Infrared and Laser Engineering, Volume. 52, Issue 12, 20230288(2023)
Linear constraint approach for calibrating distance of base point in laser tracking interferometer system
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Fig. 6. (a) Air refractive index compensation; (b) The verification experimental system of calibration; (c) API tracker
Table 1. Simulation environment and parameters set
View tableView in ArticleTable 1. Simulation environment and parameters set
Items Parameter Environment Intel i5 7th Gen Distance of base point (DBP) 350 mm Error of interferometer X-N (0, 0.5 μm) Error of LTIS X-N (0, 0.5 μm)
Table 2. DBP calibration result for LTIS
View tableView in ArticleTable 2. DBP calibration result for LTIS
No. DBP/mm Average x0/mm Average l0/mm 1 290.0688 1492.0213 290.0764 2 290.0857 3 290.0748 4 290.0652 5 290.0877
Table 3. Weight average and its standard deviation of DBP
View tableView in ArticleTable 3. Weight average and its standard deviation of DBP
1 2 3 4 5 $ \sigma_{\|} $ 0.0502 0.1128 0.0511 0.0559 0.0473 $ p_{i} $ 397.5 78.666 382.44 319.62 446.27 $ \bar{l}_{0} $ 29.0764 mm $ \sigma_{T_{1}} $ 4.4 μm
Table 4. DBP calibration results for API radian
View tableView in ArticleTable 4. DBP calibration results for API radian
No. DBP/mm Weighted average /mm API value/mm Error /mm 1 154.2002 154.1940 154.1910 0.003 2 154.1892 3 154.1993 4 154.1868 5 154.1968
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Xiangzhang Chao, Xiaofei Diao, Yanhui Kang, Xinrui Fan, Lihua Lei, Liqin Liu. Linear constraint approach for calibrating distance of base point in laser tracking interferometer system[J]. Infrared and Laser Engineering, 2023, 52(12): 20230288
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Received: May. 7, 2023
Accepted: Jul. 3, 2023
Published Online: Feb. 23, 2024
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