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A Self-Mixing Interference Displacement Measurement Algorithmwith Fringe-Loss Phenomenon and Compensation
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[1]YE Huiying,ZHU Junyao,WANG Zhenxue.A Self-Mixing Interference Displacement Measurement Algorithmwith Fringe-Loss Phenomenon and Compensation[J].Journal of Zhengzhou University (Engineering Science),2014,35(06):56-59.[doi:10.3969/i.issn.1671-6833.2014.06.014]
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Journal of Zhengzhou University (Engineering Science)[ISSN 1671-6833/CN 41-1339/T] Volume: 35卷 Number of periods: 2014 06 Page number: 56-59 Column: Public date: 2014-11-25
Title:
A Self-Mixing Interference Displacement Measurement Algorithmwith Fringe-Loss Phenomenon and Compensation
Author(s):
YE Huiying; ZHU Junyao; WANG Zhenxue
School of Information Engineering, Zhengzhou University, Zhengzhou 450001, China
Keywords:
displaeement measurement;  lang-kobayashi equalion;  high feedback regime;  fringe-loss compensation
CLC:
TN249
DOI:
10.3969/i.issn.1671-6833.2014.06.014
Abstract:
The disappearanee of self-mixing interlerenee fringes in the high feedbaek-regime decreases thelisplacement measurement aeeuraey. The proposed method based on Lang-Kobayashi equation deteets thefringe-loss with a large oplical feedback faetor C. And the relationship between C and m which represents thenumber of fringe-loss in half cyele is oblained: C<4.6,m=0:4.6≤C<4.8,m=1:4.8≤C<7.9.m=2. Aself-mixing interferenee displaeement measurement algorithm is presented that is able to remedy the inllueneeof fringe-loss. The measurement accuraey is improved greatly.
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