cavity principle 中文意思是什麼

cavity principle 解釋
空腔原理
  • cavity : n. 1. 【解剖學】穴，窩，盂，腔，空腔；【醫學】（空）洞。2. 【物理學】模槽；氣蝕區；空腔諧振器；【原子能】（反應堆中的）小室，暗盒。
  • principle : n. 1. 原理，原則。2. 主義；政策；〈常 pl. 〉道義；節操。3. 本質，本體，根源；本原，源泉。4. 本性，本能；天然的性能；天賦的才能；動因，素因。5. 【化學】素，要素；精。
  1. The histological research of male bai zhi showed that it had severe lignified while the tissues secereting the volatile oil and the coumarin ( secretory cavity ) were very little. the results of extractive test also showed that the principle constituent of male bai zhi was lower than the common evidently

    公白芷的組織研究表明其木化程度高，而與揮發油和香豆素類成分密切相關的組織（分泌腔）又較少，白芷浸出物含量測定的結果也表明，公白芷中有效成分的含量明顯低於一般白芷。
  2. Simulated experiments effects of intrathoracic pressure change on hemodynamics three models that simulated the anatomic arrangement of the venous return systems and chest cavity were established to investigate the hydromechanic principle of the different influence of the itpc on the ventricular fillings. effects of intrathoracic pressure change on the motion of interventricular septum ( ivs ) acuson ' s sequoia 512 ultrasonographic system was used in this study to record the m - mode and two - dimensional cineloop images of the simulated interventricular septum movement with different intrathoracic pressure changes

    指標觀測觀察並記錄外周靜脈壓和模擬胸腔壓力分別變化及同時變化時，模擬右心室的容積變化；觀察並記錄模擬胸腔壓力變化時，模擬肺血管床和左心室內壓力的變化；用sequoia512超聲心動圖儀觀察胸腔壓力變化對模擬心臟室間隔運動的影響。
  3. Introduced working state real time monitoring and testing, fault diagnosis system and its key instrument, including the working principle of torsion, axial force, rotary speed as a whole sensor, the main parameter index of oil well using progressing cavity pump

    介紹了螺桿泵採油系統工況實時監測與故障診斷系統及其核心儀器：扭矩、軸向力、轉速一體化傳感器工作原理、主要參數指標。
  4. Abstract : introduced working state real time monitoring and testing, fault diagnosis system and its key instrument, including the working principle of torsion, axial force, rotary speed as a whole sensor, the main parameter index of oil well using progressing cavity pump

    文摘:介紹了螺桿泵採油系統工況實時監測與故障診斷系統及其核心儀器：扭矩、軸向力、轉速一體化傳感器工作原理、主要參數指標。
  5. The basic principle, main properties, typical parameters, technical characteristics and general situation of klystron are introduced. the electron beam prebunching in the modulated cavity and shift tube of relativistic klystron amplifer ( rka ) is studied analytically, a self - consistent equation of radiation generated by the prebunched electron beam in the radiation cavity is derived using the field method of particle ? wave interaction instead of the electrical circuit method, and in terms of it, the gain in the linear regime calculated, a field analysis method is proposed. the theory analysis shows that the characteristic parameters, such as resonance frequency, real part of gap - impedance, external quality fadtor in all kinds of klystron output circuits including single - beam, multi - beam, single - gap, multi - gap, single - beammulti - gap, multi - beam multi - gap klystron output circuit, can be calculated by the field analysis method

    本文系統的介紹了速調管的工作原理、主要特點、發展概況、主要性能指標和技術特點，解析的研究了電子束在相對論速調管放大器的調制腔和漂移管中的預群聚;用粒子波互作用的場方法導出了在輻射腔中預群聚電子束產生輻射的自洽方程，同時對線性區的增益進行了計算。理論分析表明，場分析法可用於計算單注單間隙、多注多間隙、單注多間隙和多注多間隙速調管輸出迴路的諧振頻率、間隙阻抗實部和外觀品質因數等特性參數。
  6. The author first summarizes the basic principle of the fiber laser and several methods to generate ultra - short pulses in the fiber laser, then discusses the q - switched fiber laser and mode - locked fiber laser theoretically and experimentally in detail, meanwhile introduces the research on ultra - short pulses semiconductor laser with a fiber grating external cavity

    本文綜述了光纖激光器的基本原理和幾種在光纖激光器中產生短脈沖的方法，重點在理論和實驗兩方面研究了光纖調q激光器和鎖模光纖激光器。同時對光纖光柵外腔半導體短脈沖激光器的特性進行了實驗研究。
  7. The principle advantages of vcsels over conventional edge - emitting lasers lie in ultralow threshold current, small far - field divergent angle, high modulation frequency, potential for wafer level testing and the ease for single longitudinal mode operation and two - dimension integration. as a result they show considerable promise for applications such as optical fiber communication, parallel optical interconnects, optical information processing and neural networks, etc. a direct coupling theoretical model in quasi - three - dimension for the gain - wave guide vertical - cavity surface - emitting lasers has been created in this paper

    它與傳統的邊發射激光器相比具有更優越的特性，例如，具有極低的閾值、較小的遠場發散角、調制頻率高、易實現單縱模工作和二維集成，無須解理封裝即可進行在片測試等，所以，它被廣泛應用於光纖通訊、并行光互聯、光信息處理、光神經網路等領域。
  8. The trends of dpssl are pointed out, the wide application fields, as well as the bright market future of high power dpssl are also summarized. in the chapter 2, all kinds of solid - state laser gain materials are introduced in detail. in the chapter 3, the theory on the mode - matching of the pump beam and the cavity mode is analyzed in detail based on the basic theory and work principle of ld - pumped all - solid - state laser

