摘要
本文对自动变光焊接滤光镜的遮光号测量方法进行了研究,指出测量中要将分光光度计光源的偏振性与自动变光焊接滤光镜的偏振性结合考虑,并采用合理的方法、步骤及相应的数据处理程序,得到正确的测量结果,同时分析了分光光度计在自动变光焊接滤光镜多项指标测量中的局限性和重要作用。
This paper describes a method of measurement of shade number for auto-darkening welding filters by using a spectrophotometer. The auto-darkening welding filter is a type of polarization filters. When using a spectrophotometer to measure the shade number ofan auto-darkening welding filter, the measurement results will be affected by polarization ofthe spectrophotometer＇s light source. To obtain the correct shade number, the measurement data must be processed to eliminate the effect ofthe source polarization. A processing method has been developed and the practical tests were conducted accordingly. The results of the shade numbers are correct and reliable. Additionally, based on the analysis, the limitation of spectrophotometer for measuring polarization-types of filters is also indicated.
出处
《中国个体防护装备》
2008年第4期8-11,共4页
China Personal Protective Equipment
基金
"国家科技支撑计划资助"(2006BAK04A09-05-03-06)课题名称:推荐性国家标准<自动变光个人用焊接护具>
关键词
分光光度计
自动变光焊接滤光镜
遮光号
spectrophotometer, auto-darkening welding filter, shade number
