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焊接电弧中含有丰富的光谱信息 ,利用这些信息对焊接电弧这一复杂的物理现象进行测试 (或称诊断 )和控制 ,是提高和发展焊接技术的一种非常有效的方法 ,具有重要的理论和实际意义。文章论述了这方面研究的进展 ,阐明了电弧光谱信息的测控原理 ,介绍了电弧光谱信息在电弧诊断 ,电弧气氛监控 ,弧焊区成像 ,特别是近年来在脉冲MIG焊熔滴过渡控制等方面的应用情况。同时 ,还介绍了这一技术在等离子体现象中的一些重要应用 ,并总结出几点基本看法 ,指出了它的发展方向
Welding arc contains a wealth of spectral information, the use of this information on the welding arc of the complex physical phenomena of testing (or diagnosis) and control, is to improve and develop the welding technology is a very effective method, with important theory and Practical significance. In this paper, the progress of the research in this field is expounded, the principle of measurement and control of arc spectrum information is expounded, the information of arc spectrum is introduced in arc diagnosis, arc atmosphere monitoring, arc zone imaging, especially in recent years in pulse MIG droplet transfer control The application of. At the same time, some important applications of this technology in the plasma phenomenon are introduced, and some basic views are summarized, pointing out its development direction