公开(公告)号：WO1997018436A1

公开(公告)日：1997-05-22

申请号：PCT/US1996017778

申请日：1996-11-14

Applicant: LAU, Kam, C.

IPC: G01B05/03

CPC classification number: G01B21/042 ,  G01B5/004 ,  G05B19/401 ,  G05B2219/37101 ,  G05B2219/37619 ,  G05B2219/50252

Abstract: A ballbar socket head (302) is attached to a standard tool head (304) for a CNC machine tool or like device. The socket head can then be parked on the machine tool's tool chain (316) and selectively loaded into the machine tool's spindle (318) under program control by an automatic tool change arm (320). The ballbar socket head (302) is then engaged with a telescopic ballbar attached to a base socket (308). The ballbar and base socket (308) may be peripherally located on the machine's table (310), or automatically placed on the table for test purpose by the machine tool. The ballbar test function may be automatically performed during loading and unloading of the machine, in between production runs, at downtimes, or at periodic predetermined time intervals. When the ballbar equipment is loaded, the machine tool automatically follows a predetermined controlled-motion pattern for a ballbar test. After the test, the ballbar socket head (302) is returned to the machine's tool chain (316) and the ballbar, and the base unit bar and and ballbar are moved, if appropriate. The results of the test are received by a computer and may be displayed for the operator, stored for statistical analysis, or used dynamically to recalibrate the machine's motion control. Preferably, the ballbar sensor (314) communicates with the computer using wireless methods.

Abstract translation: 一个球杆插座头（302）连接到用于CNC机床或类似装置的标准工具头（304）上。 然后，插座头可以停在机床的工具链（316）上，并通过自动换刀臂（320）在程序控制下选择性地装入机床主轴（318）。 球杆插头头部（302）然后与连接到基座（308）的伸缩式球杆接合。 球杆和底座（308）可以周边地位于机器台（310）上，或者由机床自动放置在桌子上用于测试目的。 滚珠球测试功能可以在机器的装载和卸载期间，在生产运行之间，在停机期间或以周期性的预定时间间隔自动执行。 当球杆设备加载时，机床自动遵循预定的控制运动模式进行球杆测试。 在测试之后，如果适当，球杆插座头（302）返回到机器的工具链（316）并且球杆，以及基座单元杆和球杆被移动。 测试结果由计算机接收并且可以显示给操作者，存储用于统计分析，或动态地用于重新校准机器的运动控制。 优选地，球杆传感器（314）使用无线方法与计算机通信。

公开(公告)号：WO2006023523A3

公开(公告)日：2006-03-02

申请号：PCT/US2005/029201

申请日：2005-08-16

Applicant: LAU, Kam, C. ,  LIU, Yuanqun

Inventor： LAU, Kam, C. ,  LIU, Yuanqun

IPC: G01B9/02

Abstract: An optical measurement system combines an optical interferometer (406) with an optical autocollimator (408) to increase the number of translational and yaw and pitch measurements of a reflective target (410) made with a laser (400) emitting a single laser beam (403). Translational measurements are made with a fringe counter (426) in the interferometer (406). Yaw and pitch measurements are made with a lateral effect photodiode detector (434) in the autocollimator (408). The effects of angular deviations in the returned target beam (409) may be minimized with a reverse telescopic lens assembly (428), allowing a wider range of angular measurements without significant degradation of translational measurement accuracy.

公开(公告)号：WO2008067561A3

公开(公告)日：2008-06-05

申请号：PCT/US2007/086171

申请日：2007-11-30

Applicant: LAU, Kam, C.

Inventor： LAU, Kam, C.

IPC: G01B21/02 ,  G01B11/02

Abstract: A device for measuring an interior contour of a hollow object has a probe bar (112) mounted within a ball (120) that pivots within a circular bearing (130) mounted on a base plate (132). The base plate (132) is mounted on the object above an external hole into the interior of the object with the lower end of the probe bar protruding into the object. The upper end (118) of the probe bar (112) is moved until the lower end (114) of the probe bar contacts the interior surface of the object and passes across the surface of the interior of the object. A laser tracker (100) tracks a laser target (110) mounted on the upper end of the probe bar (118), calculating the position of the lower end (114) and the contour of the interior surface from the position of the laser target (110) and known bar dimension data.

公开(公告)号：WO2006023523A2

公开(公告)日：2006-03-02

申请号：PCT/US2005029201

申请日：2005-08-16

Applicant: LAU KAM C ,  LIU YUANQUN

Inventor： LAU KAM C ,  LIU YUANQUN

IPC: G01B9/02

CPC classification number: G01B9/02068 ,  G01B2290/70

Abstract: An optical measurement system combines an optical interferometer (406) with an optical autocollimator (408) to increase the number of translational and yaw and pitch measurements of a reflective target (410) made with a laser (400) emitting a single laser beam (403). Translational measurements are made with a fringe counter (426) in the interferometer (406). Yaw and pitch measurements are made with a lateral effect photodiode detector (434) in the autocollimator (408). The effects of angular deviations in the returned target beam (409) may be minimized with a reverse telescopic lens assembly (428), allowing a wider range of angular measurements without significant degradation of translational measurement accuracy.

