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A laser tracking robot‐performance calibration system using ball‐seated bearing mechanisms and a spherically shaped cat’s‐eye retroreflector

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6 Author(s)
Nakamura, Osamu ; National Research Laboratory of Metrology, 1‐1‐4 Umezono, Tsukuba 305, JapanNational Institute for Advanced Interdisciplinary Research, 1‐1‐4 Higashi, Tsukuba 305, Japan ; Goto, Mitsuo ; Toyoda, Kouji ; Takai, Nozomi
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Your organization might have access to this article on the publisher's site. To check, click on this link:http://dx.doi.org/+10.1063/1.1145104 

A new robot‐performance calibration system based on tracking multilaser trilateration has been developed. To realize 1 μm coordinate accuracy, a beam‐deflecting tracking mechanism with both a ball‐seated bearing and a spherically shaped cat’s eye retroreflector whose refractive index is 2.0 has been developed. The coordinate error and the repeatability of a commercial industrial robot have been verified by the system we developed in a two‐dimensional plane.

Published in:

Review of Scientific Instruments  (Volume:65 ,  Issue: 4 )

Date of Publication:

Apr 1994

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