virtual cathode 中文意思是什麼

virtual cathode 解釋
假想陰極
  • virtual : adj. 1. 實際上的，實質上的，事實上的。2. 【物理學】虛像的。3. 【物理學】有效的；【計算機】（網上）虛擬的。4. 〈古語〉具有可產生某種效果之內在力的。
  • cathode : n. 【電學】陰極，負極。
  1. High power radial reflex klystron oscillator with virtual cathode

    新型高功率虛陰極徑向反射速調管振蕩器
  2. Pspice models for fcg, pulse transformer, electric exploding wire opening switch ( eeos ), blumlein pulse forming line, and virtual cathode osillator ( vircator ) are created

    利用pspice程序，創建了包括脈沖變壓器、電爆炸絲（ eeos ） 、 blumlein傳輸線、虛陰極振蕩器（ vircator ）和fcg等在內的電路元件模型庫。
  3. This new radial reflex klystron oscillator with virtual cathode is designed and simulated by 2. 5 - d pic code

    分析了電子束在徑向反射腔中形成虛陰極的過程和虛陰極對電子束的調製作用。
  4. Several new styles of radial klystron oscillators are studied theoretically and numerically. these new members include : the radial klystron oscillator with foldaway - concentric cylindrical cavity, the radial reflex klystron oscillator with virtual cathode and radial reflex klystron with open foldaway - concentric cylindrical cavity

    它們是折疊式諧振腔徑向速調管振蕩器，高功率虛陰極徑向反射速調管振蕩器，開放式同軸折疊式諧振腔徑向反射速調管振蕩器。
  5. The feed - back provided by the reflected electron beams reduce the start - up current and the start - up time in a vircator, while the existence of klystron cavity improves the extracting efficiency, hence the radial reflex klystron oscillator with virtual cathode combines the advantages of both devices, becomes a compact, efficient set

    利用虛陰極反射電子束對調制腔的正反饋，可以減小起振電流和起振時間，而且提高了微波產生效率。它是一種結構簡單，緊湊，不需要引導磁場的器件。
  6. The radial high current forms the virtual cathode in the reflected high frequency field, which further modulates the emitted electron beam

    徑向強流電子束在徑向反射場中會形成虛陰極振蕩，單獨的虛陰極振蕩產生的微波效率低。
  7. The frequency and mode of the generated microwave are very pure. these results can provide a possible method for constructing a compact high - power microwave device. in addition, a virtual cathode oscillator with an axially extracted te11 mode based on the spark05 accelerator in our laboratory has also been investigated using the pic simulation code

    基於spark05加速器電子束參數設計的軸向提取te11模虛陰極振蕩器，利用類似的設計思想，通過改變電壓的饋入方式和陰陽極結構，實現了中心陰極負脈沖電壓的激勵，同樣獲得了較好的粒子模擬優化結果。
  8. The virtual cathode oscillator ( vircator ) is one of the most important devices that can produce high power microwaves. for the increasing of microwave power and the locking of operation frequency, researchers have proposed many different types of improved vircators

    軸向反饋式虛陰極振蕩器主要利用反饋微波調制電子束和虛陰極，從而增大微波輸出功率、提高效率、穩定頻率、凈化模式。
  9. A virtual cathode oscillator with an axially extracted te10 or te11 mode has been investigated using the pic code. it can emit microwaves axially through an antenna without mode converter or transition waveguide, making the system more simple and compact. the efficiency of this device can be enhanced by employing premodulation cavity, resonant cavity, feedback mechanism, and virtual cathode formed by two electron beams

    本文利用物理分析和粒子模擬的方法研究了軸向提取te10 / te11模虛陰極振蕩器，結果表明通過引入預調制腔、諧振腔、反饋端面、雙電子束陰極等結構，可以實現結構相對緊湊、束波轉換效率較高的軸向提取虛陰極振蕩器。
  10. Next, the effects of the electron - beam quality on the characteristics of the vircator are investigated with simulation method. the simulation results show that the front edge of the beam pulse has almost no effect on the saturated microwave output, while good front edges can accelerate the saturation of the virtual cathode oscillation, and beam quality ( except its energy spread ) has almost no effect on microwave frequency, and so on

    結果表明：上凸形束脈沖前沿可使虛陰極振蕩器達到飽和振蕩的時間縮短但對微波飽和功率基本無影響；束流脈寬應足夠大，否則虛陰極振蕩器不能達到飽和振蕩（對應本文中的模型，束脈寬應大於16ns ） ；能散度的影響不可忽視，當能散度為5時，束波轉換效率從單能束時的3 . 8降至1 . 5 ；束流質量（除能散度外）對微波頻率基本上沒有影響等。
  11. A virtual cathode oscillator with axially extracted te10 mode of rectangular waveguide has been designed and manufactured. the measurement system which is used to diagnose microwaves emitted by the virtual cathode oscillator has been prepared

    對基於tomachan加速器參數的軸向提取矩形波導te10模虛陰極進行了工程設計和加工，並對測量系統進行標定，為下一步的實驗研究工作打下了基礎。
  12. A virtual cathode oscillator with an axially extracted te10 or te11 mode based on the tomachan accelerator in our laboratory is investigated using the pic simulation code. the tomachan accelerator can run with an electron beam of 400kev and 8. 9ka

    基於tomachan加速器電子束參數設計的軸向提取te10 / te11模虛陰極振蕩器，不需要改變束-波作用區結構，只需通過更換提取波導，即可實現te10 / te11模式微波的軸向提取。
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