Abstract translation: 光学测量系统将光学干涉仪（406）与光学自动准直仪（408）组合以增加用发射单个激光束（403）的激光器（400）制成的反射目标（410）的平移和偏航以及俯仰测量的数量 ）。 利用干涉仪（406）中的条纹计数器（426）进行平移测量。 利用自动准直仪（408）中的横向效应光电二极管检测器（434）进行偏航和倾斜测量。 利用反向伸缩透镜组件（428），可以使返回的目标光束（409）中的角度偏差的影响最小化，允许更宽范围的角度测量而不会显着降低平移测量精度。

公开(公告)号：WO1997043703A1

公开(公告)日：1997-11-20

申请号：PCT/US1997008150

申请日：1997-05-09

Applicant: AUTOMATED PRECISION, INC. ,  LAU, Kam, C. ,  MA, Quanhe ,  LAU, Herbert

Inventor： AUTOMATED PRECISION, INC.

IPC: G05B19/48

CPC classification number: G05B19/404 ,  G05B2219/49194 ,  G05B2219/49206 ,  G05B2219/49209

Abstract: A machine tool is controlled through a process incorporating the steps of measuring geometric and thermal errors (102) with accurate instruments, creating a global differential wet model of machine tool position (104) and using this model to control real time compensation of machine tool operation. A controller modifies (112) encoder-type position feedback signals used by the machine to compensate for geometric and thermal errors in the manner dictated by the global differential wet model.

Abstract translation: 机床通过包含精密仪器测量几何和热误差（102）的步骤进行控制，创建机床位置（104）的全局差分湿式模型，并使用该模型控制机床操作的实时补偿 。 控制器修改（112）机器使用的编码器型位置反馈信号，以按照全局差分湿模型规定的方式补偿几何和热误差。

公开(公告)号：WO2008067561A2

公开(公告)日：2008-06-05

申请号：PCT/US2007086171

申请日：2007-11-30

Applicant: LAU KAM C

Inventor： LAU KAM C

IPC: G01B21/02 ,  G01B11/02

CPC classification number: G01B5/12 ,  G01B5/20 ,  G01B11/12 ,  G01B11/24

Abstract: A device for measuring an interior contour of a hollow object has a probe bar (112) mounted within a ball (120) that pivots within a circular bearing (130) mounted on a base plate (132). The base plate (132) is mounted on the object above an external hole into the interior of the object with the lower end of the probe bar protruding into the object. The upper end (118) of the probe bar (112) is moved until the lower end (114) of the probe bar contacts the interior surface of the object and passes across the surface of the interior of the object. A laser tracker (100) tracks a laser target (110) mounted on the upper end of the probe bar (118), calculating the position of the lower end (114) and the contour of the interior surface from the position of the laser target (110) and known bar dimension data.

Abstract translation: 用于测量中空物体的内部轮廓的装置具有安装在球体（120）内的探针杆（112），其在安装在基板（132）上的圆形轴承（130）内枢转。 底板（132）在探针杆的下端突出到物体中的状态下，安装在物体上方的物体上方的物体内部。 探针杆（112）的上端（118）移动直到探针杆的下端（114）接触物体的内表面并穿过物体内部的表面。 激光跟踪器（100）跟踪安装在探针杆（118）的上端上的激光靶（110），从激光靶的位置计算下端（114）的位置和内表面的轮廓 （110）和已知的条尺寸数据。

公开(公告)号：WO2004019459A3

公开(公告)日：2004-03-04

申请号：PCT/US2003/026493

申请日：2003-08-26

Applicant: LAU, Kam, C.

Inventor： LAU, Kam, C.

IPC: G01B11/26

Abstract: A laser based tracking unit (100) communicates with a target (150) to obtain position information about the target . Specifically, the target (150) is placed at the point to be measured. The pitch, yaw and roll movements of the target (150) , and the spherical coordinates of the target relative to the tracking unit are then obtained (200). The target can be, for example, an active device incorporated into a moveable device such as a remote controlled robot.

公开(公告)号：WO2004019459A8

公开(公告)日：2005-02-17

申请号：PCT/US0326493

申请日：2003-08-26

Applicant: LAU KAM C

Inventor： LAU KAM C

IPC: G01B11/00 ,  G01B11/26 ,  G01C15/00 ,  G01S5/16 ,  G01S7/499 ,  G01S17/66 ,  G05B1/00 ,  H01S20060101

CPC classification number: G01C15/002 ,  G01B11/002 ,  G01S5/163 ,  G01S7/499 ,  G01S17/66

Abstract: A laser based tracking unit (100) communicates with a target (150) to obtain position information about the target . Specifically, the target (150) is placed at the point to be measured. The pitch, yaw and roll movements of the target (150) , and the spherical coordinates of the target relative to the tracking unit are then obtained (200). The target can be, for example, an active device incorporated into a moveable device such as a remote controlled robot.

Abstract translation: 基于激光的跟踪单元（100）与目标（150）通信以获得关于目标的位置信息。 具体地说，目标（150）被放置在要测量的点上。 然后获得目标（150）的俯仰，偏转和滚动运动以及目标相对于跟踪单元的球坐标（200）。 目标可以是例如并入到诸如远程控制的机器人的可移动设备中的活动设备。