Tao He, Zhonghua Shen, Fei Chen, Li Chen. Measurement of translucent coating thickness based on pulsed thermography[J]. Infrared and Laser Engineering, 2022, 51(2): 20210890
- Infrared and Laser Engineering
- Vol. 51, Issue 2, 20210890 (2022)
Fig. 1. Schematic diagram of theoretical analysis model
Fig. 2. Analytical surface temperature of samples with different coating thickness vs time in double logarithm scale
Fig. 3. Coating thickness vs peak time of surface temperature in logarithm scale
Fig. 4. Schematic diagram of numerical calculation model
Fig. 5. Coating thickness vs transmittance
Fig. 6. Simulation surface temperature of samples with different coating thickness vs time in double logarithm scale
Fig. 7. Coating thickness vs simulation peak time of surface temperature in logarithm scale
Fig. 8. Schematic diagram of the coating specimen
Fig. 9. Selected frames from the IR image sequence
Fig. 10. Experimental surface temperature of samples with different coating thickness vs time in double logarithm scale
Fig. 11. Thickness vs experimental peak time in double logarithm scale
Fig. 12. Test result of thickness distribution of the specimen
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Table 1. Parameters used in the model
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Table 2. Measurement result of coating thickness
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