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调制器
相关语句
  modulator
    The Theoretical Analysis and Calculation on Magnetic Modulator
    磁调制器的理论分析与计算
短句来源
    Precision PFN Voltage Regulator for Radar Modulator
    雷达调制器的人工线电压精密调节器
短句来源
    DESIGN OF PWM CONTRAVARIANT MODULATOR WITH MICRO-COMPUTER CONTROL
    微机控制PWM逆变调制器设计
短句来源
    PERFORMANCE AND REALIZATION OF DELTA PULSE MODULATOR
    DELTA脉冲调制器的性能研究与实现
短句来源
    Development of a Travelling-Wave Electrode in Electro-optic Phase Modulator
    电光相位调制器行波电极的研制
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  “调制器”译为未确定词的双语例句
    An All Solid-State Modu-lator for the ARSR-3 Transmitter
    ARSR-3发射机的全固态调制器
短句来源
    The full wave at half maximum (FWHM) of the pulse generated by EAM under the microwave modulation of 2.5GHz is 30.8ps, whose shape is close to that of the sech~2-type pulse.
    在2.5GHz微波调制下测量得到,电吸收调制器产生的光脉冲半极大全宽为30.8ps,波形接近sech~2型,频率啁啾约3.8GHz。
    PARAMETERS TUNING OF HVDC SMALL SIGNAL MODULATION CONTROLLERS BASED ON TEST SIGNAL
    基于测试信号的直流小信号调制器参数整定
短句来源
    In the vacuum diode of accelerator, high voltage pulse of 500kV, 40kA with 80ns (FWHM) has been obtained. 
    在调制器的真空二极管上已获得450kV,40kA、半高脉宽大于80ns的高电压脉冲。
短句来源
    The design of a 40GHz broadband light source is presented.
    介绍了基于LiNbO3电光强度调制器的40GHz宽带调制光源的设计.
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  modulator
Design of a piezoelectric transducer cylindrical phase modulator for simulating acoustic emission signals
      
To conveniently carry out the pipeline leak experiment in a laboratory, leak acoustic signals are simulated by using the converse piezoelectric effect of a piezoelectric transducer (PZT) cylindrical phase modulator.
      
On the basis of the piezoelectric equations and electromechanical equivalence principle, the transfer function of a PZT cylindrical phase modulator is delivered.
      
A PZT cylindrical phase modulator is designed, and the numerical simulation is conducted.
      
Results prove that the PZT cylindrical phase modulator can effectively simulate leak acoustic emission signals when the frequency is lower than 25 KHz.
      
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Modulators are important elethents in the amplificatiou of weak d.c.sig-nals.Magnetic modulator have the ProPerties of providing highest voltage ga-can,stably amplify weak d.c.signals of the order of 10~13 watta Being stmpie in construe-tion of hasic frequency magnetic modulators,and a simple metbod of calculations from graphs together with an example and some discussion on manufacturing techniques

调制器是放大微弱直流信号的重要环节。目前通用的各种调制器中,磁调制器具有最高电压放大倍数、灵敏度和稳定性能。基频磁调制器可稳定地放大功率为10~(-13)瓦的微弱直流信号,并且简单可靠,在一般自动调节和随动系统中得到广泛应用。本文阐述一种改进的基频磁调制器线路结构,提出一种简捷图解计算法,并给出了计算举例、实验结果和制造工艺中某些问题。

This paper gives a detail illustration of a modulator which has an output of 10MW pulse peak power, 75KV peak voltage and 3μs puIse width with the repetition rate of 300pps, ±0.25% amplitude drift between pulses and ±0.5% top deviation in a pulse. The measures employed in getting the above-mentioned performances, the designing methods and the experimental results are also presented.

本文介绍了20 Mev医用电子直线加速器所用输出峰功率为10MW,脉冲峰压为75KV,脉宽为3μS的调制器,要求脉间稳定度为±0.25%,脉内不平度为±0.5%。文章介绍了达到这些指标采取的措施,设计方法及实验结果。

This paper describes a new attenuation measuring system with a modulated subcar-rier technique built by NIM in 1978, The system operates at the frequency range of 4.5 to 5.5 GHZ with an uncertainty of 0.004dB/10dB from O to 40 dB. Error analysis is given in detail. The carrier content in the subcarrier channel can be suppressed by the balanced modulator to extend the dynamic range of measurements. A section of coaxial cable is inserted in the measuring channel to make soft connection for the calibration of...

This paper describes a new attenuation measuring system with a modulated subcar-rier technique built by NIM in 1978, The system operates at the frequency range of 4.5 to 5.5 GHZ with an uncertainty of 0.004dB/10dB from O to 40 dB. Error analysis is given in detail. The carrier content in the subcarrier channel can be suppressed by the balanced modulator to extend the dynamic range of measurements. A section of coaxial cable is inserted in the measuring channel to make soft connection for the calibration of atten-uators having different lengths.

本文叙述采用平衡调制器的五厘米波段调制副载波法衰减测量装置,并对此装置测量衰减的误差进行了分析,结果表明:在0~40分贝量程内,准确度为士0.004分贝/10分贝。本装置的副载波通道采用软连接,这对校准不同长度的衰减器极为方便。

 
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