Yang Wang, Zhenheng Lin, Tianci Tang, Luolin Song. Thermal Damage Detection of Fluororubber Material Based on Terahertz Wave[J]. Laser & Optoelectronics Progress, 2020, 57(17): 173003
- Laser & Optoelectronics Progress
- Vol. 57, Issue 17, 173003 (2020)
Fig. 1. Terahertz time-domain spectroscopy system device
Fig. 2. Optical path diagram of transmission terahertz time-domain spectroscopy system
Fig. 3. Time-domain waveform of terahertz wave propagation in nitrogen
Fig. 4. Time-domain waveform and fitting curve of each sample in group 4
Fig. 5. Terahertz spectra of experimental sample groups
Fig. 6. Terahertz spectra of experimental sample groups (from -382 ps to -376 ps)
Fig. 7. Fitting results of maximum value of time-domain waveform and heating temperature
Fig. 8. Fitting results of peak-to-peak value of time-domain waveform and heating temperature
Fig. 9. Frequency spectra of nitrogen and each sample group
Fig. 10. Terahertz absorption spectra of sample groups
Fig. 11. Linear fitting results of sample absorption coefficient and heating temperature
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Table 1. Fluororubber material samples to be tested
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Table 2. Average terahertz time-domain waveform parameters
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Table 3. Average absorption coefficient of samples with different heating temperatures
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