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Title: Low-cost precision rotary index calibration
Authors: Ng, T.W. 
Lim, T.S.
Keywords: Angular rotation
Machine tools
Precision measurements
Rotary indexers
Issue Date: 2005
Citation: Ng, T.W.,Lim, T.S. (2005). Low-cost precision rotary index calibration. Proceedings of SPIE - The International Society for Optical Engineering 5879 : 1-8. ScholarBank@NUS Repository.
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.
Source Title: Proceedings of SPIE - The International Society for Optical Engineering
ISSN: 0277786X
DOI: 10.1117/12.614783
Appears in Collections:Staff Publications

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