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frequency conversion     
相关语句
  变频
     A New Scheme for Series Frequency Conversion
     一种新型的串联变频方案
短句来源
     The Study of Load Disturbances to Electric Voltage Frequency Conversion Governor System
     电压型变频调速系统负载扰动的研究
短句来源
     Study on Torsional Vibration of Large AC-AC Frequency Conversion Rolling Mill Motor
     大型交交变频轧钢电动机扭振问题的研究
短句来源
     The Analysis of Watcr Pump Economizing on Energy of Frequency Conversion Adjusting Speed
     水泵变频调速节能分析
短句来源
     A Method for Single Fault Diagnosis of Transmission Line Based on Frequency Conversion and Locking Voltage
     传输线单一故障诊断的变频电压锁定法
短句来源
更多       
  变频调速
     Application of 80C196MC Singlechip in SPWM Frequency Conversion Regulating
     80C196MC单片机在SPWM变频调速中的应用
短句来源
     The frequency conversion of exchange based on TMS320C2812 adjusts the design systematic in speed
     基于TMS320C2812的交流变频调速系统的设计
短句来源
     Application of TMS320F240 in Frequency Conversion Regulating System of Motorized Spindle
     TMS320F240在电主轴变频调速系统中的应用
短句来源
     This paper discusses the SPWM frequency conversion regulating system formed with 80C196MC and IPM intellective power model.
     本文讨论了由 80C196MC和智能功率模块IPM组成的SPWM变频调速系统。
短句来源
     The application of frequency conversion adjusting speed technology in 1.6m double-drum winch
     变频调速在1.6m双滚筒绞车的应用
短句来源
更多       
  频率变换
     Properties of Frequency Conversion in a New Nonlinear Crystal-CsLiB_6O_(10)
     新型非线性晶体CsLiB_6O_(10)的频率变换特性
短句来源
     Properties of Frequency Conversion in a New Bismuth Triborate (BiB_3O_6) Crystal with High Nonlinear Optical Coefficient
     新型高非线性光学系数三硼酸铋(BiB_3O_6)晶体频率变换特性研究
短句来源
     Frequency conversion of generation 193 nm laser for new deep ultraviolet sum-frequency crystal CLBO
     深紫外和频晶体CLBO产生193nm激光的频率变换
短句来源
     Research on the Electro-Optic Effect and Nonlinear Optical Frequency Conversion Technology of KTP Crystal
     KTP晶体电光效应及非线性光学频率变换技术的研究
短句来源
     Properties of Nonlinear Frequency Conversion in a New Optical Crystal KABO
     新型光学晶体KABO的非线性频率变换特性
短句来源
更多       
  频率转换
     The input frequency control word is 32bit,the output amplitude is 16bit,the highest operating frequency is 83.33MHz,the time of the frequency conversion is 440 nanosecond,the frequency resolution is 0.0196Hz,the highest spurious is-114dB.
     系统输入频率控制字32位,输出幅度位数16位,最高工作频率83.33 MHz,频率转换时间440 ns,频率分辨率0.0196 Hz,杂散指标-114 dB。
短句来源
     A compact 1.57 μm Eye-saft Laser Frequency Conversion Device Based on KTP OPO
     小型一体化1.57μm人眼安全激光频率转换KTP OPO
短句来源
     This paper introduces the data transmit method of digital to frequency conversion(D/F)- frequency to voltage conversion(F/V) and data gather method of voltage to frequency conversion(V/F)-frequency to digital Conversion(F/D), describes D/F?
     介绍了数字 /频率转换 (D/F)—频率 /电压转换 (F/V)的数据发送方法和电压 /频率转换 (V/F)—频率/数字转换 (F/D)的数据采集方法 ,并对D/F、F/D电路以及F/V、V/F电路进行了详细介绍。
短句来源
     A new data transforming method of D/F(digital to frequency conversion) was adopted to export frequency in the novel digital Coriolis mass flowermeter.
     对新型全数字式科氏质量流量计频率输出信号采用数字—频率转换D/F(Digital to Frequency Conversion)方法实现.
短句来源
     Investigation on All-optical Frequency Conversion Technology Based on PPLN Waveguide
     基于PPLN波导全光频率转换技术的研究
短句来源
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      frequency conversion
    Extension of the Acceptable Active-Loss Range of a Transducer in a Capacitance-to-Frequency Conversion
          
