中国电机工程学报2017，Vol.37Issue(23)：7047-7057,11.DOI:10.13334/j.0258-8013.pcsee.161983
适用于流注茎温度场测量的定量纹影系统及其图片处理方法
Quantitative Schlieren System and Image Processing Method Applicable to the Measurement of Stem Temperature Field
摘要
Abstract
The thermal characteristics of stem is a key problem to understand formation and development of the leader discharge.Thus,it is meaningful to develop a system which can measure the temperature of stem.Designing the optical path and selecting the light source and lens rationally,a quantitative schlieren system was established in this paper.It has the spatial resolution of 70μm and time resolution of 5μs,and high sensitivity,which is applicable the measurement of the stem temperature field.Based on the characteristics of the schlieren photographs and stem,an image processing method and procedure was developed.Then experiments of long air discharge were carried out.The temperature of stem was calculated using the quantitative schlieren system.The results show that the temperature of the stem increases from 300K to 720K during 25μs,and the rate of temperature rising is larger at first than later.关键词
定量纹影/纹影图片处理/Abel逆变换/流注茎/温度分布Key words
quantitative schlieren system/schlieren photographs processing/Abel inversion/stem/temperature filed分类
信息技术与安全科学引用本文复制引用
赵贤根,岳一石,杨永超,肖佩,何俊佳,贺恒鑫,陈维江..适用于流注茎温度场测量的定量纹影系统及其图片处理方法[J].中国电机工程学报,2017,37(23):7047-7057,11.基金项目
国家重点基础研究发展计划项目(973项目)(2011CB209403).The National Basic Research Program (973 Program) (2011CB209403). （973项目）
