time domain reflection

Depending on the pulse time domain reflection characteristic and the technology of equivalent sample,we get a resolution of 3 mm.

利用脉冲信号时域反射的特征,可以实现对传输路径特征的探测,但直接测量的分辨率较低。

The time domain reflectometry of the coaxial cable was analyzed by studying the relation between the cable geometry and the characteristic impedance as well as the relation between the change of characteristic impedance and the voltage of reflected wave.

同时 ,举例说明了同轴电缆的时域反射技术在交通工程中的应

It includes laboratory management; FM EMC photonic sensor; RF EMS test; EM radiation of microwave ovens; measurement of electric properties of material by TDR.

文章介绍了第三届国际电磁兼容学术会议提供的抗扰度测量;程控的电压暂降、短时中断发生器;微波炉电 磁辐射测量以及时域反射技术用于测量材料的介电常数与电导率。

Research on the detection of fiber Bragg grating array using optical time domain reflection technology;

光纤Bragg光栅阵列的光时域反射探测技术研究

The optical time domain reflection technology and Raman scattering theory are introduced.

分析了分布式光纤温度传感技术在火灾探测报警领域的应用特性和系统优化设计方案,介绍了光时域反射技术以及光纤中的Raman散射测温原理。

Resultsshow that timedomain reflectmetry(TDR) can be.

溶质锋面位置的测定是利用边界层确定参数的关键所在,研究结果表明,时域反射仪可以作为溶质锋面的探测手段。

This paper introduced TDR and the method for determination of soil moisture and its application.

介绍了时域反射仪(TDR)及其测定土壤水分的方法及应用,并利用时域反射仪结合土钻法测定土壤容重,与经典的环刀法测定土壤容重进行了比较,结果表明:两种测定结果存在一定的差异,TDR结合土钻法测定土壤容重能连续测定而且稳定性好。

Time domain reflectometry (TDR) is widely used in determining water content for general agricultural soils.

试验通过往土壤中加入电介质溶液 ,以及在不同粘粒含量土壤上用时域反射仪 (TDR)测定土壤含水量 ,研究结果表明 :在较低含水量情况下 (砂土 <0 1 5cm3cm- 3,砂质壤土 <0 。

On factors influencing soil solute transport modeling by using time domain reflectometry(TDR);

用时域反射仪测定土壤溶质运移过程中的影响因素

Time-domain reflectometry( TDR): An impulse is transmitted into the loop.

时域反射器（DR）一个脉冲发射给环路。

Measurement of Soil Bulk Density by Time Domain Reflectometry Combined with Soil Sampling;

时域反射仪结合土钻法测定土壤容重

Present Application Status and Development Trend of the Time Domain Reflectometry

时域反射仪(TDR)的应用现状与发展趋势

Design of signal acquisition system based on time domain reflectometry

基于时域反射计的信号采集系统设计

The Application of the Pulse TDR Gauge to Power Plant

脉冲时域反射物位计在电厂中的应用

Study on the Dynamics of Nitrate Leaching in Soil Using Time Domain Reflectometry;

利用时域反射技术研究硝态氮的迁移规律

The Implementation and Application of Optical Time-Domain Reflectometry with Large Dynamic Range

大动态范围光时域反射计的实现与应用

Network Cable Fault Location Based on the Wide Pulse Time-Domain Reflection

宽脉冲时域反射网络线缆测试方法研究

Phosphogypsum Slag Site Monitor Technique Based on TDR

基于时域反射法的磷石膏渣场监测的试验研究

A Novel Optical Time Domain Reflectometer with Michelson Structure

一种具有迈克耳逊结构的新型光时域反射仪

Design of Time Domain Reflectometry for Application of Soil Moisture and Bulk Electrical Conductivity Measurements

测试土壤含水率和电导率的时域反射仪系统

The application of a new OTDR in passive optical networks

新型光时域反射计在无源光网络中的应用

Real-time Wavelet Transform Based Coherent detecting Brillouin Optical Time Domain Reflectometer

基于实时小波变换信号处理的相干检测布里渊光时域反射计

Influence of Stress Gradient on Measurement Accuracy of Brillouin Optical-Time-Domain-Reflectometry

应变梯度对布里渊光时域反射计测量精度的影响

Application of Time-Domain-Reflectometer to Researching Moisture Variation in Active Layer on the Tibetan Plateau

时域反射仪在监测青藏高原活动层水分变化过程中的应用

Study on the Application of the Time Domain Reflectometry in the Swelling Soil;

时域反射法（TDR）在膨胀土水分量测中的若干问题研究

Detection and Analysis of Aerospace Wire Insulation Faults Based on TDR

基于时域反射法的航空导线绝缘故障检测与分析

Influence of Short Pulses on Measurement Accuracy of Brillouin Optical Time Domain Reflectometers

窄泵浦脉冲对布里渊光时域反射仪测量精度的影响