负载牵引,load-pull
1)load-pull负载牵引
1.Simulation design of microwave power amplifier using load-pull method;基于负载牵引方法的微波功率放大器仿真设计
2.Automatic Measurement of Load-pull Property of Power Solid-state Amplifiers at Microwave Frequency;微波功率固态放大器负载牵引特性的自动测试
3.The second order harmonic output matching networks are optimized by load-pull method.并利用负载牵引法对二次谐波匹配网络进行了优化。
英文短句/例句

1.Parameters Extraction of Power Transistor Based on Load-Pull Measurement System基于负载牵引测试系统的功率管参数提取
2.Study on the Characteristics of the Traction System with Large Inertia Flexibility Load in the Secondary Adjusting Hydrostatic Technology应用二次调节技术的大惯性柔性负载牵引系统特性研究
3.A Study on Load Simulation of Traction Motor of Railway Vehicle轨道车辆牵引电机负载模拟控制的研究
4.Study on Collaborative Simulation Technique of Electro-Hydraulic Traction System with Large Inertia Flexibility Load大惯性柔性负载电液牵引系统联合仿真研究
5.Passenger Dedicated Line s Traction Power Supply Load Modeling on RTDS;客运专线牵引供电系统负载状态数字动模实验系统建模
6.The Research and Application of the Microwave High Power Automatic Test System Based on the Load/Source Pull;基于负载/源牵引法的微波大功率自动测试系统的
7.The loading system developed can be used either indoor to simulate a torsional load or to duplicate an actual drawbar load in the field.系统既可以在室内模拟加载扭矩类负荷,又可以在田间模拟再现实际牵引力负荷。
8.This paper presents the construction and drive system designs and operating load torque calculation for a caterpillar trailer fixed on table with VVVF'S drive system.介绍了新型台式变频履带牵引机的结构设计、作负载转矩计算及拖动系统设计。
9.tractive power牵引力, 牵引功率
10.Harmonic Suppression of the Electric Traction Load Based on DFACTS基于DFACTS的电牵引负荷谐波抑制
11.The Research on the Composite Load Model Structure of Traction System牵引供电系统综合负荷模型结构研究
12.Study on MSVC Suppression of Traction Load Unbalance in Electrified RailwayMSVC抑制电铁牵引负荷不平衡研究
13.Simulation Research on Load Characteristics of Electric Locomotive Traction Motor电力机车牵引电机负荷特性仿真研究
14.gearbox for the works trucks and tractors工程载重汽车及牵引变速箱
15.rotating mechanical broom for tractor mounting牵引车载旋转式机械扫路机
16.maximum design static laod borne by semi-trailer towing vehicle半挂牵引车承受的最大静载荷
17.Electrified Railway Traction Load Negative Sequence Characteristics and Its Negative Sequence Source Modeling Study电气化铁路牵引负荷负序特性及负序源建模研究
18.The load characteristics of the traction power supply system are illustrated for the electrified railways.阐述了电气化铁路牵引供电系统的负荷特性。
相关短句/例句

load pull负载牵引
1.A typical configuration of power load pull system and ΔGt method to verify the accuracy of the whole system were introduced.介绍了典型功率测量负载牵引系统组成,以及验证系统准确性的ΔGt方法。
2.This paper discusses a new microwave power device measurement system-load pull measurement system,and compares it with tradition power device measurement system;This paper also presents the black diagram of the measurement system,the structure and its primary specifications of programmable tune本文介绍一种新的微波功率器件测量装置——负载牵引测量系统,并与传统测量装置进行比较;给出了测量系统原理框图和关键部件——程控调配器的结构及其主要技术指标。
3)Load pulling负载牵引
1.A simulating load pulling technique has been proposed for FET power amplifier analysis by using HP Eesof Series IV software.用 HP EESOF Series IV软件的负载牵引法对功率放大器进行分析 ,给出了匹配电路的基波特性及谐波特性对功率放大器性能的负载牵引结果 ,提出了功率放大器匹配电路谐波设计的思想 ,并给出了设计实
4)traction load牵引负载
5)load-pull负载牵引法
1.In case of large-signal S parameters are difficult to achieved and source impedance and load impedance at 1710MHz~2110MHz provided by the manufacture is useless,a load-pull approach based on Agilent s ADS software is provided in order to obtain required input and output impedance.在大信号S参数无法获得而厂家提供的1710 MHz~2110 MHz范围内的源阻抗和负载阻抗参数又不能用时,利用一公司的ADS软件,采用负载牵引法得到了输入和输出阻抗。
2.this paper adopts the load-pull to present the tracking algorithm for the output power contour on the Smith char by using the microwave power automated test system.结合Smith圆图,利用微波大功率自动调配器测试系统,采用负载牵引法,给出搜索等功率圆曲线的算法。
6)load-pull method负载牵引法
1.The input and output impedance of MRF18030 transistor are obtained by 2-tone load-pull method.采用2-tone负载牵引法得到了LDMOS晶体管MRF18030的输入和输出阻抗。
延伸阅读

电力拖动典型负载特性电力拖动典型负载特性typical load characteristic of electric drive  d一onl{tuodong dlonx一ng fuzo一tex一ng电j7拖动典型负载特性(typieal load char-aeteristic of eleetrie drive)电力拖动负载的转矩TL随转速二而变化的曲线,又称负载转矩特性。为生产机械选配电力拖动系统时,必须考虑到将要建立的新系统在运动过程中能否稳定,及所选系统的输出特性既要符合工艺要求,又要经济合理。为做出这些判断,除了要掌握电动机的机械特性外,还要知道被拖动机械的负载转矩随转速而变化的图1反抗性恒转矩 负载特性特性。典型的负载特性有恒转矩负载特性、恒功率负载特性、风机和泵类负载特性三种。但实际生产机械负载转矩特性也可能是以上三种典型特性的综合。 恒转矩负载特性负载转矩不随转速变化,且保持恒定或大致恒定的负载特性。恒转矩负载特性又可分为反抗性恒转矩负载特性和位势性恒转矩负载特性两种。 (1)反抗性恒转矩负载特性。指恒值负载转矩总是与运动方向相反的负载特性,见图1,如机床的平移刀架、造纸机等的负载特性。有图2位势性恒转矩负载特性的电力施动被拖对象的反抗性负载转矩是转角的周期性函数。活塞式压缩机即属此种类型,其转矩可按平均”丈0 TL图3恒功率负载特性 恒功率负载特性转矩考虑。在实际机械中,常用飞轮作储能元件来减小转矩脉动。 (2)位势性恒转矩负载特性。指恒值负载转矩具有固定的方向,不随转速方向改变而改变的负载特性,见图2,如起重机、电梯等的负载特性。在调速时电动机的输出功率保持恒定或大致恒定的负载特性,TL与,的关系是双曲线,见图3。如要求恒张力收卷的卷取机,设上道工序加工出来的带材的移动速度v为恒定值,忽略卷筒的机械阻力,则仅需保持卷取电卷取电动机动机的输出功率不变,图4卷取机示意图即可在稳定的收卷过程中(包括卷径由小变大的过程)保持带材的张力F不变。卷取电动机的物出功率尸~Fv~kTLn,其中k为常数。在F、v都为恒值情况下,口一图5风机和泵类 负载特性控制卷取电动机在不同转速下的输出功率不变,卷取机就成为恒功率特性的负载,见图4。 风机和泵类负载特性 风机和泵类负载特性是一条抛物线,TL一knZ,见图5。具有风机和泵类负载特性的机械设备有风扇、油泵、水泵等。