摘要
本文利用动态图象高速微机采集系统，对真空电弧燃弧过程中出现的金属液滴迁移轨迹进行了拍摄跟踪，经数学分析得出了海滴直径，并推算出其以严高的加速度从阳极到阳极作加速运动。指出产生这一加速运动的原因是触头间存在着巨大的压力梯度，经理论推导求出了这一梯度值。
In this paper,the migration locus picture of metallic droplet in vacuum interrupters is captured with the dynamic image high - speed sampling computer system. Based on photo analysis the droplet diameter is l. 86mm and the average acceleration is 85 times of standard acceleration of gravity,the reasons for this acceleraing motion is the great gradient of gas pressure between the electrodes, its value is as high as 7. 4 ×106 Pa/m.
出处
《中国电机工程学报》
EI
CSCD
北大核心
1997年第2期118-121,共4页
Proceedings of the CSEE
基金
国家自然科学基金
关键词
真空电弧
动态图象
运动
特性
vacuum arcing metal droplet migration dynamic image motion characteristic dissipation process
