There may be unreal peaks on backscattering signal curve in the measurement of optical fiber links by OTDR.
用OTDR测试光纤线路时，其背向瑞利散射信号曲线上常出现幻峰。
The result shows that real splice loss is determined by the average value measured by OTDR in 2 directions .
结果表明，真正的接头损耗应由OTDR双向测试的平均值决定。
The position of measurement point was determined by Raman scattering optical time domain reflection (OTDR) technique.
系统采用拉曼光时域反射技术，对所测点进行定位。
The principle of OTDR (Optical Time Domain Reflectometry) for faults location and application of OTDR method is discussed.
探讨了OTDR（光时域反射计）故障定位的原理，说明了OTDR的使用方法。
Abstract: The principle of distributed temperature sensor system based on Raman Scattering and optical time domain reflectometer (OTDR) is explained.
摘要：阐述了基于拉曼背向散射和光时域反射(OTDR)技术的分布式光纤测温系统的原理。
By using wavelength division multiplexing, optical switch and optical time domain reflectometer (OTDR) technology, networks can be supervised automatically.
该方案将光波分复用技术、光开关和OTDR技术相结合，实现了对光纤通信网的自动在线监测。
At the same time, it discusses the elements influencing the test accuracy of optical time domain reflectometer (OTDR) and measures for eliminating test error.
同时，还讨论了影响光时域反射仪(OTDR)测试精度的要素和消除测试误差通常采用的对策。
In this article, the influences of the mode field diameter, the cutoff wavelength and the relative refractive index difference on the OTDR curve are also verified.
文中还验证了单模光纤的模场直径、截止波长、相对折射率差对OTDR曲线的影响。
This paper presents the principles of the Raman back-scattering effect based temperature sensing and the OTDR (Optical Time-Domain Reflectometry) based positioning.
本文介绍了光纤拉曼散射测温基本原理和基于光时域反射(OTDR)定位原理。
Based on analysis of domestic and foreign study actualities on fiber-optic strain sensor-based system, a new winding fiber-optic strain sensing technique based on OTDR is presented.
本文在分析研究了现有的光纤应变传感技术的基础上，提出了基于光时域反射技术的缠绕式光纤应变传感系统。
Due to the Fresnel reflection in optical fiber links there will be dead zone existing in the measurement using OTDR. This paper gives a quantitative analysis of this so called dead zone.
光纤线路中的菲涅尔反射使OTDR测试有盲区，文章对该盲区进行了定量分析。
Due to the Fresnel reflection in optical fiber links there will be dead zone existing in the measurement using OTDR. This paper gives a quantitative analysis of this so called dead zone.
光纤线路中的菲涅尔反射使OTDR测试有盲区，文章对该盲区进行了定量分析。
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