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Proceedings Paper

Low-cost precision rotary index calibration
Author(s): T. W. Ng; T. S. Lim
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Paper Abstract

The traditional method for calibrating angular indexing repeatability of rotary axes on machine tools and measuring equipment is with a precision polygon (usually 12 sided) and an autocollimator or angular interferometer. Such a setup is typically expensive. Here, we propose a far more cost-effective approach that uses just a laser, diffractive optical element, and CCD camera. We show that significantly high accuracies can be achieved for angular index calibration.

Paper Details

Date Published: 18 August 2005
PDF: 6 pages
Proc. SPIE 5879, Recent Developments in Traceable Dimensional Measurements III, 58790C (18 August 2005); doi: 10.1117/12.614783
Show Author Affiliations
T. W. Ng, National Univ. of Singapore (Singapore)
T. S. Lim, Hongguan Systems (S) Pte Ltd (Singapore)


Published in SPIE Proceedings Vol. 5879:
Recent Developments in Traceable Dimensional Measurements III
Jennifer E. Decker; Gwo-Sheng Peng, Editor(s)

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