The method also has the desirable feature of time saving and operator bias removing . the technique can be applied for the measurement of the outside diameter , the core diameter , or the core concentricity of hollow - core optical fibers , so as to eval - uate fibers 这个技术可以测量出空芯光纤的纤芯直径、包层直径、纤芯的不圆度、包层的不圆度以及纤芯/包层同心度误差,从而用来评估空芯光纤的质量。
The relationship between periodical fluctuation of the core diameter and srl was analyzed . the method predicting srl using core diameter data fft transform was found . the formula by shadow ' s length and shadow ' s position of two vertical directions to calculate core diameter was found 本文又推导了利用无透镜测径系统相互垂直两方向的影长和影位置信息来计算线芯直径的公式;并通过计算机仿真程序分析了该公式的误差,得到将公式误差降低到10 ~ ( - 2 )微米以下的修正方法。
Ca2 + ions from the reactants attended to be absorbed in the diffusion dilayer by the so3 - anion . calcium ions could compress the diffusion dilayer and reduce the aggregation number of aot molecular because of the higher charge density . the absorbance of ca2 + ions change of phase diagram of system and water core diameter 反应试剂溶液中的ca ~ ( 2 + )离子倾向于被吸附在aot极性头基的- so _ 3 ~ -阴离子附近,压缩了极性头基水解产生的扩散双电层,使得aot分子的聚集体变小,也使得处于束缚状态的水分子数量减少。