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Proceedings Paper

A displacement reconstruction algorithm used for optical feedback self mixing interferometry system under different feedback levels
Author(s): Yuanlong Fan; Yanguang Yu; Jiangtao Xi; Joe F. Chicharo; Huiying Ye
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Paper Abstract

Displacement information of a moving target can be detected using an optical feedback self-mixing interferometry (OFSMI) system. A sensing signal observed from the OFSMI system is called self-mixing signal (SMS). The paper studies the waveform features of the SMSs and proposes an algorithm for reconstructing the displacement of a moving target. The reconstruction accuracy of the algorithm mainly depends on the locating accuracy for those characteristic points on a SMS. A set of rules for identifying those characteristic points are described in the paper. The proposed algorithm is verified by simulation signals firstly, and then applied on extensive SMSs which are obtained from the experimental set-up. The results show that the displacement of the external moving target can be reconstructed under different feedback levels.

Paper Details

Date Published: 11 November 2010
PDF: 7 pages
Proc. SPIE 7855, Optical Metrology and Inspection for Industrial Applications, 78550L (11 November 2010); doi: 10.1117/12.870051
Show Author Affiliations
Yuanlong Fan, Univ. of Wollongong (Australia)
Yanguang Yu, Univ. of Wollongong (Australia)
Jiangtao Xi, Univ. of Wollongong (Australia)
Joe F. Chicharo, Univ. of Wollongong (Australia)
Huiying Ye, Zhengzhou Univ. (China)

Published in SPIE Proceedings Vol. 7855:
Optical Metrology and Inspection for Industrial Applications
Kevin Harding; Peisen S. Huang; Toru Yoshizawa, Editor(s)

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