    An interferometer for a wavelength of 8 mm, capable of homodyne frequency conversion for measuring the electron density of a steady-state plasma from a high-frequency ion source, is described.
          
    The schematic and results of studying an interferometer for a wavelength of 8 mm with homodyne frequency conversion for measuring the electron density of a steady-state plasma are described.
          
    After a special frequency conversion of the received signal, the multipath responses are separated in the frequency domain by conventional band-pass filtering.
          
    The use of this regime of nonlinearly optical interactions opens up the possibility of attaining high frequency conversion efficiencies irrespective of the synchronization length in the interior volume of a nonlinear material.
          
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    In practice we may find that the signal voltag is commensurable with the local oscillato voltage in frequeny changing, i, e., the lai'ge signal frequency conversion. This frequney coversion is investigated in this paper. The parameters of the single grid and double grid freqency changers are derived by the broken-line method and hyperbolic functions.

    本文研究了信号电压与外差振荡电压可以比拟时,即大信号时,变频器的工作情况。用折线法及双曲线函数法导出了变频参数。

    A nonlinear circuit is investigated, which is characterized by high effeciency, simple and reliable construction, and large tuning frequeney range. For the circuit operating in AC and saturation condition, a mathematical model of the ferrites as the nonlinear inductance element is built up. Along with the exp-erimental work done on the circuit, the frequency conversion characteristics of the nonlinear circuit, the limit of the frequency multiplication, and the power output are discussed by means...

    A nonlinear circuit is investigated, which is characterized by high effeciency, simple and reliable construction, and large tuning frequeney range. For the circuit operating in AC and saturation condition, a mathematical model of the ferrites as the nonlinear inductance element is built up. Along with the exp-erimental work done on the circuit, the frequency conversion characteristics of the nonlinear circuit, the limit of the frequency multiplication, and the power output are discussed by means of com-puter-aided analysis. Computed results by computer are compared with the experimental ones.

    我们研究了一种效率高、结构简单可靠、频率可调范围宽的非线性电路。建立了在该电路中(交流和饱和状态运用)以铁氧体作为非线性电感的数学模型。从实验着手,借助于计算机辅助分析,探讨了该非线性电路的变频特性、倍频极限和功率输出。最后把计算机的计算结果与实验结果进行了比较。

    After having accurately analyzed the difficulties during the frequency conversion,we introduced a reasonable phase-locked frequency stabilization mode and carried out a careful adjustment. Thus, a microwave signal at 5cm band was successfully heterodyned directly to 0.01Hz by means of a "long step" frequency conversion technique. It was observed from the low frequency signal on the microwave mixer that the wave form was clear and stable. Having been tested and analyzed with the frequency...

    After having accurately analyzed the difficulties during the frequency conversion,we introduced a reasonable phase-locked frequency stabilization mode and carried out a careful adjustment. Thus, a microwave signal at 5cm band was successfully heterodyned directly to 0.01Hz by means of a "long step" frequency conversion technique. It was observed from the low frequency signal on the microwave mixer that the wave form was clear and stable. Having been tested and analyzed with the frequency and time domain methods, the low frequency signal proved to be ideal.

    作者在正确地分析了将频率变换到较低频率时所遇到的困难后,采用了合理的锁相稳频方式,通过精细的调整,成功地把五公分频段微波信号仅经一次外差直接变频到0.01Hz。观察从微波混频器上取得的低频信号,波形清晰、稳定。频域和时域测试分析表明,该低频信号是较理想的。

     
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