%0 Journal Article
%T Approximate entropy analysis of current in short-circuiting arc welding<br>短路过渡电弧焊电流信号的近似熵分析
%A Cao Biao
%A Zeng Min
%A Wang Zhen-Min
%A Huang Shi-Sheng
%A <br>曹 彪
%A 吕小青
%A 曾 敏
%A 王振民
%A 黄石生
%J 物理学报
%D 2006
%I 
%X Based on the approximate entropy theory and related algorithm, approximate entropy analysis of current in short-circuiting arc welding in CO2 shielding gas are performed from the point of view of nonlinear time sequences. Calculation and comparison of approximate entropy of current under different wire-feeding speeds, setting voltages and different gas flow rates show that approximate entropy of current can be taken as a creterion of stability of short-circuiting transfer. The results show that greater approximate entropy and less fluctuation indicate a more stable welding process.
%K nonlinear
%K approximate entropy
%K short-circuiting transfer
%K stability<br>非线性
%K 近似熵
%K 短路过渡
%K 稳定性
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=45BC32402A45F742&yid=37904DC365DD7266&vid=E514EE58E0E50ECF&iid=E158A972A605785F&sid=EB4751E019AF0441&eid=3183893ED5218CD5&journal_id=1000-3290&journal_name=物理学报&referenced_num=9&reference_num=7