振蕩器穩頻 的英文怎麼說

中文拼音 [zhèndàngqìwěnbīn]
振蕩器穩頻 英文
oscillator stabilization
  • 振 : 動詞1. （搖動; 揮動） shake; flap; wield 2. （奮起） brace up; rise with force and spirit
  • 蕩 : Ⅰ動詞1 （搖動; 擺動） swing; sway; wave 2 （無事走來走去; 閑逛） loaf; wander; roam; loiter; go a...
  • 器 : 名詞1. （器具） implement; utensil; ware 2. （器官） organ 3. （度量; 才能） capacity; talent 4. （姓氏） a surname
  • 穩 : 形容詞1 （穩定; 穩當） steady; stable; firm 2 （穩重） steady; staid; sedate 3 （穩妥） sure; rel...
  • 頻 : Ⅰ形容詞（次數多） frequent Ⅱ副詞（屢次） frequently; repeatedly Ⅲ名詞1 [物理學] （物體每秒鐘振動...
  1. Motion controller composed of general chip series is developed and quadruple differential circuit utilizing dual monostable multivibrators with schmitt trigger inputs and dual 4 _ line to l _ line data selectors or multiplexers is put forward

    本論文研製了一種用常規晶元系列組成的運動控制器，提出了採用單穩態多諧振蕩器和數據選擇器的四倍頻辨向電路。
  2. 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 。
  3. The equivalent circuits is synthesized for the case where the te10 mode is the only propagating waveguide mode, which based on basic waveguide - circuits equivalent circuits such as cross - coupled coaxial line rectangular waveguide junctions, rectangular waveguide transmission lines etc. then we make the computation program for the equivalent circuits to analyse and optimize the vco circuit, and get the each parameter ' s influences on vco output signal

    本文從波導電路的等效電路出發，綜合出3mmvco基波工作時只考慮te10模的等效電路，依據此編製程序完成了振蕩器電路的分析優化，得出了電路中各個參數對振蕩器頻率溫度穩定度性能的影響。
  4. This instrument keeps constant temperature by circling air both. it use computer to control temperature and oscillation frequency, led digital display, it has stable performance, and its quality is reliable, its appearance is beautiful and digniful. it can be operated conveniently. it is the suitable instrument uhcih is used on researching and production by the trades of bioengineering. medicine. hygienist and so on

    該振蕩培養箱是利用旋轉空氣浴進行恆溫的振蕩器，溫度和振蕩頻率均採用電腦控制，用led數碼顯示.該振蕩器性能穩定，質量可靠，造型美觀大方，操作方便，實為生物工程、醫藥、衛生等行業科研和生產中使用的理想儀器。
  5. Experimental results validated that this high performance arc igniting device developed provides with fast response and stable high frequency output voltage

    試驗表明該開關式高頻振蕩引弧器控制系統具有頻響快、輸出高頻高壓穩定的特點，是一種性能較好的開關式高頻振蕩引弧器。
  6. Article has introduced partition and the definition of oscillator frequency stability, and analyzed emphatically to cause the vibration factor with instability frequency, this paper elaborated the major measure and steady method that how to raise frequency stability

    摘要介紹了振蕩器頻率穩定度的定義與劃分，著重分析了導致振蕩頻率不穩定的因素，詳細地闡述了提高頻率穩定度的主要措施和穩定方法。
  7. By means of controlling accurately temperature of f - p cavity used in the frequency - stabilizing system of laser, the frequency stability of laser is significantly improved. especially the long - term unidirectional frequency shift is essentially overcome

    從實驗結果，我們得出將作為頻率標準的f ? p腔精密控溫與對該腔不控溫對激光器振蕩頻率進行鎖定的結果相比較，清楚看到短期穩定性有一定提高，重要是對作為穩頻標準f ? p腔精密控溫，消除了由於溫度變化引起的頻率慢漂移。
  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. Firstly, the oscillator theory was researched as the base of the design of oscillator - type aia in this paper. the derivation of oscillation condition and stability condition were given ; at the same time, the cavity modeling theory of microstrip antenna was studied, which gave the relation between the size of microstrip antenna and the resonate frequency and that between the size and impedance of microstrip antenna

    首先，針對本文所討論的振蕩型有源集成天線，作為理論基礎，進行了振蕩器理論的研究，推導出有源集成天線的振蕩條件和穩定條件；同時利用空腔模理論，給出了天線尺寸與諧振頻率和輸入阻抗的關系。
  10. In this circuit, reference current sources are used to charge and discharge capacitors. this oscillator ’ s output is very ideal through control circuit under 5. 7v reference voltage, and oscillator ’ s frequency and duty - cycle could be adjusted if reference current source or capacitors in the circuit was adjusted. and the changes of temperature and voltage affect stabilize of the frequency little

