瓷砖划痕的单像素检测实验  

Ceramic tile scratch detection experiment using a single pixel detector

作　　者：欧阳浩艺 陈婉钧 杨初平[1] OU-YANG Hao-yi;CHEN Wan-jun;YANG Chu-ping(Department of Physics,South China Agricultural University,Guangzhou 510642,China)

机构地区：[1]华南农业大学应用物理系,广东广州510642

出　　处：《物理实验》2021年第3期37-41,共5页Physics Experimentation

基　　金：华南农业大学质量工程资助项目(No.zlgc16032);岭南现代农业科学与技术广东省实验室资助项目。

摘　　要：为了检测瓷砖表面划痕,设计了使用单像素探测器的实验.实验采用特别的照度设计实现瓷砖表面面向探测器的辐射通量分布均匀化,实现均匀的检测灵敏度,并把划痕引起反射率分布异常转化为反射率累积异常(或者总辐射通量异常).研究了4种不同类型合格瓷砖各自的总辐射通量和划痕引起的总辐射通量异常,结果显示划痕导致总辐射通量的明显改变,证明该方法具有可行性.To detect the scratch on the ceramic tile surface,a detection experiment using a single pixel detector was designed.A special illumination design was used to realize the uniform radiation flux distribution on the ceramic tile surface and the uniform detection sensitivity,and the abnormal reflectivity distribution caused by the scratch was transformed into the cumulative reflectivity anomaly(or the total radiation flux anomaly).In the experiment,the total radiation flux of four different types of qualified ceramic tile and the abnormal total radiation flux caused by scratch were studied.The results showed that the total radiation flux changed significantly due to scratch.Therefore,the feasibility of this method was proved.

关 键 词：信息光学 反射率异常 辐射通量 单像素检测 

分 类 号：O432.2[机械工程—光学工程] TN247[理学—光学]