path on the surface does not occur, or occurs only with low probability.

摘要翻译： 通过由触片采样的工件的表面的至少一个点来测量工件。 探测器在表面上发出探测力，并且探测器相对于探测器的安装偏转。 基于偏转，确定表面点的位置。 确定和/或已知触觉器的灵活性的方向依赖性。 探测器和工件相对于彼此定位和/或定向，同时考虑到方向依赖性，使得在表面点的采样期间，不会发生表面上的触发器的无意滑动，或仅发生 低概率，或者不会发生触觉从表面上的预期路径的无意偏离，或仅以低概率发生。

公开(公告)号：US20080089589A1

公开(公告)日：2008-04-17

申请号：US11942349

申请日：2007-11-19

申请人： Hubert Lettenbauer ,  Andreas Lotze ,  Steffen Kunzmann

发明人： Hubert Lettenbauer ,  Andreas Lotze ,  Steffen Kunzmann

IPC分类号： G06K9/00

CPC分类号： G06K9/03 ,  G06K9/00201 ,  G06K9/48 ,  G06T7/0006 ,  G06T7/12 ,  G06T2207/10081 ,  G06T2207/20168 ,  G06T2207/30164

摘要： A method and a device determine material interfaces in a test object. The novel method generates three-dimensional image data of the test object or uses already existing three-dimensional image data of the test object. Image values of the image data are, or were, obtained by invasive radiation. An evaluation line for evaluating the image data relative to the test object is determined, a location of a material interface of the test object is determined by evaluating the image data of image values along the evaluation line so that the value of the first partial derivative of the image values in the direction of the evaluation line has a local maximum at the location of the material interface.

摘要翻译： 方法和设备确定测试对象中的材质接口。 该新颖的方法生成测试对象的三维图像数据，或者使用已经存在的测试对象的三维图像数据。 或者通过侵入性辐射获得图像数据的图像值。 确定用于评估与测试对象相关的图像数据的评估线，通过评估沿着评估线的图像值的图像数据来确定测试对象的材料界面的位置，使得第一偏导数的值 在评估线的方向上的图像值在材料界面的位置具有局部最大值。