摘要
Edlen公式是修正空气折射率的基本公式。针对Edlen公式在常压段修正空气折射率的这一局限性,设计并进行了低气压段的空气折射率与温度及气压关系的实验。采用无约束变量最优化理论中的模式搜索法,对适用于常压段的Edlen公式进行了改进,使其也适用于低气压段。修正后公式的精度与常压段Edlen公式的精度基本相同。
Edlen Equation is the basic formula to amend air refractive index. In the light of the correction limit of Edlen equation under normal air pressure, an experiment of air refractive index among temperature and low air pressure is designed and then proceeded. Edlen equation under normal air pressure is updated to the application under lower air pressure, which based on pattern search method of unrestricted variable optimizition theory. The accuracy of the updated Edlen equation is the same as that of the Edlen equation under normal air pressure.
出处
《计量学报》
CSCD
北大核心
2005年第3期221-224,共4页
Acta Metrologica Sinica
作者简介
张琢(1962-),男,黑龙江哈尔滨人,哈尔滨工业大学教授,博士,主要从事大尺寸测量及精密仪器的研制工作。