ENG  Vol.3 No.2 , February 2011
Time-Frequency Entropy Analysis of Arc Signal in Non-Stationary Submerged Arc Welding
Abstract: The use of time-frequency entropy to quantitatively assess the stability of submerged arc welding process considering the distribution features of arc energy is reported in this paper. Time-frequency entropy is employed to calculate and analyze the stationary current signals, non-stationary current and voltage signals in the submerged arc welding process. It is obtained that time-frequency entropy of arc signal can be used as arc stability judgment criteria of submerged arc welding. Experimental results are provided to confirm the effectiveness of this approach.
Cite this paper: nullK. He, S. Xiao, J. Wu and G. Wang, "Time-Frequency Entropy Analysis of Arc Signal in Non-Stationary Submerged Arc Welding," Engineering, Vol. 3 No. 2, 2011, pp. 105-109. doi: 10.4236/eng.2011.32013.

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