| Title |
A Study on the Measurement of Vibrational and Rotational Temperature Using the Atmospheric Ar Plasma Torch |
| Authors |
최광주(Choi, Kwang-Ju) ; 장문국(Jang, Mun-Gug) ; 한상보(Han, Sang-Bo) ; 박재윤(Park, Jae-Youn) |
| DOI |
https://doi.org/10.5370/KIEE.2011.60.10.1895 |
| Keywords |
Emission ; Nitrogen ; Plasma torch ; Rotational temperature ; Second positive system ; Vibration |
| Abstract |
This work was carried out for the measurement of vibration and rotation temperature using the optical emission spectroscopy of nitrogen second positive system in the small plasma torch. Among emissions N_2 SP systems, the emission of N_2 SP(0-0) was so strong. Emission peaks of SP system increased until the position of 12.5[mm] from the end of plasma torch, after that it decreased. However, vibration temperature decreased from 1540[K] to 1000[K] at the position of 12.5[mm]. In addition, rotational temperature was about 400[K] at the position of 10[mm] and it increased a little as much of 420[K] at 12.5[mm]. Consequently, the plasma torch discussed in this work is possible to apply in the surface treatment process under the low temperature. |