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横向阻抗的
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  lateral impedance
     Model Analysis Method for Wheel Lateral Impedance
     列车车轮横向阻抗的模态分析方法
短句来源
     This paper deduces the mathematical representation of the wheel lateral impedance by using the statianalysis method, and approves the rightness and feasibility of this method.
     用模态分析的方法推导出列车车轮横向阻抗的数学表达式,并证明了此种方法的正确性及可行性。
短句来源
  “横向阻抗的”译为未确定词的双语例句
     Presents some results of numerical simulation of cavity 3D models' transverse impedance to compare the difference between these two power pulse feed-in models cavities.
     在加速腔的横向阻抗方面,建立了采用两种馈入方式的加速腔的三维模型,利用Mafia程序分别计算了模型的横向耦合阻抗,比较了这两种方式对加速腔横向阻抗的影响。
短句来源
     Measurement of Transverse Impedance For LIA Cavity
     直线感应加速腔横向阻抗的测量
短句来源
     AN ESTIMATING METHOD FOR ARTERIAL TRANSVERSE IMPEDANCE
     血管横向阻抗的一种确定方法
短句来源
     The arterial transverse impedance is an important hemodynamic parameter, but studies and experimental results on which are much lacking.
     血管横向阻抗是血液动力学的重要参量之一,但人们对横向阻抗的研究却相当缺乏,相关的实验数据也很稀少。
短句来源
     In this paper a method to determine the arterial transverse impedance through the arterial compliance of unit length vessel is jointly, with the related data of transverse impedance in the canine arteries including carotid、femoral artery、and aorta. These results agree well with the experiments of Milnor et al(1978) and Busse et al(1979) in vivo, which showed the method given in this study is simple and useful for the determination of vascular transverse impedance.
     本文提出通过血管顺应性确定血管横向阻抗的方法,并给出狗颈动脉、股动脉和主动脉横向阻抗的数据,结果与Milnor等(1978)以及Busse等(1979)的结果相当吻合,表明本文提出的方法是一种简便可靠的确定横向阻抗的方法。
短句来源
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  相似匹配句对
     Model Analysis Method for Wheel Lateral Impedance
     列车车轮横向阻抗的模态分析方法
短句来源
     Measurement of Transverse Impedance For LIA Cavity
     直线感应加速腔横向阻抗的测量
短句来源
     Suppression of transverse stimulated Brillouin scattering
     横向受激布里渊散射的抑制
短句来源
     A Study on Cross Effect
     论横向效应
短句来源
     Technology Study on Property Impedance
     特性阻抗的工艺研究
短句来源
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  lateral impedance
The mathematical theory of lateral impedance of visual activity and an application of Markov processes
      


This paper presents a new problem on the filter properties of the axial conductor loaded helix. By using the equivalent transmission network analysis, it shows that the filter properties are different from those of the structures as suggested in narrow band TWT. In this kind of structure, the TWT can be constructed not only in narrow band operation, but also can be constructed in super-wide band operation.The theoretical analysis of the axial conductor loaded helix shows that its transverse impedance can be...

This paper presents a new problem on the filter properties of the axial conductor loaded helix. By using the equivalent transmission network analysis, it shows that the filter properties are different from those of the structures as suggested in narrow band TWT. In this kind of structure, the TWT can be constructed not only in narrow band operation, but also can be constructed in super-wide band operation.The theoretical analysis of the axial conductor loaded helix shows that its transverse impedance can be loaded lower enough even to 50 ohms and easy matched to the external coaxial coupler directly, while at the same time, it still maintains the coupling impedance in rather higher values and obtains high gain in TWT.The one of the distinguished advantage of the filter type slow wave circuit using in TWT is its property of suppression the BWO. Axial conductor loaded helix also has such kind of property. Dr. Otto Sauseng of USA in 1970 had adopted this kind of slow wave circuit in his TWT, no BWO occured, yet he gave no explaination. Actually, as shown in this paper, the suppression of BWO is due to the filter property of the structure. The TWT when using this kind of structure shows that the operation is quite stable. The theoretical calculation method of the axial conductor loaded helix as used in USA is the S. F. Paik's method, while in USSR the H. H. method is used. But these two methods mainly gave out the dispersion relations, no filter properties were pointed out, and no such kind of characteristics as the pass-band, the stop band, the suppression of BWO, the effect of the numbers of metalic conductor, the effect of the dimensions of the metalic conductor, and the effect of the position of the coaxial coupler, were revealed out. While in this paper, all these problems are analyzed and relations are given. Besides, the cold circuit experiment has been performed and the dispersion curve obtained is shown more close in this method than in S. F. Paik's method, and the match of the input coupler in super-wide band is also quite well. Therefore this filter analyzing method can be used to design such kind of loaded helix for super-wide band TWT.

