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公开(公告)号:US20120323345A1
公开(公告)日:2012-12-20
申请号:US13581557
申请日:2011-03-04
Applicant: Kevyn Barry Jonas , Geoffrey Mcfarland , Peter Russell Hammond , Anthony Brown
Inventor: Kevyn Barry Jonas , Geoffrey Mcfarland , Peter Russell Hammond , Anthony Brown
IPC: G05B19/18
CPC classification number: G01B21/045 , B33Y80/00
Abstract: An error correction method for coordinate positioning apparatus is described. The method comprises (i) taking a first data set comprising one or more first data values, each first data value describing a position on the surface of a first object, (ii) taking a second data set comprising one or more second data values, each second data value describing a position on the surface of the first object, and (iii) calculating an error map comprising one or more error values, each error value describing a positional difference between the surface as described by the first data set and the surface as described by the second data set. The surface normal of the first object is known at each position described by each first data value and step (iii) comprises calculating each error value by determining the positional difference substantially in the direction of the known surface normal.
Abstract translation: 描述了坐标定位装置的纠错方法。 该方法包括:(i)获取包括一个或多个第一数据值的第一数据集,每个第一数据值描述第一对象的表面上的位置,(ii)获取包括一个或多个第二数据值的第二数据集, 每个第二数据值描述第一对象的表面上的位置,以及(iii)计算包括一个或多个误差值的误差图,每个误差值描述由第一数据组和表面之间描述的表面之间的位置差异 如第二数据集所描述的。 第一对象的表面法线在每个第一数据值描述的每个位置处是已知的,并且步骤(iii)包括通过确定基本上在已知表面法线的方向上的位置差异来计算每个误差值。
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公开(公告)号:US07318284B2
公开(公告)日:2008-01-15
申请号:US10581604
申请日:2004-12-16
Applicant: David Roberts McMurtry , Geoffrey McFarland , Kevyn Barry Jonas
Inventor: David Roberts McMurtry , Geoffrey McFarland , Kevyn Barry Jonas
CPC classification number: G01B21/042 , G01B21/045
Abstract: A method of measuring an object with a coordinate positioning apparatus, comprises the following steps: placing the object within the working volume of the coordinate positioning apparatus; measuring the object with a workpiece contacting probe to create measurement data of the object, the measurement data being collected at multiple probe forces; for at least one location on the surface of the object, determining a function or look up table relating the measurement error data to the probe force; for said at least one location on the surface of the object, using the function or look up table to determine the measurement data corresponding to zero probe force; and outputting the measurement data corresponding to zero probe force as the measurement of the object.
Abstract translation: 使用坐标定位装置测量物体的方法包括以下步骤:将物体放置在坐标定位装置的工作体积内; 用工件接触探头测量物体以产生物体的测量数据,测量数据以多个探测力收集; 对于物体表面上的至少一个位置,确定将测量误差数据与探针力相关联的功能或查找表; 对于所述物体表面上的所述至少一个位置,使用所述功能或查找表来确定对应于零探针力的测量数据; 并将对应于零探针力的测量数据作为对象的测量输出。
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公开(公告)号:US07971365B2
公开(公告)日:2011-07-05
申请号:US12224657
申请日:2007-03-23
Applicant: Stephen Paul Hunter , Geoffrey McFarland , Kevyn Barry Jonas , Khaled Mamour
Inventor: Stephen Paul Hunter , Geoffrey McFarland , Kevyn Barry Jonas , Khaled Mamour
CPC classification number: G01B21/04
Abstract: A method and apparatus for measuring a surface using a surface sensing device mounted on a scanning head on a member of a coordinate positioning apparatus. The coordinate positioning apparatus may be operated to produce relative movement between the scanning head and the surface profile and the scanning head includes a drive for producing rotational movement of the surface sensing probe about one or more axis. The coordinate positioning apparatus is driven to provide relative movement between the member and the surface profile in a circular path and the probe head is driven to move the surface sensing device about said one or more axes, such that the surface sensing device maintains a nominally constant lead angle. The motion of the coordinate positioning apparatus and probe head is synchronous.
Abstract translation: 一种用于使用安装在坐标定位装置的构件上的扫描头上的表面感测装置来测量表面的方法和装置。 坐标定位装置可以被操作以在扫描头和表面轮廓之间产生相对运动,并且扫描头包括用于产生表面感测探头围绕一个或多个轴的旋转运动的驱动器。 驱动坐标定位装置以在圆形路径中提供构件和表面轮廓之间的相对运动,并且驱动探针头以围绕所述一个或多个轴移动表面感测装置,使得表面感测装置保持名义上恒定 导程角 坐标定位装置和探头的运动是同步的。
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公开(公告)号:US07861430B2
公开(公告)日:2011-01-04
申请号:US12223656
申请日:2007-02-14
Applicant: Kevyn Barry Jonas , Geoffrey McFarland , Nicholas John Weston , Colin Ray Bulled
Inventor: Kevyn Barry Jonas , Geoffrey McFarland , Nicholas John Weston , Colin Ray Bulled
CPC classification number: G01B5/0014 , G01B21/045
Abstract: Apparatus for a co-ordinate positioning machine is described that comprises an articulating probe head for supporting a measurement probe. The articulating probe head comprises at least one electric motor. Heating means are provided for generating heat in the articulating probe head. The heating means may be the motors or discrete heating elements. Temperature sensing means, such as one or more temperature sensors, is also provided for determining the temperature at the articulating probe head. The apparatus allows the temperature of the articulating probe head to be controlled.
