徑向振蕩 的英文怎麼說
中文拼音 [jìngxiàngzhèndàng]
徑向振蕩
英文
radial oscillation-
Study of one new hpm radial klystron oscillator with foldaway concentric circular cylinder resonant cavity
一種新的高功率微波折疊式諧振腔徑向速調管振蕩器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Radial klystron oscillator driven by intense relativistic electron beam
新型高功率徑向強流速調管振蕩器The spread features of sst mjo are not clearly
55了季內振蕩沿上述路徑的傳播方向不清晰。According to the guidline, two nd : yag lasers have been designed and set up, one is end - pumped by lower output power ld using a selfoc micro lens, and the other is end - pumped by high output power ld using a pair of lenses are designed, and the characteristics such as output power and power stabilization of both solid - state lasers are investigated. thirdly, when an empty liquid crystal cell is inserted in the cavity of the nd : yag laser pumped by high power ld, the laser can operates in single axial mode. finally, according to the relationship between the laser output power and the longnitudinal a ld - end - pumped nd : yag laser sensor for displacement measurement has been investigated theoretically and demonstrated experimently, the results indicate that when the mean radius of pumping inside the laser cavity is far less than that of the oscilating laser mode, the exponential of the output power is a gauss function of the longitudinal positon of focused spot of ld pumping beam, both the measurement range and the sensitivity are dependent on the incident pumping power, as the incident pumping power is increased, the measurement range is enlarged and the sensitivity is improve d
本文首先介紹了ld泵浦nd : yag激光器的發展狀況、主要特性及其應用,從四能級速率方程出發,推導了ld泵浦nd : yag激光器的閾值、輸出功率和斜效率的表達式,並簡述了激光器的工作原理、結構型式和倍頻方法;其次,以空間相關的速率方程為基礎,提出了ld端面泵浦nd : yag激光器的設計方法,給出了一定泵浦耦合方式下,振蕩光模尺寸、最佳輸出耦合率、泵浦光模尺寸、泵浦光焦斑位置等參數的選取依據,以此為依據,設計了自聚焦透鏡耦合小功率ld泵浦nd : yag激光器和透鏡組耦合高功率ld泵浦nd : yag激光器,對激光器的輸出功率和功率穩定性等特性進行了實驗研究;再次,在帶尾纖輸出的高功率ld泵浦nd : yag激光腔內插入一隻空液晶盒,觀察到了激光器以單縱模運轉;最後,根據泵浦光焦斑端面位置對激光輸出功率的影響規律,提出了ld端面泵浦nd : yag激光位移傳感新方法,並進行了理論和實驗研究,研究結果表明:當激光晶體內泵浦光平均光斑半徑遠小於振西安理工大學碩士學位論文蕩光束腰半徑時,激光輸出功率的自然指數與泵浦光焦斑的縱向位置成高斯變化規律,測量范圍和靈敏度依賴于泵浦功率,隨著泵浦功率的增加,測量范圍擴大,靈敏度提高,當端面泵浦功率為7 . 24w (最大輸出功率為1 . 926w )時,激光位移傳感器的測量范圍和靈敏度分別是13 . 045mm和0 . 148mw / pm 。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。Hydrodynamic theory of the interaction in radial transit - time oscillator
徑向渡越時間振蕩器互作用特性的流體理論分析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。Particles coupling between horizontal and vertical oscillations in csrm
束流徑向和軸向振蕩的耦合The input electrical power at the given voltage is increased due to the larger emitting surface of the radial structure and the space - charge effects are also relatively small
用一維模型對折疊式諧振腔徑向速調管振蕩器進行了理論研究,分析了結構器件參數對束波相互作用的影響。Radial oscillation frequency
徑向振蕩頻率The results show that the radius of the slow - wave structure can be much smaller in the coaxial bwo case than in the non - coaxial bwo case
結果表明:採用同軸慢波結構實現l波段返波振蕩器的微波輸出,可以大大減小微波器件的徑向尺寸。Radial transit time oscillator ( rtto ) is a promising novel high power microwave source based on the radial transit - time effect. it can operate under the condition of low impedance and without external guiding magnetic fields
徑向渡越時間振蕩器( radialtransittimeoscillator ,簡稱rtto )是一種前景光明的基於徑向渡越時間效應的新型高功率微波源,能在低阻抗、無外加磁場條件下工作。It is shown that olr spread eastward more clearly in the eastern hemisphere, and the x is persistently spread eastward in both hemisphere ; the interannual variability of the spread of mjo is evident, with the intensity weakening during el nino events and sometimes spreading westward in individual years
氣候上,在沿赤道的傳播中, olr東半球較西半球明顯, x東、西半球無顯著差別;兩種要素季內振蕩沿向東南路徑的傳播較向東北路徑的傳播特徵明顯。異常表現為季內振蕩強度在elnin 。分享友人