ACCURACY ASSESSMENT OF A LASER TRACKER SYSTEM

Robert Kupiec, Rafal Dubno, Jerzy Sladek
Abstract:
Choosing the right laser tracker system for large-scale metrology is not easy. Currently on the market there are several manufacturers of laser tracker systems, such as: Leica, Faro, API and Nikon. What is new is the Etalon LaserTracer. They differ in terms of construction, application and also the accuracy of the system. What is more there is no one common international standard for the evaluation of their accuracy. The international standard is currently under preparation. So the accuracy of laser tracker systems are provided in a many different way by manufacturers. Therefore, there is a need to determine as soon as possible a common method for testing laser tracker systems.
One of the possibilities for testing the accuracy of laser trackers is test according to ISO 10360-2:2009 and ISO 10360-5:2010. These standards allow to evaluate the error of indication of calibrated test length and errors of a probing system. Unfortunately, these standards do not fully take into account the characteristics of coordinate measuring systems such as laser trackers. Therefore it is necessary to adapt their to test the performance of laser trackers.
The paper presents the method for testing the performance of laser tracker systems according to ISO 10360-2:2009 and ISO 10360-5:2010 to fully fit laser trackers requirements. For test API laser tracker with two standards (calibrated standard of length and calibrated sphere) was used. The paper shows the measurement method, the results of the measurements and the conclusions of the study.
Keywords:
CMM-metrology, laser tracker, calibration, accuracy, large-scale metrology
Download:
IMEKO-TC14-2013-57.pdf
DOI:
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Event details
IMEKO TC:
TC14
Event name:
TC14 ISMQC 2013
Title:

11th International Symposium on Measurement and Quality Control

Place:
Cracow and Kielce, POLAND
Time:
11 September 2013 - 13 September 2013