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Time-Frequency Entropy Analysis of Arc Signal in Non-Stationary Submerged Arc Welding
2011
Engineering
Preserved Fulltext
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.
doi:10.4236/eng.2010.32013
fatcat:nonjangyd5d2pj2zwqcybimtqq