Ming LI, Qiang GAO, Shuang CHEN, Bo LI. Velocity Measurement of Gas Flow Field Based on Femtosecond Laser-induced Chemiluminescence[J]. Acta Photonica Sinica, 2022, 51(3): 0314001
- Acta Photonica Sinica
- Vol. 51, Issue 3, 0314001 (2022)
Fig. 1. Experimental setup
Fig. 2. Fluorescence spectra of 500 ppm CH4/N2 flow field
Fig. 3. Signal intensity attenuation curve at different CH4/N2 concentrations
Fig. 4. Location diagram of marker molecule
Fig. 5. Images with different laser energies and delay times
Fig. 6. Velocity measurement results of different laser energy and delay time
Fig. 7. Signal intensity vs. delay times with CH4 concentration of 2 000 ppm
Fig. 8. Signal intensity vs. delay times with CH4 concentration of 500 ppm
Fig. 9. Signal-to-noise ratio vs. delay time at different CH4 concentrations
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