Ge Zhu, Zhiwei Pu, Min Fu, Changli Li, Xiaoyu Yu, Shuangya Zhang. Measurement Method for Micro-Controlled Phase-Shifting Precise Linear Displacement of Single-Alternating Light Field[J]. Acta Optica Sinica, 2020, 40(2): 0212001
- Acta Optica Sinica
- Vol. 40, Issue 2, 0212001 (2020)
Fig. 1. Schematics of sensor structural model. (a) Schematic of sensor structure with multi-alternating light field; (b) schematic of sensor structure with single-alternating light field
Fig. 2. Schematic of area change of sinusoidal grid
Fig. 3. Principle of electric traveling wave signal synthesis of single-alternating light field sensor
Fig. 4. Matlab simulation waveform of traveling wave signal containing phase-shifting error
Fig. 5. Intensity distribution of light source. (a) Simulated spot of ideal point light source; (b) simulated spot of LED light source
Fig. 6. Matlab simulation waveform of traveling wave signal with inconsistent light-field distribution
Fig. 7. Device and experimental platform for single-alternating light field sensor
Fig. 8. Measurement error curve with phase-shifting angle of 90°. (a) Phase-shifting angle of 90°; (b) error curve of displacement measurement
Fig. 9. Measurement error curve with phase-shifting angle deviation. (a) Phase-shifting angle of 92°; (b) error curve of displacement measurement
Fig. 10. Experimental error curves of multi-alternating light field and single-alternating light field. (a) Measurement error curve of single-alternating light field; (b) measurement error curve of multi-alternating light field
Fig. 11. Light spots of different sources and distribution curves of light intensity. (a) Light spot of LED and distribution curve of light intensity; (b) laser spot and distribution curve of light intensity
Fig. 12. Measurement error curves of different light sources. (a) Measurement error curve of LED beam with scattering angle of 2°; (b) measurement error curve of laser beam
Fig. 13. Long-period error curve of single-alternating light field sensor
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