共振腔的 的英文怎麼說
中文拼音 [gòngzhènqiāngde]
共振腔的
英文
q value of cavity-
The cavity is usually evacuated.
共振腔通常是抽空的。It is a new heat transfer enhancement method to apply helmholtz resonance chamber to convective heat transfer in a pipe
將helmholtz共振腔應用於換熱器來增強換熱是一種新的強化換熱方法。This dissertation is devoted to the investigation of the influence of self - excited oscillation jet on heat transfer enhancement
本課題將helmholtz共振腔所產生的自激振蕩脈沖射流引入換熱器以實現強化換熱。The key ingredient to making amplified radiation, townes realized in the early 1950s, was a resonant cavity
湯斯在1950年代早期理解到,產生輻射放大的關鍵在於共振腔。The results of orientation response in the resonant cavity show that it is best to measure alanine film dosimeter in horizontal orientation paralleling to the magnetic field, which can obtain the highest amplitude and the smallest uncertainty
通過劑量計在共振腔內的方向效應實驗,發現平行於磁力線方向測量最佳,可得到最大的信號強度和最小的測量不確定度。In 3. 1 the reflection characteristic of f - p cavity is presented. in 3. 2 the optical - electronic modulation is introduced and the technique of how to make a resonant eom is discussed also
3 . 1從理論上分析了f - p諧振腔的特點, 3 . 2討論了電光相位調制的特點,介紹了共振型電光相位調制器的製作。The influence of various waterpower and configuration parameters on heat transfer is analysed and the rules of convective heat transfer coefficient and the ratio of heat transfer enhancement with mass flux are obtained. at the same time, we gain important results as below : as for resonance chamber with certain configuration, self - oscillation can be generated under suitable configuration and waterpower parameters. for the same configuration resonance chamber, the intensity of the self - oscillation is changed by the waterpower parameters
當流量及壓差降低至一定程度時,共振腔還可能削弱換熱;加熱功率的提高會增加流體(水)的溫度,流體的粘度會隨著降低,這會減少對流體脈動的阻礙,使脈動衰減得更慢,而脈動幅度的增加會增強換熱,故加熱功率對有脈動的對流換熱是有影響的;自振腔產生的流體脈動頻率是自振腔固有頻率或其整數倍,流體脈動頻率過高或過低都不利於對流換熱,存在一有利於強化換熱的頻率范圍。The heat transfer enhancement is different under different oscillator. there is the optimum oscillation intensity under which the heat transfer coefficient will be increased by about 30 percent. the change of outlet structure size of a resonance chamber shows little effect on the strength of heat transfer : the pressure of the optional heat transfer coefficient always is between 0. 4mpa and 0. 6mpa, and the optional heat transfer coefficient is enhanced by 30 percent or so
不同的振蕩強度,強化換熱的效果也不同,存在一個最佳強度,此時的強化換熱效果最好,可以將表面換熱系數提高30 %左右;對于同一共振腔,配合以不同的出口結構尺寸,對于換熱效果的強化的影響變化不大:出現最佳強化效果時的壓力基本都在0 . 4 - 0 . 6 ,最佳的強化效果也都是將表面換熱系數提高30 %左右。Secondly, the helmholtz oscillator was designed. based on the flow network theory, the expression of intrinsic frequency was deduced. the main parameter of helmholtz oscillator was calculated
對于同一結構的helmholtz共振腔,水力參數不同,所產生的自激振蕩脈沖射流的強弱也不相同。Finally, the experiment was performed in order to exam the effect. the pulsating liquid flows through a single pipe heated electrically. the heat transfer coefficients were measured under different conditions
將helmholtz共振腔產生的自激振蕩脈沖射流引入換熱器后,當自激振蕩的強度達到一定程度后,可以強化換熱。The gas sources that we used are trimethylgallium ( tmg ) and 99. 9999 % purity nitrogen, which were fed into reaction chamber and resonance cavity respectively. the highly dense ecr plasma up to 1011cm - 3 was created in the resonance cavity and introduced to the next reaction chamber by the force of divergent magnetic field. consequently, gan thin film was grew on the substrate sapphire ( 0001 ) placed in the downstream
實驗採用有機金屬三甲基鎵氣源( tmg )和99 . 9999純度的氮氣,在ecr - pecvd150裝置共振腔內電子迴旋共振吸收微波能量產生的高密度ecr等離子體在磁場梯度和等離子體密度梯度的作用下向下級反應室擴散,在放置於下游區樣品臺上的- al _ 2o _ 3襯底表面附近發生物理化學反應沉積成gan薄膜。In lasers ? invented a few years after the maser ? the cavity is simply the space contained by two mirrors, so that the light bounces back and forth, building up in intensity until a beam emerges from one of the mirrors ( which is partially transmitting )
在邁射出現幾年之後發明出來的雷射,其所用的共振腔,不過就是兩片鏡子所夾的空間,光在裏面可以來回反射使強度逐漸增強,直到光束從其中的一面(可以部份透射的)鏡子穿透射出。Self - oscillation initiated by helmholtz resonance chamber with different configuration under different waterpower parameters is introduced in the paper. the influence on the heat transfer enhancement of the heat exchanger by applying resonance chamber is discussed in detail
本文介紹了不同結構的helmholtz共振腔在不同的水力參數下產生的自激振蕩情況,以及將自激振蕩應用於換熱器上對強化換熱的影響。A new high power microwave source, the axial acceletron is presented in this paper. compared with the radial accelectron, an acceleration region is added after the diode / oscillator and radial acceleration is change to axial acceleration. the bunching and radiation of the electron beam in the device are investigated
最後,我們提出了一種新的高功率微波器件? ?軸向加速管,與徑向加速管比較,有兩個不同:在二極體/共振腔后加一個加速段,並將徑向加速改為軸向加速。By changing the composition of n and in, we can adjust the band gap of galnnas to about 1. 3 m and also make it lattice matched to gaas. it makes the resonant cavity enhanced ( rce ) infrared photo detector based on gaas become possible
通過調節n和in的組分,可以使gainnas的帶隙在1 . 3 m左右,同時使得它與gaas晶格匹配,這為實現gaas基的共振腔增強型( rce )紅外探測器和激光器提供可能。In order to carry out the acoustic and aerodynamics performances tests, seven resonators are designed and made, and a specialized engine intake silencer and exhaust silencers test bench was designed. the tests and analysis are performed as well. on the basis of the intake noise spectrum of sc7080a, a three - parallel - connected resonant silencer is designed, and that has efficiently controlled the acceleration noise of sc7080a
在此基礎上設計並加工了兩類七個共振型進氣消聲器,研製了發動機進排氣消聲器性能測試實驗臺,開發了發動機進排氣消聲器聲學性能測試軟體,並在該實驗臺上測試了所設計的進氣消聲器靜態工況下的傳聲損失,從實驗的角度研究了共振腔的尺寸、形狀對其共振頻率的影響及其趨勢。The research and the application shows that the resonator geometrical parameter has effect on its resonant frequency, and the one dimension ( 1 - d ) model can predict the frequency accurately. therefore, if an engine intake noise spectrum is known, one can design a helmholtz resonant silencer to control the intake noise
一維軸向傳播理論能夠準確預測共振腔的共振頻率,從而為正確設計出針對發動機進氣噪聲頻率特性的helmholtz共振型進氣消聲器提供依據,達到有效控制發動機進氣噪聲的目的。The application of the two - stage and parallel connection structure resonator muffler to a high capacity air compressor
雙級並聯共振腔消聲器在大型空壓機上的應用Quality factor of resonator
共振腔的品質因數Q value of cavity
共振腔的分享友人