The Reconstruction of Welding Arc 3D Electron Density Distribution Based on Stark Broadening
ZHANG Wang1, 2, HUA Xue-ming1, 2*, PAN Cheng-gang1, 2, LI Fang1, 2, WANG Min1, 2
1. Welding Engineering Institute of Materials Science and Engineering, Shanghai Jiaotong University, Shanghai 200240, China 2. Shanghai Key Laboratory of Materials Laser Processing and Modification, Shanghai Jiao Tong University, Shanghai 200240, China
Abstract：The three-dimensional electron density is very important for welding arc quality control. In the present paper, Side-on characteristic line profile was collected by a spectrometer, and the lateral experimental data were approximated by a polynomial fitting. By applying an Abel inversion technique, the authors obtained the radial intensity distribution at each wavelength and thus constructed a profile for the radial positions. The Fourier transform was used to separate the Lorentz linear from the spectrum reconstructed, thus got the accurate Stark width. And we calculated the electronic density three-dimensional distribution of the TIG welding arc plasma.
张 旺1, 2，华学明1, 2*，潘成刚1, 2，李 芳1, 2，王 敏1, 2 . 基于Stark展宽的TIG焊接电弧三维电子密度测量研究[J]. 光谱学与光谱分析, 2012, 32(10): 2601-2604.
ZHANG Wang1, 2, HUA Xue-ming1, 2*, PAN Cheng-gang1, 2, LI Fang1, 2, WANG Min1, 2 . The Reconstruction of Welding Arc 3D Electron Density Distribution Based on Stark Broadening . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2012, 32(10): 2601-2604.
[1] Alvarez R, Rodero A, Quintero M. Spectrochimica Acta Part B: Atomic Spectroscopy, 2002, 57(11): 1665. [2] Dzierga K, Zawadzki W, Pokrzywka B, et al. Physical Review E, 2006, 74(2): 026404. [3] Pellerin S, Musiol K, Pokrzywka B, et al. Journal of Physics D: Applied Physics, 1994, 27: 522. [4] Pellerin S, Musiol K, Pokrzywka B, et al. Journal of Physics B: Atomic, Molecular and Optical Physics, 1996, 29: 3911. [5] Zielińska S, Musio K, Dzierga K, et al. Plasma Sources Science and Technology, 2007, 16: 832. [6] Ribic B, Burgardt P, DebRoy T. Journal of Applied Physics, 2011, 109: 083301. [7] Vervisch P, Cheron B, Lhuissier J. Journal of Physics D: Applied Physics, 1990, 23: 1058. [8] Liu L, Huang R, Song G, et al. Plasma Science, IEEE Transactions on, 2008, 36(4): 1937. [9] Gao H, Ma S, Xu C, et al. The European Physical Journal D-Atomic, Molecular, Optical and Plasma Physics, 2008, 47(2): 191. [10] Christova M, Castanos-Martinez E, Calzada M, et al. Applied Spectroscopy, 2004, 58(9): 1032. [11] Vogman G V, Shumlak U, Golingo R P, et al. APS-DPP Meeting Atlanta, GA Nov. 2-6, 2009. 11. [12] Vogman G, Shumlak U. Review of Scientific Instruments, 2011, 82: 103504. [13] He J, Zhang C. Journal of Optics A: Pure and Applied Optics, 2005, 7: 613. [14] Letchworth K L, Benner D C. Journal of Quantitative Spectroscopy and Radiative Transfer, 2007, 107(1): 173. [15] Griem H R. Plasma Spectroscopy. New York: McGraw-Hill, 1964. 1. [16] Cho Y T, Na S J. Measurement Science and Technology, 2005, 16(3): 878. [17] Pearce W J. Optical Spectrometric Measurements of High Temperature. University Press, Chicago, 1961. [18] Ma S, Gao H, Wu L. Applied Optics, 2008, 47(9): 1350. [19] Chan G C Y, Hieftje G M. Spectrochimica Acta Part B: Atomic Spectroscopy, 2006, 61(1): 31. [20] Nakamura S. Spectrochimica Acta Part B: Atomic Spectroscopy, 1999, 54(13): 1899. [21] Haddad G, Farmer A. Journal of Physics D: Applied Physics, 1984, 17: 1189.