    本論文第一章從二極體泵浦固體激光器的優勢出發，介紹了二極體泵浦固體激光器的發展，指出了dpssl的發展方向，概括介紹了大功率dpssl的諸多應用領域和廣闊的市場前景；第二章對固體激光增益材料作了詳細的介紹；第三章基於ld泵浦固體激光器的基本理論和工作原理，從理論上詳細分析了ld端面泵浦激光器中泵浦光與腔模的匹配問題。
  9. With medical plastic making its principle part, the nose breath filter is a health defense product developed most recently, which can be used only if it is gently put into the nasal cavity

    鼻用呼吸過濾器是一種最新研製的衛生防護用品，其主體採用醫用塑膠製成，只需將本產品輕輕置入鼻腔即可使用，具有高效過濾凈化空氣的功能，可有效的保護人的呼吸系統，對呼吸氣流的溫度和濕度有良好的調節作用。
  10. Based on the rate - equation theory of four - level system, the expressions of threshold pump power, output power and slope efficiency are given. the influence of space distribution of pump light ( the position of focusing point, dimension of pumping light and divergence angle ) to the output characteristics are also discussed. then, by investigating the effects of thermal effect of laser crystal on the size of laser cavity mode, we obtain the mode - matching principle of high power laser diode end - pumped solid - state lasers

    其中，在泵浦光的空間分佈變量中我們分別考慮了泵浦光聚焦后的腰斑大小、聚焦腰斑在增益介質中的位置以及泵浦光在介質中發散角的影響；然後我們研究了在高泵浦功率下激光晶體因吸收泵浦光而產生的熱效應所導致的熱透鏡效應以及熱致衍射損耗，通過分析它們對振蕩激光腔模尺寸的影響，得到了高功率半導體激光二極體端面泵浦固體激光器模式匹配的要求，為高功率連續單頻nd ： yvo _ 4激光器的優化設計提供了理論依據。
  11. According to propagation equation of gaussian beam and matrix of misadjust resonator, as well as principle of cavity ring - down method and data processing of fitting, a physical model of reflectivity measuring is set up for misadjustment of cavity length or angle of titled cavity mirrors

    根據光束傳輸規律和失調腔矩陣方法，以及光腔衰蕩法測量原理和曲線擬合方法，建立了腔長、腔鏡角度失調下光腔衰蕩法的反射率測量模型。
  12. First, some principle that should be considered in building a laser cavity was discussed based on the rate equation of four - level laser model. then, the thermal lens effect of nd : yvo4 crystal was analyzed and estimated theoretically. the laser cavity was designed by considering the thermal lens effect and the optimal transmission was estimated

    首先在理論上通過四能級激光器速率方程，討論了激光器設計上需要注意的一些原則，然後分析了nd ： yvo _ 4晶體的熱透鏡效應，理論上估算了其熱焦距的大小，並且在腔型設計中給予了考慮。
  13. The main parts of this thesis are as following : part 1 : it is briefly introduced the history and types of the f - p cavities, including the basic principle and parameters of the f - p cavity. moreover, the analysis is showed about the relations between the cavity finesse, ringdown time, quality factor and the losses

    本文的主要內容有如下幾部分：第一部分：介紹了腔的歷史背景及其類型，以及一般f - p腔的原理和基本參數，分析了腔的精細度、光子壽命（衰蕩時間） 、品質因數等與腔損耗間的關系。
  14. Part 2 : the background and principle of measuring the losses in the high - finesse cavity with the technique of ringdown are showed and the high - finesse cavity composed of super mirrors, with cavity length of 17. 8mm is set up. by cavity - ringdown experiment, we can get the finesse about 2 105 and total losses of the high - finesse cavity about 30ppm

    實驗上建起一套由「超鏡」構成腔長為17 . 8mm的高精細度腔，並測得光在腔內的衰蕩信號，推算出腔的精細度約為20萬和損耗約為30ppm 。
  15. The cavity mirror can also be designed according to an objective function. the second part ( the 5th chapter ) is to introduce the concept of low diffraction beam and to illustrate the principle and method how to realize it. a low diffraction beam is obtained by reconstructing the existing optical resonator of a co2 laser using a special diffraction phase plate

    第二部分（第五章）提出了低衍射光束的概念，簡述了實現低衍射光束原理和方法；通過腔內放置衍射元件的方法實現了低衍射光束的輸出；並對這種光束進行了理論和實驗研究，理論模型結果和實驗結果很好地吻合。
  16. The principle of white - light interference for strain measurement is analyzed in theory, the optical fiber strain sensor system based on white - light interferometric principle of fabry - perot cavity and spectrum instrument is designed

    本文對白光干涉應變測量的工作原理進行了理論分析，基於fabry - perot腔白光干涉原理和光譜儀原理設計了光纖傳感器的調制解調系統。
  17. This problem is solved by using vertical cavity surface emitting laser ( vcsel ) feedback as the snom detection principle

    這個問題可以用垂直腔表面發射激光器（ vcsel ）作為snom的反饋部分來解決。
  18. The analyzing model was established, and a novel inner - cladding structure of dcf with higher performance was designed. integrated by the absorption and emission characteristics of rare - earth - ions in dcf and the ld ' s pumping principle with its relative references, the - academic model of high power dcf laser with f - p cavity was based, by using methods of numerical analysis, the high power dcf laser was simulation with good results and consistency

    結合稀土離子的吸收及發射特性及二極體泵浦固體激光原理，應用相關的理論建立了高功率f - p腔型光纖激光器的理論分析模型，利用matlab 、 mathcad ， origin等軟體，採用數值計算及分析方法，結合具體參量數值對實驗進行了模擬分析，並研究了不同特性參量對激光器性能的影響。
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