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Proceedings Paper

An estimation method for feedback level factor C of a self-mixing interferometry system
Author(s): Yuanlong Fan; Yanguang Yu; Jiangtao Xi; Joe F. Chicharo
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Paper Abstract

This paper presents a fast estimation method for feedback level factor C of a self-mixing interferometry (SMI) system. The reconstruction of a displacement waveform using a SMI signal needs to know a C value. However, it is difficult to maintain a constant C value during the reconstruction process. We study the features of the reconstructed displacement waveforms incorporating different pre-set C values and classify waveforms into two types. Bisection method is introduced in our method for fast estimating C value. The effectiveness of our proposed method has been verified by both simulation and experimental data.

Paper Details

Date Published: 9 November 2010
PDF: 7 pages
Proc. SPIE 7853, Advanced Sensor Systems and Applications IV, 78530E (9 November 2010); doi: 10.1117/12.870052
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)


Published in SPIE Proceedings Vol. 7853:
Advanced Sensor Systems and Applications IV
Brian Culshaw; Yanbiao Liao; Anbo Wang; Xiaoyi Bao; Xudong Fan; Lin Zhang, Editor(s)

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