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公开(公告)号:US20100011600A1
公开(公告)日:2010-01-21
申请号:US12224657
申请日:2007-03-23
Applicant: Stephen Paul Hunter , Geoffrey McFarland , Kevyn Barry Jonas , Khaled Mamour
Inventor: Stephen Paul Hunter , Geoffrey McFarland , Kevyn Barry Jonas , Khaled Mamour
CPC classification number: G01B21/04
Abstract: A method and apparatus for measuring a surface using a surface sensing device mounted on a scanning head on a member of a coordinate positioning apparatus. The coordinate positioning apparatus may be operated to produce relative movement between the scanning head and the surface profile and the scanning head includes a drive for producing rotational movement of the surface sensing probe about one or more axis. The coordinate positioning apparatus is driven to provide relative movement between the member and the surface profile in a circular path and the probe head is driven to move the surface sensing device about said one or more axes, such that the surface sensing device maintains a nominally constant lead angle. The motion of the coordinate positioning apparatus and probe head is synchronous.
Abstract translation: 一种用于使用安装在坐标定位装置的构件上的扫描头上的表面感测装置来测量表面的方法和装置。 坐标定位装置可以被操作以在扫描头和表面轮廓之间产生相对运动,并且扫描头包括用于产生表面感测探头围绕一个或多个轴的旋转运动的驱动器。 驱动坐标定位装置以在圆形路径中提供构件和表面轮廓之间的相对运动,并且驱动探针头以围绕所述一个或多个轴移动表面感测装置,使得表面感测装置保持名义上恒定 导程角 坐标定位装置和探头的运动是同步的。
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公开(公告)号:US20090030648A1
公开(公告)日:2009-01-29
申请号:US12224654
申请日:2007-03-23
Applicant: Stephen Paul Hunter , Geoffrey McFarland , Kevyn Barry Jonas , Khaled Mamour
Inventor: Stephen Paul Hunter , Geoffrey McFarland , Kevyn Barry Jonas , Khaled Mamour
IPC: G01B5/008
CPC classification number: G01B21/04
Abstract: A method and apparatus for measuring a surface using a surface sensing device mounted on a scanning head on a member of a coordinate positioning apparatus. The coordinate positioning apparatus may be operated to produce relative movement between the scanning head and the surface profile and the scanning head includes a drive for producing rotational movement of the surface sensing probe about one or more axis. A desired measurement profile on the surface which the surface sensing device will track and the desired motion of the orientation of the surface sensing device as the surface' sensing device follows the measurement profile are defined. This data is used to derive the required path of the relative motion between the member of the coordinate positioning apparatus and the surface, such that the surface sensing device prescribes a trajectory along the measurement profile.
Abstract translation: 一种用于使用安装在坐标定位装置的构件上的扫描头上的表面感测装置来测量表面的方法和装置。 坐标定位装置可以被操作以在扫描头和表面轮廓之间产生相对运动,并且扫描头包括用于产生表面感测探头围绕一个或多个轴的旋转运动的驱动器。 定义表面感测装置将要跟踪的表面上期望的测量轮廓以及表面感测装置跟随测量轮廓的表面感测装置的取向的期望运动。 该数据用于导出坐标定位装置的构件和表面之间的相对运动的所需路径,使得表面感测装置规定沿着测量轮廓的轨迹。
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公开(公告)号:US09541385B2
公开(公告)日:2017-01-10
申请号:US13581557
申请日:2011-03-04
Applicant: Kevyn Barry Jonas , Geoffrey McFarland , Peter Russell Hammond , Anthony Brown
Inventor: Kevyn Barry Jonas , Geoffrey McFarland , Peter Russell Hammond , Anthony Brown
CPC classification number: G01B21/045 , B33Y80/00
Abstract: An error correction method for coordinate positioning apparatus is described. The method comprises (i) taking a first data set comprising one or more first data values, each first data value describing a position on the surface of a first object, (ii) taking a second data set comprising one or more second data values, each second data value describing a position on the surface of the first object, and (iii) calculating an error map comprising one or more error values, each error value describing a positional difference between the surface as described by the first data set and the surface as described by the second data set. The surface normal of the first object is known at each position described by each first data value and step (iii) comprises calculating each error value by determining the positional difference substantially in the direction of the known surface normal.
