By researching relation between cutting edge radius and force to cut synthetic fiber it develops a technique for measuring the sharpness of tools.
通过研究刀具刃口半径与刀具切断纤维的力之间的关系，提出了一种检测加工刀具锋利性能的方法。
2
By the theory of ray optics, the bend losses of fiber as function of fiber parameters such as core index, cladding index, core radius and bend radius are set up.
利用光线理论研究光纤弯曲损耗与弯曲半径、纤芯折射中以及包层折射率的关系。
3
During the experiment, as the coil radius of multimode fiber changes, output characteristic of the laser has been measured. Meanwhile, the mode loss of different modes is calculated theoretically.