一种阿贝-波特实验再现的方法  

A method to Reconstruct the Abbe-Porter Experiment

作　　者：罗剑峰[1] 王晓峰[1] 张海良[1] 尹红伟[1] 兰勇[1] 

机构地区：[1]国防科学技术大学,湖南长沙410073

出　　处：《大学物理实验》2014年第2期18-23,共6页Physical Experiment of College

摘　　要：用直径为0.24mm的不锈钢金属丝细丝网格制作细丝网格教学道具,给出了具体制作方法。利用当前先进的微钻技术在0.2mm厚的薄铜片上精确加工出直径为0.1、0.2、0.3和0.5mm的四个小孔制作出低通滤波器,比较了不同大小孔径小孔的低通滤波效果。利用大头针的针尖制作出高通滤波器,并购买狭缝滤波器,从而将阿贝-波特实验成功再现。The filament gridding teaching aid is made from metal filament gridding with stainless steel filament of a diameter of 0. 24mm, and the detailed making process is presented. Using current ad- vanced tiny drill technology, the low- pass filter is made by drilling 4 tiny holes of diameters of 0.1mm, 0. 2mm,0.3mm and 0. 5mm respectively,on a piece of thin copper flake with thickness of 0. 2mm,and the filtering effects of tiny holes of different diameters are compared. The high pass filter is made of the needlepoint of pin, and the slot filters are bought,and then the Abbe-Porter experiment is success- fully reconstructed.

关 键 词：阿贝-波特实验 空间滤波 空间频率 光学信息处理 

分 类 号：O438[机械工程—光学工程]