Abstract translation: 描述了坐标定位装置的纠错方法。 该方法包括:(i)获取包括一个或多个第一数据值的第一数据集,每个第一数据值描述第一对象的表面上的位置,(ii)获取包括一个或多个第二数据值的第二数据集, 每个第二数据值描述第一对象的表面上的位置,以及(iii)计算包括一个或多个误差值的误差图,每个误差值描述由第一数据组和表面之间描述的表面之间的位置差异 如第二数据集所描述的。 第一对象的表面法线在每个第一数据值描述的每个位置处是已知的,并且步骤(iii)包括通过确定基本上在已知表面法线的方向上的位置差异来计算每个误差值。
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公开(公告)号:US08931183B2
公开(公告)日:2015-01-13
申请号:US13581594
申请日:2011-02-28
Applicant: Kevyn Barry Jonas
Inventor: Kevyn Barry Jonas
CPC classification number: G01B21/042 , G01B5/008 , G01B21/045
Abstract: A method of operating coordinate positioning apparatus having a measurement probe includes taking a first part in a series of parts, at least a first reference geometrical property associated with one or more features of the first part being known and using the coordinate positioning apparatus to measure the one or more features of the first part and determining a first measured geometrical property corresponding to the first reference geometrical property. A first property correction value is then determined describing a difference between the first reference and the first measured geometrical properties. The coordinate positioning apparatus is then used to measure the one or more features of one or more further parts in the series of parts and, for each further part, a further measured geometrical property is determined corresponding to the first reference geometrical property. The first property correction value is then applied to each further measured geometrical property.
Abstract translation: 操作具有测量探针的坐标定位装置的方法包括:将一部分中的第一部分取入至少与第一部分的一个或多个特征相关联的至少第一参考几何特性,并使用坐标定位装置来测量 确定第一部分的一个或多个特征并确定对应于第一参考几何特性的第一测量几何特性。 然后确定描述第一参考和第一测量几何特性之间的差的第一属性校正值。 然后,坐标定位装置用于测量该系列零件中的一个或多个其他部件的一个或多个特征,并且对于每个其它部件,对应于第一参考几何属性确定进一步测量的几何特性。 然后将第一属性校正值应用于每个进一步测量的几何属性。
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公开(公告)号:US20110043827A1
公开(公告)日:2011-02-24
申请号:US12926102
申请日:2010-10-26
Applicant: Geoffrey McFarland , Kevyn Barry Jonas
Inventor: Geoffrey McFarland , Kevyn Barry Jonas
CPC classification number: G01B11/007
Abstract: A surface sensing device for use in position determining apparatus has an elongate stylus with a tip for scanning the surface of a workpiece to be measured. Lateral displacements of the stylus tip are detected by a light beam which passes along the stylus from a light source to a retroreflector. This reflects the beam back via a beamsplitter to a position sensitive detector. The stylus is mounted for longitudinal displacement on a carriage. The longitudinal displacement is measured by another light beam projected by the beamsplitter onto a second position sensitive detector.
Abstract translation: 用于位置确定装置的表面检测装置具有细长的触针,其具有用于扫描要测量的工件的表面的尖端。 触针尖端的横向位移由沿着手指从光源传递到后向反射器的光束来检测。 这通过分束器将光束反射回到位置敏感检测器。 触针安装用于在滑架上纵向移动。 纵向位移由分束器投影的另一个光束测量到第二位置敏感检测器上。
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公开(公告)号:US07885777B2
公开(公告)日:2011-02-08
申请号:US11918492
申请日:2006-04-25
Applicant: Kevyn Barry Jonas , Jean-Louis Grzesiak , Geoffrey McFarland
Inventor: Kevyn Barry Jonas , Jean-Louis Grzesiak , Geoffrey McFarland
CPC classification number: G01B21/042
Abstract: A method of calibrating a probe is disclosed said probe being mounted on a machine and having a stylus with a workpiece contacting tip, comprising calculating calibration information for the probe for a first orientation of the probe, and rotating the calibration information by an angle to obtain a probe calibration information for when the probe is oriented by that angle with respect to the first orientation. Also disclosed is a method of calibrating a probe during a measurement process. The calibration information may include a vector which relates probe head axes to machine axes; a calibration matrix; datum data; an inertial matrix. The stylus tip may be datumed at the orientation of the probe or inferred from datum information obtained at different orientations. The rotation step may be carried out by a software/computer program which may be stored on a controller for the machine.
Abstract translation: 公开了一种校准探针的方法,所述探针安装在机器上并具有与工件接触尖端的触针,包括针对探针的第一取向计算用于探针的校准信息,并且旋转校准信息一角度以获得 探针校准信息,用于当探针相对于第一取向定向到该角度时。 还公开了在测量过程中校准探针的方法。 校准信息可以包括将探头头轴与加工轴相关联的向量; 校准矩阵; 基准数据; 惯性矩阵。 触针尖端可以在探针的方向上预测,或者从以不同取向获得的基准信息推断。 旋转步骤可以由可以存储在机器的控制器上的软件/计算机程序来执行。
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