Research on homodyne interferometric angle measurement based on ellipse fitting

Cuiting Yang; Zhao Cui; Xue Wang; Fanchao Meng; Zhenhua Li; Liangliang Yang; Xingguang Qian; Shanshan Wang; Yikun Wang; Hongxing Qi

doi:10.1117/12.2664922

31 January 2023 Research on homodyne interferometric angle measurement based on ellipse fitting

Cuiting Yang, Zhao Cui, Xue Wang, Fanchao Meng, Zhenhua Li, Liangliang Yang, Xingguang Qian, Shanshan Wang, Yikun Wang, Hongxing Qi

Author Affiliations +

Proceedings Volume 12505, Earth and Space: From Infrared to Terahertz (ESIT 2022); 125051T (2023) https://doi.org/10.1117/12.2664922
Event: Earth and Space: From Infrared to Terahertz (ESIT 2022), 2022, Nantong, China

Abstract

In this paper, the influence of the noise and acquisition device resolution of the system is researched on Homodyne Interferometric Angle Measurement Based on Ellipse Fitting. The research method combining data simulation and experimental verification is adopted. The influence of noise and acquisition resolution on the angular resolution is obtained by comparing the experimental and simulation results. The experimental verification results are consistent with the data simulation results. The system angle measurement resolution reaches 10-5 rad, and the system noise error is between 3%- 8%.

Citation Download Citation

Cuiting Yang, Zhao Cui, Xue Wang, Fanchao Meng, Zhenhua Li, Liangliang Yang, Xingguang Qian, Shanshan Wang, Yikun Wang, and Hongxing Qi "Research on homodyne interferometric angle measurement based on ellipse fitting", Proc. SPIE 12505, Earth and Space: From Infrared to Terahertz (ESIT 2022), 125051T (31 January 2023); https://doi.org/10.1117/12.2664922

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