A Self-Mixing Interference Displacement Measurement Algorithmwith Fringe-Loss Phenomenon and Compensation
[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/j.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
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
- Keywords:
- displaeement measurement; lang-kobayashi equalion; high feedback regime; fringe-loss compensation
- CLC:
- TN249
- 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.
- References:
- -
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