Automatic laser tracking interferometer system for robot metrology

Lau, K.; Hocken, Robert J.; Haight, W.C.

doi:10.1016/0141-6359(86)90002-4

Cited by 144 publications

(78 citation statements)

References 3 publications

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“…The outline of experimental setup using these apparatuses is shown in Fig. 1 The basic measuring principle of laser tracking system is based on that proposed by Lau (Lau, 1986). A laser beam is emitted and reflected by a tracking mirror, which is installed in the reference point and is rotated around two axes.…”

Section: Robot Arm and Position Measurement Systemmentioning

confidence: 99%

Selection of Optimal Measuring Points Using Genetic Algorithm in the Process to Calibrate Robot Kinematic Parameters

Aoyagi¹

2012

Genetic Algorithms in Applications

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Section: Robot Arm and Position Measurement Systemmentioning

confidence: 99%

Selection of Optimal Measuring Points Using Genetic Algorithm in the Process to Calibrate Robot Kinematic Parameters

Aoyagi¹

2012

Genetic Algorithms in Applications

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“…Threedimensional position measurement of the TCP can be done by conventional commercial laser trackers, from, e.g., Leica Geosystems, Faro, and Automated Precision Inc. (API), by measuring the distance (displacement) to the target and the direction of the laser beam [94,95]. Since its angular measurement uncertainty directly contributes to the measuring uncertainty of the target's position, it is typically difficult to ensure its measuring uncertainty small enough to evaluate machine tools.…”

Section: Tracking Interferometermentioning

confidence: 99%

Indirect Measurement of Volumetric Accuracy for Three-Axis and Five-Axis Machine Tools: A Review

Ibaraki¹,

Knapp²

2012

Int. J. Automation Technol.

225

100

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The volumetric accuracy of machine tools is represented by a map of position and orientation error vectors of the tool over the volume concerned. Numerical compensation for volumetric error is possible in many latest commercial CNCs for machine tools. This paper reviews indirect measurement schemes for machine tool kinematics, in which the tool center position is measured as the superposition of error motions of linear or rotary axes. Each error motion can be separately identified by best-fitting a set of measured tool center positions to the kinematic model of machine tools. Indirect measurement schemes for the kinematics of three orthogonal linear axes, as well as the fiveaxis kinematics with two rotary axes, will be reviewed.

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“…Although multi-DOF measurement systems can distinctly decrease the test time, the measurable range is usually smaller than a meter. Laser Tracker [5,6] and LaserTRACER [7][8][9] both belong to a kind of ATLI. The comparison of the measurement accuracy/uncertainty for different types of ATLIs is shown in Table 1.…”

Section: Introductionmentioning

confidence: 99%

Relationship between ISO 230-2/-6 Test Results and Positioning Accuracy of Machine Tools Using LaserTRACER

et al. 2016

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Abstract:To test the positioning accuracy and repeatability of the linear axes of machine tools, ISO (International Standards Organization) 230-2 and ISO 230-6 are usually adopted. Auto-tracking laser interferometers (ATLI) can perform the testing for the positioning accuracy and the repeatability including x-, y-and z-axes according to ISO 230-2 as well as xy, xz, yz, and xyz diagonal lines following ISO 230-6. LaserTRACER is a kind of ATLI. One of the steps of the ISO 230-2 and -6 tests using LaserTRACER is to determine the coordinate of the LaserTRACER with respect to the home point of the machine tool. Positioning accuracy of the machine tool causes the coordinate determined error, which might influence the test result. To check on this error, this study performs three experiments. The experiment results show that the positioning error appears on the testing results.

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Automatic laser tracking interferometer system for robot metrology

Cited by 144 publications

References 3 publications

Selection of Optimal Measuring Points Using Genetic Algorithm in the Process to Calibrate Robot Kinematic Parameters

Selection of Optimal Measuring Points Using Genetic Algorithm in the Process to Calibrate Robot Kinematic Parameters

Indirect Measurement of Volumetric Accuracy for Three-Axis and Five-Axis Machine Tools: A Review

Relationship between ISO 230-2/-6 Test Results and Positioning Accuracy of Machine Tools Using LaserTRACER

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