Na ZHAO, Kai-yue WU, Jun-yu CHEN, Peng-ying JIA, Xue-chen LI. Study on Spectral Characteristics of Large Diameter Plasma Jet[J]. Spectroscopy and Spectral Analysis, 2021, 41(8): 2644
- Spectroscopy and Spectral Analysis
- Vol. 41, Issue 8, 2644 (2021)
Fig. 1. Schematic diagram of the experimental setup
![Images of the downstream plasma plume at different parameters [(a), (b), (c)] (Tube1 and the plate electrode are marked by dashed lines, exposure time of the camera is 10 s) and Distribution of discharge luminance along the X-axis (d) and Y-axis (e)](/richHtml/gpxygpfx/2021/41/8/2644/img_2.png)
Fig. 2. Images of the downstream plasma plume at different parameters [(a), (b), (c)] (Tube1 and the plate electrode are marked by dashed lines, exposure time of the camera is 10 s) and Distribution of discharge luminance along the X -axis (d) and Y -axis (e)
Fig. 3. Waveforms of applied voltage, light signal from upstream and downstream under (a) V p= 4.2 kV and (b) V p=7.6 kV
Fig. 4. Optical spectra emitted from the upstream (a) and the downstream (b) plumes with V p of 7.6 kV
Fig. 5. The electron density of upstream and downstream plumes varies with V p and Q
Fig. 6. (a) Spatial distribution of oxygen atom concentration along the argon flow; (b) oxygen atom concentration as a function of experimental parameters
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