Kun Li, Hongchang Ding, Guohua Cao, Han Hou. Error detection system of photoelectric encoder based on optical continuous closed-loop[J]. Infrared and Laser Engineering, 2022, 51(7): 20210715
- Infrared and Laser Engineering
- Vol. 51, Issue 7, 20210715 (2022)
Fig. 1. System architecture
Fig. 2. Detection principle of optical continuous closed-loop. (a) Self-collimation initialization; (b) System home position; (c) Corner generation and detection; (d) Reciprocal rotation; (e) Full range detection; (f) Self-collimation restoration
Fig. 3. Topological structure of system
Fig. 4. Schematic diagram of biaxial system
Fig. 5. Measuring platform of rotation accuracy. (a) Radial direction; (b) Axial direction
Fig. 6. Curve of rotation accuracy. (a) Radial direction; (b) Axial direction
Fig. 7. Experimental platform of accuracy calibration
Fig. 8. Curve of accuracy calibration
Fig. 9. Experimental platform of accuracy comparison
Fig. 10. Comparison curves of accuracy
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Table 1. Extreme error of turntable simulation
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