    此電路利用系統內部基準源產生的電流信號來對電容進行充放電，然後經過控制電路作用后，產生的輸出振蕩波形的上升時間和下降時間非常小，更接近理想矩形波形;通過調節基準源電流信號或者電容值大小，可調節振蕩波形的頻率和占空比，同時溫度和電壓的變化對振蕩器輸出波形頻率穩定度的影響很小。
  11. In the design of the spll, srd takes the input of a crystal oscillator and generate very sharp and narrow pulses

    在振蕩器之後，本文加了一個緩沖放大器，它起到放大輸出功率和改善頻率穩定度的作用。
  12. The main purpose of this thesis is to improve the 3mm vcos frequency stability that work in harmonic to obtain the more strict demands of new electronic equipments

    本文主要任務是改善原有3mm壓控諧波振蕩器的頻率溫度穩定度，使其滿足系統對3mm振蕩源越來越高的要求。
  13. The common frequency synthesizers may not meet the demand on frequency stability and accuracy. and some of them are just desirable at a single frequency, which only can be varied in narrower spectrum

    於是出現了高穩定的晶體振蕩器作為標準信號發生器，但他們的頻率往往是單一的，只能在很小的范圍微調。
  14. The equivalent cavity model is used to deduce the threshold condition of the ecld, and the expression of the threshold carrier density n ( v ) when ecld is tuned to oscillate at different frequencies has been obtained. using the expression of n ( v ) and the carrier dependent refractive index, the simple basic equation describing the bistable characteristics has been derived after choosing an appropriate reference frequency nf

    通過建立等效腔模型來推導外腔半導體激光器的閾值條件，得到ecld在不同頻率v振蕩所需的閾值載流子密度n （ v ）表達式，利用該表達式及相關的折射率表達式，在選擇合適的參考載流子密度n _ f后，導出了一個描述雙穩所需的基本方程。
  15. With the quick development of electronic technology, high - stability crystal oscillator is being used more and more widely. especially, temperature - compensated crystal oscillator ( tcxo ) is commonly used in electronic equipments such as communication, navigation, radar, measure instruments etc.

    隨著電子技術的飛速發展，頻率高度穩定的晶體振蕩器得到了廣泛的應用，特別是溫度補償晶體振蕩器（ tcxo ）更是廣泛應用於通信、導航、雷達、測量儀表等電子設備中。
  16. The main ideas of the thesis and the contributions to the resonant dc - link area are also listed in this chapter. a novel control strategy for the two - amplitude actively clamped resonant dc - link is proposed in chapter ii. it neglects the bus short circuit time adjuster and stabilizes the clamping voltage by a pi regulator so that the obtained link frequency is improved and the link losses are greatly reduced

    第二章針對雙幅控制技術在單相橋式電壓源逆變器中的應用為範例進行研究，提出了直流母線無短路控制和通過pi調節環穩定箝位電壓的雙幅諧振控制策略，進一步提高了母線振蕩頻率，減少了直流環節損耗。
  17. First, an analysis for the design of the impulse phase lock oscillate, which includes impulse phase detector the dielectric resonant oscillate etc. secondly, presents an analysis for the design of wide band balanced low noise amplifier. the last two part simplify the theory and the electrical characteristics of the sub harmonic mixer, and the mmvco

    第一部分著重介紹了脈沖鎖相源的工作原理（主要包括取樣鑒相器和介質穩頻的壓控振蕩器） ，並介紹了研製結果的性能指標;第二部分介紹了平衡式寬帶低噪聲放大器的基本理論
  18. There is a pll ( phase locked loops ) in system to get a high - stability low - noise high - frequency signal

    固定頻率振蕩器通常採用鎖相環技術來獲得高穩定度、低相位噪聲的高頻輸出信號。
  19. The frequency of the pulse is the same as that of the crystal oscillator. the pulses sampled the output of the vco and generate the error signal. the error signal is amplified,

    誤差電壓經放大後送入環路濾波器進行濾波和再放大，然後去改變變容管偏置電壓，控制振蕩器輸出頻率，達到穩頻的目的。
  20. The basic principle of feedback crystal oscillator is analyzed. the basic concept of frequency stability is also introduced, following by the usual expression of phase noise in frequency domain and phase jitter in time domain. further, we describe the origin of crystal oscillator ' s phase noise and phase jitter, also list a variety of its contributors

    然後從理論上分析了反饋型晶體振蕩器的基本工作原理，並闡述頻率穩定度的概念，給出了在頻域中相位噪聲和時域中相位抖動的表示方法，形成原因以及影響相位抖動的諸多因素。
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