本文首次指出了纵向金属条加载螺旋线的滤波性质这一新问题。这种慢波结构的滤波性质有别于过去国外所提出的滤波螺旋线。它不仅能够构成窄通带的行波管,而且也可以构成超宽通带行波管。其次,用它作为行波管的慢波线时,它的横向阻抗可以压低,易于与外接耦合头直接匹配,而它的耦合阻抗仍可保留较高的数值,使行波管在超宽通带范围内仍可获得较大的增益分贝数。滤波性慢波线行波管的另一优点,是它的抑止返波振荡的性质。纵向金属条加载螺旋线同样具有此一性质。 本文对纵向金属条加载螺旋线的滤波性质作了理论分析,对它的色散特性作了冷测试验,两者有良好的相符。 纵向金属条加载螺旋线的计算,在美国系用Paik的方法,而在苏联有方法。这二个方法仅解决了色散的计算,而完全没有涉及滤波的性质,因而也没有提出诸如通带、禁带、抑止返波振荡、金属条数目、金属条宽窄和激励头地位等等的性质和问题。本文的理论分析对这许多问题均作出了回答,理论分析符合冷测结果,因而它可供设计计算之用。

A multi-conductor structure distributed along a circle is investigated in this paper.The multi-conductor thickness are taken into consideration.TEM wave propa- gating in this structure is investigated in detail.The expressions of field distribution, coupling impedance and characteristic impedance are derived.The chcracteristic impe- dances are calculated numerically and discussed in detail.The results obtained in this paper can be used for microwave tubes,harmonic gyrotron oscillator and electrosta- tic electron...

A multi-conductor structure distributed along a circle is investigated in this paper.The multi-conductor thickness are taken into consideration.TEM wave propa- gating in this structure is investigated in detail.The expressions of field distribution, coupling impedance and characteristic impedance are derived.The chcracteristic impe- dances are calculated numerically and discussed in detail.The results obtained in this paper can be used for microwave tubes,harmonic gyrotron oscillator and electrosta- tic electron cyclotron maser.

本文研究了一种分布在圆周上的多导体结构。这种多导体结构不仅可能应用在普通微波电真空器件中,而且在高次回旋谐波低磁场回旋管及静电电子回旋脉塞中也有良好的应用前景。本文在考虑了多导体厚度情况下详细研究了该系统中的最低波型,即 TEM 波。从麦克斯韦方程出发,导出了系统中各区域中的场分布表达式。在此基础上求出了系统的耦合阻抗与横向阻抗的表达式。横向阻抗是考虑系统匹配的依据,本文对它进行了详细讨论,并进行了普适的数值计算,给出了计算结果,讨论了系统诸几何参量对横向阻抗的影响。

The research on the transverse impedance measurements of a linear induction accelerator cavity is presented.The device is transformed into a coaxial(TEM) configuration by inserting two parallel off axis wire conductors.Scattering parameters are measured using a network analyzer(HP8753D) with a computer as a controller.By comparing and calculating,the shunt impedance Z ⊥ is found.In order to eliminate the multiple reflection caused by nonmatched...

The research on the transverse impedance measurements of a linear induction accelerator cavity is presented.The device is transformed into a coaxial(TEM) configuration by inserting two parallel off axis wire conductors.Scattering parameters are measured using a network analyzer(HP8753D) with a computer as a controller.By comparing and calculating,the shunt impedance Z ⊥ is found.In order to eliminate the multiple reflection caused by nonmatched 50Ω coaxial transmission line to the beam pipe end,time filtering is used.Analyzing of the measurement error is presented too.

采用束流模拟法测量强流直线感应加速器加速腔横向阻抗,给出了加速腔的测量结果。采用了时域变换法提高不匹配情况下测量精度的方法,对引起测量误差的原因进行了分析。这有助于深入理解强流加速腔内的物理过程,改进加速腔设计,提高直线感应加速器整机性能。

 
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