A novel optical technique for measuring 5-axis surface movement

Weixin Zhao; John Wu; B. Terry Beck

doi:10.1117/12.571463

16 December 2004 A novel optical technique for measuring 5-axis surface movement

Weixin Zhao, John Wu, B. Terry Beck

Proceedings Volume 5606, Two- and Three-Dimensional Vision Systems for Inspection, Control, and Metrology II; (2004) https://doi.org/10.1117/12.571463
Event: Optics East, 2004, Philadelphia, Pennsylvania, United States

Abstract

This paper describes a novel optical system capable of measuring 5-axis (five degrees of freedom) object surface movement without the need for special surface preparation or stringent alignment. The compact optical system is based on electronic speckle photography (ESP) and is designed to be insensitive to out-of-plane movement. Experiments were conducted to measure the 5-axis motion simulated by a 6-axis motion system. The results show that the optical system accurately resolves the motion on every axis successfully, with the expected insensitivity to out-of-plane displacements. A possible application of the technique in strain measurement is also addressed in the paper.

Citation Download Citation

Weixin Zhao, John Wu, and B. Terry Beck "A novel optical technique for measuring 5-axis surface movement", Proc. SPIE 5606, Two- and Three-Dimensional Vision Systems for Inspection, Control, and Metrology II, (16 December 2004); https://doi.org/10.1117/12.571463

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