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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

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.

Acknowledgement

Supported by : 경남대학교

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