Weihao Cheng, Yunyun Chen, Chuansen Duan, Tao Liang, Yusong Li. Method of Measuring Grating Constant Based on Moiré Measurement Technology[J]. Laser & Optoelectronics Progress, 2019, 56(6): 062001
- Laser & Optoelectronics Progress
- Vol. 56, Issue 6, 062001 (2019)
Fig. 1. Experimental setup
Fig. 2. Moiré fringes under different θ when d'=0.05 mm
Fig. 3. Moiré fringes under different θ when d'=0.02 mm
Fig. 4. Binary Moiré fringes when d'=0.05 mm
Fig. 5. Binary Moiré fringes when d'=0.02 mm
Fig. 6. Handled Moiré fringe image. (a) Real image; (b) ideal image
Fig. 7. Relative error. (a) d'=0.05 mm; (b) d'=0.02 mm
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Table 1. Stripe spacing (d'=0.05 mm)
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Table 2. Stripe spacing (d'=0.02 mm)
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Table 3. Grating constants d and relative errors (d'=0.05 mm)
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Table 4. Grating constants d and relative errors (d'=0.02 mm)
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