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谐振周期
相关语句
  resonance cycle
     The result of analyses show that drive impulse width signifies much to ultrasonic emitting energy and the ultrasonic transducer will produce the maximum ultrasonic energy when the drive impulse width equals a half of the resonance cycle.
     分析表明 ,激励脉冲宽度对超声换能器发射功率影响极大 ,换能器取得最大发射功率所对应的激励脉冲宽度为其谐振周期的一半。
短句来源
  “谐振周期”译为未确定词的双语例句
     A novel high voltage L - C series resonant equipment with a high temperature superconduct ( HTS) inductor and a low voltage DC wource has been developed .
     研究了应用高温超导(HTS)线圈,通过L-C串联谐振电路从低压直流电源产生高电压的新方法。 为了产生高电压,低压直流电源的极性需在电子开关的控制下每半个谐振周期切换一次。
短句来源
     The effects result from either the change of the natural pressure wave period (length effect) or the amplitude of pressure waves (diameter effect).
     从压力波动机理上看,这些影响或源于压力波谐振周期(管长参数),或源于压力波幅值(管径参数)。
短句来源
     The relationships of the amplitudes and energy efficiency of the harmonic wave for the output voltage with the driving duty ratio and resonant cycle number are analyzed in details. Based on this,the design criteria of the circuit are established.
     分析了输出信号中各次谐波幅值和能量比与驱动信号占空比和谐振周期之间的关系,据此提出了驱动电路的设计准则。
短句来源
  相似匹配句对
     A study of resonant wavelengths of long period fiber gratings
     长周期光纤光栅谐振波长的研究
短句来源
     Periodic Solutions and the Resonant Overvoltage in Power Systems
     周期解与电力系统谐振过电压
短句来源
     A BRIEF DISCUSSION OF CYCLE
     周期浅析
短句来源
     Then b is called the base of A. and p the period of A.
     p为A的周期.
短句来源
     Resonance and Tuning
     谐振和调谐
短句来源
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  resonance cycle
Therefore, the resonance cycle is characterized by a vector with for momentum maximums at two orthogonal axes.
      


A novel high voltage L - C series resonant equipment with a high temperature superconduct ( HTS) inductor and a low voltage DC wource has been developed . The output voltage with a HTS inductor of generator would be voltage is substantially increased . A ( Bi, Pb ) 2Sr2Ca2Cu3O10+x multifilament HTS wire is used to make the superconducting inductor . The possible applications of this generator include measuring partial discharge or conducting other kinds of insulation testing for the electric apparatus . It can...

A novel high voltage L - C series resonant equipment with a high temperature superconduct ( HTS) inductor and a low voltage DC wource has been developed . The output voltage with a HTS inductor of generator would be voltage is substantially increased . A ( Bi, Pb ) 2Sr2Ca2Cu3O10+x multifilament HTS wire is used to make the superconducting inductor . The possible applications of this generator include measuring partial discharge or conducting other kinds of insulation testing for the electric apparatus . It can also be used as a testing method for the HTS itself with respect to its electric properties. However, this kind of high voltage generator is not capable of supplying low impedance loads.

研究了应用高温超导(HTS)线圈,通过L-C串联谐振电路从低压直流电源产生高电压的新方法。为了产生高电压,低压直流电源的极性需在电子开关的控制下每半个谐振周期切换一次。谐振电路中电阻的存在限制了它所能产生的高电压幅值。通过用HTS线圈制成的电感取代铜线圈电感,该电路所能产生的高电压的幅度会明显增大,在本文中,(Bi,Pb)2Sr2Ca2Cu3O10+x套银多股HTS线材被用来制造超导电感。虽然用此谐振方式产生的高电压不能给低阻抗负荷供电,但它可能用于电气设备局部放电测试或其他电气绝缘性能的检测等方面作为另一个应用该方法还可用于超导体自身电性能的测量。

The effects on engine volumetric efficiency profile of various intake system components are analyzed in this paper, based on the understanding of the relationship between pressure wave actions and the general volumetric efficiency profile presented in a previous paper . The effects result from either the change of the natural pressure wave period (length effect) or the amplitude of pressure waves (diameter effect). It was found that the general volumetric efficiency profile in the low to mid speed range...

The effects on engine volumetric efficiency profile of various intake system components are analyzed in this paper, based on the understanding of the relationship between pressure wave actions and the general volumetric efficiency profile presented in a previous paper . The effects result from either the change of the natural pressure wave period (length effect) or the amplitude of pressure waves (diameter effect). It was found that the general volumetric efficiency profile in the low to mid speed range is dominated by the total intake system length, while in the high speed range it is governed by primary pipe dimensions alone. The change of the total intake system length, in any part of the system from port to the air entry, shifts the volumetric efficiency profile along the engine speed axis, while the change of diameter has the influence only in a narrower range. The type of plenum, plenum spacing and the diameter profile of upstream components are only minor factors. Based on those the design guidelines are presented.

本文建立在作者的前一篇文章[1]中对进气系统压力波动与发动机充气效率的关系研究的基础上,系统分析了进气系统各部件的设计参数对充气效率的影响。从压力波动机理上看,这些影响或源于压力波谐振周期(管长参数),或源于压力波幅值(管径参数)。试验结果表明:在中、低速区域,充气效率曲线形态取决于进气系统的总长度,各部件之间的管长分布影响较小;而在高速区域则只与进气岐管参数有关。因而,任一部件长度参数的变化,如果改变了系统总长度,将导致充气效率曲线在转速轴上的平移,而管径参数则只在一相对狭窄的区域内对充气效率施以影响。在同一系统总长度前提下,进气歧管的交汇方式,在交汇处的间距,上游部件的形状等等,对发动机充气效率的影响甚微。基于上述结论,本文对进气系统的参数设计提出了几点指南。

A kind of ultrasonic emitting circuit which use power MOSFET as the switch device was analysed.The result of analyses show that drive impulse width signifies much to ultrasonic emitting energy and the ultrasonic transducer will produce the maximum ultrasonic energy when the drive impulse width equals a half of the resonance cycle.This result can provide guide for designing different ultrasonic emitting circuit.

对以Vmos场效应管作开关元件的超声发射电路进行了分析。分析表明 ,激励脉冲宽度对超声换能器发射功率影响极大 ,换能器取得最大发射功率所对应的激励脉冲宽度为其谐振周期的一半。分析结果对于不同类型的超声发射电路的设计具有一定的指导作用

 
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