Fig. 1. Schematic diagram of Ritchey-Common detection principle

Fig. 2. Schematic diagram of closed-loop detection principle

Fig. 3. System wave aberration distribution in pupil coordinate system

Fig. 4. Wave aberration distribution of system obtained by reverse calculation of optical software

Fig. 5. Comparison between the random disturbance recovery plane and the standard plane

Fig. 6. Wave aberration distribution of system obtained by direct simulation

Fig. 7. Wave aberration distribution of system obtained by reverse calculation of optical software

Fig. 8. Test result diagram of Φ2.7 m spherical mirror

Fig. 9. Result diagram of Φ2 m plane mirror error

Fig. 10. Schematic diagram of testing 2 m flat mirror

Fig. 11. Schematic diagrams of Φ2.7 m spherical mirror and Φ2 m plane mirror

Fig. 12. Track and test the change of Zernike coefficient of 2 m flat mirror shape

Fig. 13. System wave aberration distribution in pupil coordinate system

Fig. 14. Restored plane shape

Fig. 15. Wave aberration distribution of system obtained by reverse calculation of optical software

Fig. 16. Result diagram ofΦ2 m plane mirror eccentricity error