Fig. 1. Structure diagram of the proposed on-the-fly mode control system

Fig. 2. Flowchart of the motion controller program

Fig. 3. Structure diagram of the synchronous trigger module system

Fig. 4. Structure diagram of the software control module

Fig. 5. Schematic of the on-site deployment

Fig. 6. Schematic of the light path in a grating monochromator

Fig. 7. Relationship between the grating and mirror position in XMCD

Fig. 8. Flowchart of the on-the-fly mode program

Fig. 9. Results of consistency testing in XAS experiments

Fig. 10. Results of stability testing in XAS experiments

Fig. 11. Results of different scanning speeds testing in XAS experiments