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A portable instrument for 3-D dynamic robot measurements using triangulation and laser tracking

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2 Author(s)
Mayer, J.R.R. ; Dept. of Mech. Eng., Ecole Polytech. de Montreal, Que., Canada ; Parker, G.A.

The paper describes the development and validation of a 3-D measurement instrument capable of determining the static and dynamic performance of industrial robots to ISO standards. Using two laser beams to track an optical target attached to the robot end-effector, the target position coordinates may be estimated, relative to the instrument coordinate frame, to a high accuracy using triangulation principles. The effect of variations in the instrument geometry from the nominal model is evaluated through a kinematic model of the tracking head. Significant improvements of the measurement accuracy are then obtained by a simple adjustment of the main parameters. Extensive experimental test results are included to demonstrate the instrument performance. Finally typical static and dynamic measurement results for an industrial robot are presented to illustrate the effectiveness and usefulness of the instrument

Published in:

Robotics and Automation, IEEE Transactions on  (Volume:10 ,  Issue: 4 )