Modeling, test and correction of static pointing error for remotion platform

Hui Li; Hongjie Fan; Qianrong Chen; Qianjin Zou

doi:10.3788/IRLA20210161

Journals >Infrared and Laser Engineering >Volume 50 >Issue 12 >Page 20210161 > Article

Infrared and Laser Engineering
Vol. 50, Issue 12, 20210161 (2021)

Modeling, test and correction of static pointing error for remotion platform

Hui Li, Hongjie Fan, Qianrong Chen, and Qianjin Zou

Author Affiliations

State Key Laboratory of Complex Electromagnetic Environment Effects on Electronics and Information System, Luoyang 471003, China

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DOI: 10.3788/IRLA20210161 Cite this Article

Hui Li, Hongjie Fan, Qianrong Chen, Qianjin Zou. Modeling, test and correction of static pointing error for remotion platform[J]. Infrared and Laser Engineering, 2021, 50(12): 20210161 Copy Citation Text

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Fig. 1. Actual picture of remotion platform

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Fig. 2. Topology structure of remotion platform

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Fig. 3. Horizontal axis offset error along with pitching rotation angle before error correction

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Fig. 4. Horizontal axis offset error along with pitching rotation angle after error correction

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Fig. 5. Vertical axis offset error along with azimuth rotation angle before error correction

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Fig. 6. Vertical axis offset error along with azimuth rotation angle after error correction

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Sort of error	Error item	Error signification
Position error	${e_{\delta z}}$	Horizontal module error(along z axis)
	${e_{\delta y}}$	Vertical module error（along y axis）
	${\Delta _{2x}}$	Vertical module perpendicularity error (around x axis)
	${\Delta _{2z}}$	Vertical module perpendicularity error (around z axis)
	${e_A}$	Azimuth module coder setting and measurement error
	${\Delta _{4x}}$	Pitching module perpendicularity error (around x axis)
	${\Delta _{4y}}$	Pitching module perpendicularity error (around y axis)
	${e_E}$	Pitching module coder setting and measurement error
	${\Delta _{5y}}$	Load collimator setting error
	${\Delta _{5z}}$	Load collimator setting error
Motion error	${e_{4x}}$	Pitching module shafting gyration
	${e_{4y}}$	Pitching module shafting gyration
	${e_{3x}}$	Azimuth module shafting gyration
	${e_{3z}}$	Azimuth module shafting gyration

Table 1. Meanings of each error item

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Pitching angle/(°)	Autocollimation reading/(″)	Azimuth angle/(°)	Gradienter reading/(″)
−3.0	85.6	−3.0	0
−2.5	70.6	−2.5	−1.5
−2.0	56.4	−2.0	−3.0
−1.5	42.4	−1.5	−4.5
−1.0	28.5	−1.0	−6.0
−0.5	14.7	−0.5	−7.5
0	0.2	0	−9.0
0.5	−14.2	0.5	−10.5
1.0	−29.1	1.0	−12.0
1.5	−44.5	1.5	−13.5
2.0	−59.4	2.0	−15.0
2.5	−75.2	2.5	−16.5
3.0	−90.5	3.0	−18.0

Table 2. Actual test data

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Pitching angle/(°)	Autocollimation reading/(″)	Azimuth angle/(°)	Gradienter reading/(″)
0	0.1	0	−753
−1.0	1.7	−1.0	−755
−2.0	1.9	−2.0	−755
−3.0	1.8	−3.0	−757
−2.0	1.6	−2.0	−755
−1.0	1.2	−1.0	−755
0	0.2	0	−753
1.0	0.2	1.0	−754
2.0	1.1	2.0	−753
3.0	3.7	3.0	−751
2.0	2.2	2.0	−754
1.0	1.5	1.0	−755
0.0	1.6	0.0	−754

Table 3. Actual test data after error correction

Hui Li, Hongjie Fan, Qianrong Chen, Qianjin Zou. Modeling, test and correction of static pointing error for remotion platform[J]. Infrared and Laser Engineering, 2021, 50(12): 20210161

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