Low-cost precision rotary index calibration

T. W. Ng; T. S. Lim

doi:10.1117/12.614783

18 August 2005 Low-cost precision rotary index calibration

T. W. Ng, T. S. Lim

Proceedings Volume 5879, Recent Developments in Traceable Dimensional Measurements III; 58790C (2005) https://doi.org/10.1117/12.614783
Event: Optics and Photonics 2005, 2005, San Diego, California, United States

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.

Citation Download Citation

T. W. Ng and T. S. Lim "Low-cost precision rotary index calibration", Proc. SPIE 5879, Recent Developments in Traceable Dimensional Measurements III, 58790C (18 August 2005); https://doi.org/10.1117/12.614783

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