Fig. 1. Framework of dynamic radius external reference measurement of precision centrifuge

Fig. 2. Schematic of dual-comb external reference ranging

Fig. 3. Impact of Curvature radius error

Fig. 4. Impact of radial installation error

Fig. 5. Impact of horizontal rotation error

Fig. 6. Numerical simulation results of machining and alignment errors

Fig. 7. Impact of rotational alignment error

Fig. 8. Results of static measurement precision

Fig. 9. Measurement results of dynamic radius external reference under different accelerations