Fig. 1. Overall structure of 2D laser tracking turntable

Fig. 2. Pitching shafting configuration

Fig. 3. Azimuth shafting

Fig. 4. Position relationship between the two axes

Fig. 5. Rotation track of pitch axis

Fig. 6. Force analysis of pitching shafting section

Fig. 7. Analysis of axial contact characteristics

Fig. 8. Force analysis of bearing housing

Fig. 9. Force analysis of C2 section

Fig. 10. Section deformation schematic

Fig. 11. Dynamic deformation error analysis curve

Fig. 12. Rigid-flexible coupling model

Fig. 13. Error simulation curve

Fig. 14. Dynamic coupling error measurement system

Fig. 15. Real object of the experimental system

Fig. 16. Experimental data of dynamic coupling error

Fig. 17. Random error of measurement data

Fig. 18. Error after compensation