衍射法测量细丝直径

利用两次衍射装置，软件编程数字滤波技术代替硬件电路及简单的暗纹位置识别和平均技术，较好解决了衍射法测量细丝直径实用中的有关问题，对118*#μm的漆包线实测结果达到了1*#μm的重复精度。
  Measurement of Filament by Diffraction Method

Sun Dingyuan Zhou Guixian Liu Dan

(Department of Physics,Liaoning University,Shenyang 110036)

Abstract：Using twice diffraction equipment,digital filters ,the simple algorithms with which dark streak position is distinguished and fringes separation averages principle,the problems occured in a filament diameter measurement by diffraction method can be solved.The experimental results of measuring enamelled wire whose diamater is 118*#μm present 1*#μm repeatablity.

Key Words：Laser；Diffraction Filament；Measurement