计量学报2018，Vol.39Issue(3)：359-362,4.DOI:10.3969/j.issn.1000-1158.2018.03.14
基于Monte-Carlo法的圆锥形黑体腔有效发射率的研究
Research on the Effective Emissivity of Conical Blackbody Cavity Based on Monte-Carlo Method
摘要
Abstract
Effective emissivity of the conical blackbody cavity is calculated by Monte-Carlo method,the method is compared with the finite element method.The influence of some factor,such as the geometrical parameters,the emissivity of the material and the distance from the cavity,on the effective emissivity of the blackbody cavity is analyzed.It indicates that the results obtained by the two methods are essentially same,that is,the ratio of cavity length to cavity radius is 6,the opening radius to cavity radius is 0.5,the cone angle is greater than or equal to 90°,the material emissivity is greater than equal to 0.5,the distance from the detector to the cavity is 15 times as large as the cavity radius.At the same time,when all the conditions above are satisfied,the effective emissivity of the conical blackbody cavity is large.关键词
计量学/圆锥形黑体腔/有效发射率/Monte-Carlo法/有限元分析法Key words
metrology/conical blackbody cavity/effective emissivity/Monte-Carlo method/finite element method分类
通用工业技术引用本文复制引用
沈久利,邢婷婷,吴飞..基于Monte-Carlo法的圆锥形黑体腔有效发射率的研究[J].计量学报,2018,39(3):359-362,4.基金项目
国家自然科学基金(51675469) （51675469）
