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amplifier
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  放大器
    Study on the Key Technology of Radio Frequency MEMS Switch and Amplifier
    射频微机械开关与放大器关键技术研究
短句来源
    Microwave Integrated Parametric Amplifier
    微波集成参量放大器
短句来源
    A Development of Microcurrent Wide-Band Amplifier in the DLZ-1
    DLZ-1中微电流宽带放大器的研制
短句来源
    A Method of Analysis of a Feedback Amplifier
    反馈放大器的一种分析方法
短句来源
    The Research and Experiment of Double- Road Symmetrical Amplifier
    两路对称放大器的研究与实验
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  放大
    Test system for phase noise of the pulsed power amplifier chain
    脉冲功率放大链相位噪声测试系统
短句来源
    Low-level human body model(HBM)ESD stresses were imposed on microwave low noise amplifier NPN silicon epitaxial transistor 2SC3356; it was shown that the DC current gain hFE degraded gradually with the increment of the times of ESD stresses.
    从CB管脚对微波低噪声NPN晶体管2SC3356施加低电压人体模型(HBM)的ESD应力,发现,随着ESD应力次数的增加,器件的放大特性hFE逐渐退化,并且当电压达到一定水平,多次的ESD可以使器件失效.
短句来源
    The experimental results indicate that the amplifier circuit has capability to linearly and steadily adjust the flux of blood pump ranging from 0 to 460 ml/min.
    实验结果表明,该功率放大电路能很好地实现血泵血流量在0~460ml/min范围内线性、稳定调节。
短句来源
    MCU AT89C51 is adopted to control DDS chip AD9850 to produce the sine signal which frequency may be adjusted. The pure signal can be obtained through the low pass filter,and then target signal is drove by the power amplifier.
    采用单片机AT89C51控制DDS芯片AD9850产生频率可调的正弦信号,并通过低通滤波器得到纯正的信号,最后经过功率放大驱动电路输出目标信号。
短句来源
    Design and Finite Element Analysis for the Displacement Amplifier of Harmonic Piezomotor
    压电谐波电机位移放大机构的设计及有限元分析
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  “amplifier”译为未确定词的双语例句
    Development of Transistor power Amplifier for ZDD-5PLC Terminal
    ZDD—5电力载波机晶体管功放盘的研制
短句来源
    Dynamic Analysis of Three-Phase Magnetic Amplifier of the Transductor Type with Bridge Rectifier Output Circuit and Control Circuits Connected in Parallel
    带桥式整流输出时控制回路并联的三相扼流磁放大器动态分析
短句来源
    AStudy of ImProving Current Stability of the Rectifier Welder of Mangetic Amplifier Type
    提高磁放大器式整流焊机电流稳定性的研究
短句来源
    Theoretical Analysis of the Ideal Magnetic Amplifier under the Action of the Rectangular-Wave Voltage
    在方波电压作用下理想磁放大器的理论分析
短句来源
    Design of Contactless Charging Circuit based on Magnetic Amplifier
    基于磁放大器的无接触充电电路研制
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  amplifier
And we simulated the transmission model constructed with Erbium-doped fiber amplifier (EDFA) as the solo amplifier and the chirped fiber Bragg grating (CFBG) as the solo dispersion compensator used in the system.
      
The displacement of a piezoelectric multilayer actuator was amplified by a flexure-hinged amplifier based on the principles of triangle amplification.
      
A new electron beam (EB) control system was developed in a general vacuum EB machine by equipping it with an industrial control computer, programmable logic control (PLC), deflection coil, data acquisition card, power amplifier, etc.
      
This problem is of interest in connection with the possibility of application to the design of jet amplifier-one of the elements of fluidic automatic control (pneumonies) [1, 2].
      
The influence of a chain pumping reaction mechanism in a diffusion-type continuous-action chemical amplifier on an RF molecule is investigated.
      
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In this paper, the dynamic process of the current rise of magnetic amplifiers with inductive load is investigated with a consideration of the redistribution of voltages which leads to a change in the equivalent time-constant of the load-circuit and in the dynamic behaviour of the secondary circuit. Influence of paralleled condenser load, and the internal and external feedback on the dynamic process are also considered.

带直流感性负荷时磁放大器的动态过程具有以下两种显著的特点: 1.在负荷电流增长过程中有着动态电压重新分布的现象,它导致负荷迴路等值时间常数的改变,并对次端(控制端)带来影响; 2.类似线路中负荷电流的衰减过程具有某种特殊的规律,在一般情况下不能用统一的动态方程加以描述. 本文着重讨论了负荷电流增长过程的特殊规律.文中分析了动态电压重新分布的现象以及内外反馈、负荷并联电容对动态过程的影响.

A high power automatic voltage regulator with a wide operating range is presented,which is simple in construction and convenient in making. It is shown that in the con-trol system the series-connected magnetic amplifier, the d.c. motor, the induction voltageregulator and the error detector are linked in cascade. A design procedure of the con-trol system is described, in which an analogue computer is used. This automatic voltageregulator is being used with an accuracy of ± 1.5 V. It has been proved that...

A high power automatic voltage regulator with a wide operating range is presented,which is simple in construction and convenient in making. It is shown that in the con-trol system the series-connected magnetic amplifier, the d.c. motor, the induction voltageregulator and the error detector are linked in cascade. A design procedure of the con-trol system is described, in which an analogue computer is used. This automatic voltageregulator is being used with an accuracy of ± 1.5 V. It has been proved that its opera-tion is reliable with no special maintenance required.

本文介绍了一种结构简单、易于实现的大功率可调稳压器,在这种稳压器的控制线路中,采用了二级磁放大器推动直流电动机来进行电压自动调整。文中介绍了高效率的磁放大器线路及调整系统的设计方法。经过实际运转,输出电压波动为±1.5伏,工作可靠,不需要进行特别维护。

In this paper, some methods of impoving the reliability of the non-crossing current thysister drive system for a planer are proposed. It is proved both in theoretical analysis and practice that it is more reliable in control logic to use delayed-locking and delayed-opening circuit. The speed regulator is discussed in detail. The effect of non-linear characteristics of the operational amplifier on system performance is analyzed. Both in theoretical analysis and practical experience show that in order to...

In this paper, some methods of impoving the reliability of the non-crossing current thysister drive system for a planer are proposed. It is proved both in theoretical analysis and practice that it is more reliable in control logic to use delayed-locking and delayed-opening circuit. The speed regulator is discussed in detail. The effect of non-linear characteristics of the operational amplifier on system performance is analyzed. Both in theoretical analysis and practical experience show that in order to get the transient respones without overshoot, speed regulator with speed derivative feedback is more reasonable than ordinary PI regulator. The method of calculating parameters of the regulator is also given.

本文介绍了龙门刨可控硅供电无环流拖动系统中提高可靠性的一些措施。文中讨论了无环流逻辑控制方式,分析和实践证明采用延时封锁延时开放的方案更为可靠。文中还着重分析讨论了速度调节器的方案,分析了放大器非线性特性对速度调节系统的影响。理论分析和实践经验都说明,为了保证起制动过程中速度不超调,采用带速度微分反馈的速度调节器比一般常用的近似比例积分(PI)调节器更为合理。文中还介绍了调节器参数选择计算的方法。

 
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