The quantitative error analysis using this method for a multi-port reflectometer is given also.
另外，本文利用该方法完成了对多端口反射计的误差分析，得到定量分析结果。
Optical Time Domain Reflectometer is a measuring instrument that is essential for optical fiber communication.
光时域反射计非光纤通信必出无否长的的测量仪器。
An improved multi port reflectometer calibration method using five unit vectors with arbitrary phase is described.
本文对多端口反射计的任意相位单位矢量五点校准法作了改进。
Electromagnetic pulses are applied to the sensor and the reflections are recorded with a time domain reflectometer.
在传感器上施加电磁脉冲，通过时间域反射计记录反射数据。
A rectangular waveguide type Six-port reflectometer worked in 8-12 GHz and coutrolled with a microcomputeris presented.
本文介绍一种用矩形波导型六端口反射计快速测量材料介质特性参数的测试系统。
This paper advance a six-pore reflectometer of automatic slot line, only one standard load is on calibrating network parameter.
本文提出了一个用自动测量线的六端口技术，使校准网络参数的标准负载仅用一个。
Surface treatments. Anodized aluminium and aluminium alloys. Measurement of total reflectivity using a photoelectric reflectometer.
表面处理。铝和阳极氧化的铝合金。总反射率的测定。光电反射计法。
The characteristics of microwave reflectivity are studied theoretically and experimentally. Microwave reflectometer is constructed.
本工作对于地物微波反射率特性进行了原理和实验的研究。
So the nitrate test-strip-reflectometer method could rapidly monitor the nitrate level of vegetables and soils in the field and market scene.
反射仪-硝酸根试纸法快捷简便，是蔬菜氮素营养诊断和蔬菜硝酸盐含量监测的理想的现场速测技术。
It is satisfaction of using measure system of simulation six-port reflectometer to measure the biology tissues, its results has actual meaning.
结果：生物组织介电常数的测量，利用模拟六端口反射计测试系统是可以满足要求的，结果具有实际意义。
Testing protein, moisture and ash contents etc in wheat flour with a near-infrared reflectometer has become a standard method known world widely.
近红外检测小麦面粉中的蛋白质、水分和灰分等成分已成为国际公认的标准检测方法。
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。
On the basis of the symmetry of response equation of a multi port reflectometer, the two complex constants of system are determined by using the same procedure.
根据多端口反射计响应方程的对称性，本文提出用同一求解过程确定两个系统复常数。
For the five-port waveguide junction properly to be used in a six-port reflectometer, needing the reflection coefficient looking into anyone port is less than 0.
为了使五端口波导网络能较好地工作于六端口反射计中，要求各端口反射系数的绝对值小于0。
In comparison with metal target LPP source, due to usage of gas-jet target LPP source, the reflectometer is debris-free and can continuously operate for a long time.
与金属靶等离子体光源相比，由于使用了气体靶等离子体光源，该反射率计具有低碎屑、可长期连续运行等优点。
For the five-port waveguide junction properly works in a six-port reflectometer, the absolute value of the reflection coefficient of every port must be less than 0.1.
为了使五端口波导网络能较好地工作于六端口反射计中，要求各端口反射系数的绝对值小于0.1。
The winding technology of fiber coil used in fiber optic gyroscope was demonstrated. The principle and application of Brillouin Optical Time Domain Reflectometer (BOTDR) were introduced.
阐述了光纤陀螺中光纤环的的作用和绕制技术，介绍了布里渊光时域反射计（BOTDR）的工作原理和性能。
A distributed optic fiber type strain sensing system based on optical time domain reflectometer and used for monitoring large scale structural strain and deformation state is studied in the paper.
研究了一种用于大型工程结构应变、变形状态监测的基于光时域反射技术的分布式光纤应变传感系统。
The principle of Brillouin optical time domain reflectometer (BOTDR) is introduced and its application to the strain monitoring of the strain distribution of the reinforced concrete beam is studied.
介绍了布里渊光时域反射计(BOTDR)的分布式光纤应变测量原理，并应用BOTDR技术对钢筋混凝土T型梁加载后的应变分布进行了测量。
The principle of Brillouin optical time domain reflectometer (BOTDR) is introduced and its application to the strain monitoring of the strain distribution of the reinforced concrete beam is studied.
介绍了布里渊光时域反射计(BOTDR)的分布式光纤应变测量原理，并应用BOTDR技术对钢筋混凝土T型梁加载后的应变分布进行了测量。
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