A new five degree-of-freedom measurement method and system

Fengling You; Qibo Feng; Bin Zhang

doi:10.1117/12.811951

28 January 2009 A new five degree-of-freedom measurement method and system

Fengling You, Qibo Feng, Bin Zhang

Proceedings Volume 7156, 2008 International Conference on Optical Instruments and Technology: Optical Systems and Optoelectronic Instruments; 715634 (2009) https://doi.org/10.1117/12.811951
Event: International Conference of Optical Instrument and Technology, 2008, Beijing, China

Abstract

In this paper, a newly developed system for simultaneously measuring five-degree-of-freedom errors of machine tools is introduced. A single-mode fiber-coupled laser module is used to eliminate the beam drift of the laser source. Only a cube corner retro-reflector and a beam splitter are adopted in the moving target in order to sense the straightness errors and angle errors (pitch and yaw) respectively and simultaneously. A special prism (including a beam-splitter facet and an all-reflecting facet) was adopted to measure the roll. A simple common-path compensation method for laser beam drift is put forward, and a 2D position-sensitive detector and a lens are used to monitor angular drift of the laser beam. It is convenient to measure the parameters of the numerical control machine in workshop due to non-cable connecting between moving target and measurement head. The error analysis and theory analysis of roll which provide potent theoretical guidance in the future are given in detail.

Citation Download Citation

Fengling You, Qibo Feng, and Bin Zhang "A new five degree-of-freedom measurement method and system", Proc. SPIE 7156, 2008 International Conference on Optical Instruments and Technology: Optical Systems and Optoelectronic Instruments, 715634 (28 January 2009); https://doi.org/10.1117/12.811951

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