高电压技术2017，Vol.43Issue(5)：1518-1525,8.DOI:10.13336/j.1003-6520.hve.20170428017
憎水性材料表面液滴面积分析方法
Droplet Area Measurement Method for Hydrophobic State Description
摘要
Abstract
Droplet area is an effective method to characterize the hydrophobicity of the material surface.Consequently,we introduced the development process of droplet area measurement software,which was used for studying hydrophobic state of pollution layer on composite materials.A core algorithm corresponding to the each step of image recognition droplet morphology was explained.In the course of software development,Laplace-Gauss operator (LOG) was used for image processing.Firstly,a Gauss low-pass filter was used to smoothen the image signals.Then,a Laplacian high-pass filter was used to extract the edge of the target object.According to the features of artificial pollution tests,reasonable grayscale threshold was set automatically to separate droplet image form the whole picture.Based on the droplet area software successfully development,artificial pollution tests of composite insulators were carried out.Droplets area was used for representing the hydrophobicty strength of pollution layer.The research shows that the LOG operator,combined with the indigo droplet,can effectively improve the accuracy of drop area method in pollution layer hydrophobic state description.Precise analysis can be applied to the hydrophobicity of composite insulators in the artificial pollution test.关键词
图像识别/拉普拉斯高斯算子/复合绝缘子/液滴面积/污闪/憎水性Key words
image recognition/LOG/composite insulators/droplet area/pollution flashover/hydrophobicity引用本文复制引用
李杰,周志成,高嵩,戴罕奇,赵晨龙,王黎明..憎水性材料表面液滴面积分析方法[J].高电压技术,2017,43(5):1518-1525,8.基金项目
国家电网公司科技指南项目(编号略).Project supported by Science and Technology Project of SGCC. （编号略）
