Wenyuan Zhao, Jianyong Liu, Songqiu Yang. Surface Cleanliness Characterization of Titanium Alloy Sheet Based on Beckmann-Kirchhorff Simplified Model[J]. Laser & Optoelectronics Progress, 2022, 59(11): 1114006
- Laser & Optoelectronics Progress
- Vol. 59, Issue 11, 1114006 (2022)
Fig. 1. g value versus incident angle when σ=0.2 μm and λ=0.6 μm
Fig. 2. Schematic of experimental device with established device in laboratory shown in bottom-right corner
Fig. 3. Photograph of TA15 sample
Fig. 4. Spectra of sample surface in different cleaning areas. (a) Spectrum of incident light and reflection spectrum of each zone; (b) I0/Is of each zone versus 1/λ2
Fig. 5. Reflective absorption spectrum of each zone
Fig. 6. Imaging maps for three different characterization values of TA15 sample obtained by automatic measurement. (a) σg value; (b) R2 value; (c) ratio of absorption intensity at 420 nm to that at 790 nm
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Table 1. Cleanliness and typical R2 and σg of each zone of TA15 sample surface for radius of light spot of 1000 μm
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