OTDR测试误差及规避方法探讨  

Discussion on OTDR Test Error and Avoidance Nethod

作　　者：黄广山 HUANG Guangshan(Shanxi Post and Telecommunications Construction Engineering Co.,Ltd.,Taiyuan 030012,China)

机构地区：[1]山西省邮电建设工程有限公司,山西太原030012

出　　处：《数字通信世界》2021年第2期138-140,共3页Digital Communication World

摘　　要：目前,光缆作为城市轨道交通系统之中的关键传输介质,其本身的安全性会直接影响轨道交通的运营安全,这也就突出了光缆测试的重要性。而在光缆工程施工及线路维护工作开展过程中,OTDR(光时域反射仪)作为必不可缺的一个测试仪器,能将故障点位置迅速发现并确定,同时可对障碍性质及类别准确判定,从而提供可靠的数据,从而在分析光纤特性参数之中加以使用。基于此,在分析OTDR工作原理、测试方式及主要参数的基础上,剖析了测试中可能出现的误差,并提出了几点规避方法,以供参考。At present,as the key transmission medium in the urban rail transit system,the safety of optical cable directly affects the operational safety of rail transit,which highlights the importance of optical cable testing.In the process of optical cable construction and line maintenance work,OTDR(Optical Time Domain Reflectometer)is an indispensable test instrument,which can quickly find and determine the location of the fault point,and can accurately determine the nature and category of the obstacle.So as to provide reliable data,which can be used in the analysis of optical fiber characteristic parameters.Based on this,this article analyzes the errors that may occur in the test based on the analysis of the OTDR's working principle,test methods and main parameters,and proposes several avoidance methods for reference.

关 键 词：OTDR 测试误差 规避方法 

分 类 号：TN06[电子电信—物理电子学] TN818