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Proceedings Paper

Evaluation of the performance of a novel laser tracker used for coordinate measurements
Author(s): Sonko Osawa; Toshiyuki Takatsuji; Jiang Hong; Hironori Noguchi; Tomizo Kurosawa
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Paper Abstract

A laser tracking interferometer system (LTS), which can measure 3D coordinates, has been developed in our laboratory. The LTS makes use of the principle of laser trilateration. The principle satisfies Abbe's principles and the coordinates are calculated solely form length measurements. Consequently, measurements directly traceable to length standard can be achieved. The first generation trackers, however, were large, heavy and not so accurate. So, we developed a compact, accurate laser tracker. It has a hemisphere mirror, which is used as a tracking mirror and is driven by an X-Y moving table. The performance of this laser tracker was checked by a high precision coordinate measuring machine. The results of the experiments show that the displacement measuring error of this laser tracker is below 0.6 micrometers , which is much better than any other conventional laser trackers.

Paper Details

Date Published: 22 October 2001
PDF: 9 pages
Proc. SPIE 4401, Recent Developments in Traceable Dimensional Measurements, (22 October 2001); doi: 10.1117/12.445613
Show Author Affiliations
Sonko Osawa, National Institute of Advanced Industrial Science and Technology (Japan)
Toshiyuki Takatsuji, National Institute of Advanced Industrial Science and Technology (Japan)
Jiang Hong, Excel Precision Co. (United States)
Hironori Noguchi, National Institute of Advanced Industrial Science and Technology (Japan)
Tomizo Kurosawa, National Institute of Advanced Industrial Science and Technology (Japan)


Published in SPIE Proceedings Vol. 4401:
Recent Developments in Traceable Dimensional Measurements

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