初期冰

霜层生长初期冰晶体分布状况实验研究

Experiment Investigation on Distribution of Ice Crystal During Initial Period of Frost Growth

霜层生长初期冰晶体结构实验研究及分形分析

Experimental Study and Fractal Analysis of Ice Crystal Structure at Initial Period of Frost Formation

结果表明，数字图像处理技术是研究霜层生长初期冰晶体结构的一种可行手段。

The result indicates that digital image processing method supplies a feasible means to study the ice crystal structure at initial time of frost growth .

通过自行研制的图像放大及采集系统，对霜层生长初期冰晶体的形态进行了显微观测，得到了不同生长条件下冰晶体的图像。

Using a system of image magnification and acquisition , we observed and collected pictures of ice crystal in various shapes under different growth conditions .

此外霜层生长初期冰晶体的结构发生了变化，晶体呈倒立状，在某个时段内持续这种状态。

Furthermore , the structure of ice crystal is changed at initial stages of frost formation , and tile ice crystals stand upside down at this period .

通过对图像的分析，发现霜层的生长初期冰晶体的分布与充分生长的霜层有所不同，此时霜层靠近冷表面固含率最大；

On the basis of analyzing this image , it is found that the distribution of ice crystal at the initial period of frost growth is different from that at fully growth period .

输电线路覆冰经常发生在冬季和春季初期，覆冰严重的时候会导致线路断股、断线，甚至造成杆塔损毁等多种电力事故。

In winter and early spring , it is common to catch transmission line icing accident . The break of transmission line and even the damage of electric power tower are caused when critical icing happen .