The antenna and cable must be carefully matched to ensure a low Standing Wave Ratio (SWR).
小心地将天线与电缆匹配,以确保低定波比率(SWR)。
F ROM above, a method to realize the testing of cable partiality online by ultrasound standing wave is advanced.
在此基础上本文提出了利用超声驻波的方法实现电缆偏心在线检测。
The propagation process of pulse wave in the cable and influence of cable length on overvoltage and wavefront time of winding are discussed in this paper.
讨论了脉冲波在电缆中的传播过程以及电缆长度对线圈端的过电压和脉冲上升时间的影响。
In this paper, a unified formulation to determine the terminal currents of an arbitrarily bended cable excited by a plane wave at any polarization angle is presented.
该文给出了架设在地面上的任意弯曲电缆在任意极化平面波照射下,其终端感应电流的通用表达式。
In succession, discussed the radiation condition of Leaky Coaxial Cable, three working frequency bands of radiating wave.
接着,讨论了泄漏同轴电缆的辐射条件、辐射波的三个工作频段。
This article presents the requirements, parameters, performance and size of the cable. Calculated wave impedance for some sizes are listed.
本文简述了这类电缆的一般要求:参数、规格和性能,并提供了部分规格波阻抗计算参考值。
Application of bipolar pulse in transmitting signal can avoid distorted wave caused by charge or discharge in a long cable.
应用双极性脉冲传输信号。避免了因远距离电缆充、放电带来的波形畸变。
The reflection and refraction of traveling wave are quite complicated at the sheath-crossing point of high voltage power cable, due to its remarkably noncontinuous surge impedance.
高压电缆的金属护套交叉互联导致行波在多个波阻抗不连续点产生了复杂的折反射行为,这对高压电缆线路的行波故障测距产生很大的影响。
A two-dimensional time domain met hod is presented for the analysis of dynamic behaviour of the ocean cable system in wind, wave and current.
本文介绍由表面浮标、缆和中间物体组成的综合海洋缆系统动力学特性的二维时域分析方法。
At present, the law of the research on traveling wave effect for cable-stayed bridge with support system is rare in domestic.
目前,国内对于支承体系斜拉桥行波效应影响规律的研究成果并不多见。
A damage detection method was developed to accurately evaluate cable status for working conditions based on the analysis of the traveling wave respond in a cable.
为准确评价工作状态下索的健康状况,分析了索受扰动后的行波响应,提出了行波损伤识别法。
The length measurement theory of electromagnetic wave in transmission line was analyzed and a cable length measuring system based on the reflection of electromagnetic wave was designed.
对电磁波在传输线中的测长理论进行了分析,设计了一种电磁波反射测长系统。
Based on the basis of traveling wave energy absorption method, the formula of allow tension increment of anchorage cable under condition of the blast wave shock is derived.
依据行波能量吸收方法推导出了锚杆受爆炸波冲击时所需张力增量计算公式。
Based on the basis of traveling wave energy absorption method, the formula of allow tension increment of anchorage cable under condition of the blast wave shock is derived.
依据行波能量吸收方法推导出了锚杆受爆炸波冲击时所需张力增量计算公式。
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