A Study on the Measurement of Vibrational and Rotational Temperature Using the Atmospheric Ar Plasma Torch

대기압 아르곤 플라즈마 토치의 진동 및 회전온도 측정 연구

  • Received : 2011.09.01
  • Accepted : 2011.09.14
  • Published : 2011.10.01


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.


Supported by : 경남대학교


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