BCF-92 POF端面不圆度测量及应用  

BCF-92 POF end face out-of-roundness measurement and application

作　　者：庞云龙 刘佳[2] 王林[1] PANG Yunlong;LIU Jia;WANG Lin(College of electric power,Inner Mongolia University of Technology,Hohhot 010080,China;Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]内蒙古工业大学电力学院,呼和浩特010080 [2]中国科学院高能物理研究所,北京100049

出　　处：《光通信技术》2020年第7期59-62,共4页Optical Communication Technology

基　　金：国家自然科学基金青年科学基金(批准号:11605208)资助。

摘　　要：塑料光纤(POF)在高能物理宇宙线探测中应用广泛,光纤的端面质量在很大程度上决定了探测器的性能,从而影响宇宙线能谱和成分测量的精度。以高海拔宇宙线项目中电磁粒子探测器采用的BCF-92 POF作为研究对象,通过Matlab图像处理的方式对光纤端面图像进行了预处理,应用迭代最小二乘椭圆拟合法确定了纤芯和包层的端面几何参数并计算了端面不圆度。实验结果表明:95.4%的样本光纤为合格光纤,端面不圆度平均在0.75%左右,该方法能满足高海拔宇宙线项目的探测需求。Plastic optical fiber(POF)is widely used in the detection of high-energy physical cosmic rays.The quality of the optical fiber end face determines the performance of the detector largely,thus affecting the accuracy of cosmic ray spectrum and composition measurement.In this paper,the BCF-92 POF used in the electromagnetic particle detector of the high altitude cosmic ray project is taken as the research object.The image of the optical fiber end face is preprocessed by the way of Matlab image processing.The geometric parameters of the end face of the core cladding are determined by the iterative least square ellipse fitting method,and the end face out of roundness is calculated.The experimental results show that 95.4%of the sample optical fiber is qualified,and the average non circularity of the end face is about 0.75%.This method can meet the detection requirements of high altitude cosmic ray project.

关 键 词：BCF-92塑料光纤 图像处理 迭代最小二乘法 椭圆拟合 包层不圆度 

分 类 号：TN929.11[电子电信—通信与信息系统] TN206[电子电信—信息与通信工程]