高空磁場 的英文怎麼說
中文拼音 [gāokōngcíchǎng]
高空磁場
英文
high-altitude magnetic field- 高 : Ⅰ形容詞1 (從下向上距離大; 離地面遠) tall; high 2 (在一般標準或平均程度之上; 等級在上的) above...
- 空 : 空Ⅰ形容詞(不包含什麼; 裏面沒有東西或沒有內容; 不切實際的) empty; hollow; void Ⅱ名詞1 (天空) s...
- 磁 : 名詞1. [物理學] (磁性; 能吸引鐵、鎳等的性質) magnetism 2. (瓷) porcelain; china
- 場 : 場Ⅰ名詞1 (平坦的空地 多用來翻曬糧食 碾軋穀物) a level open space; threshing ground 2 [方言] (...
- 高空 : high altitude; upper air; welkin高空病 airsickness; altitude sickness; aeroembolism; hypobaropath...
- 磁場 : [物理學] (傳遞運動電荷或電流之間相互作用的物理場) magnetic field
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It detailed analyzes the characteristics of symmetric semi - space, layered telluric medium of transient electromagnetic methods, deduces apparent resistivity ( ps ) formulae of earlier, later and whole stage channels, it also analyzes and deduces the tem response effect of local conductive body in high resistance medium and its apparent resistivity formula, inquires into the causing reason, distinguishing method and the way of eliminating or reducing its effect of tem additional effects
第二章瞬變電磁法的理論基礎,較詳細地分析了均勻半空間、層狀大地瞬變電磁場的特徵,推導了早期、晚期及全期道視電阻率s公式;以及高阻圍巖中局部導電體的瞬變電磁響應和相應的s公式推導。During ion source operating, alternating axial magnetic field and azimuthal electric field in discharge tube ionize hydrogen gas purified by hot palladium pipe, and form plasma, hi fifties year, research reports studied on rf ion source are numerous however most of them are concerned about application, and research reports relevant to discharge theory or experiment model are unfrequent
離子源工作時,放電空間交變的軸向磁場和渦漩電場激發放電管中經鈀管純化后通入的氫氣電離,形成等離子體。 50多年來,關于高頻離子源的研究報告很多,但是,這些研究主要都集中在應用研究方面,有關高頻無極環形放電離子源的理論與實驗模型研究不是很多。Abstract : based on 1 50 000 high - precision aeromagnetic data of 1996 and consulting other geophysical and geological data, this paper has analysed the framework of basement structure and fault structure and, in particular, probed into the relationships of aeromagnetic field characteristics, basement structure and fault structure to the distribution of underground thermal water. on such a basis, the paper also makes a preliminary analysis of the prospects of underground water in this area
文摘:以1996年1 5萬高精度航空磁測資料為基礎,參考其它地球物理及地質資料,對山東黃河口地區基底構造、斷裂構造格架進行了分析,尤其是探討了航磁場特徵、基底構造、斷裂構造與地下熱水分佈的關系,在此基礎上對本區的地熱水遠景進行了初步的分析。2 miniaturized vacuum arc quenching chamber which is with cucr25 contact material, cup shape and longitudinal magnetic field contact structure, intensive interrupting ability is used. vacuum arc quenching chamber is laid in a sealed insulating cylinder, which significantly improve the ability of enduring environment and phase - phase insulation character
2 、設計了採用cucr25觸頭材料、杯狀縱磁場觸頭結構、開斷能力很強的小型化真空滅弧室;真空滅弧室布置在封閉的絕緣筒內,提高了環境耐受能力,同時使相間絕緣性能顯著提高。The axial magnetic field distribution on center surface of contact gap and contact piece are calculated when the current is at peak. it can be found that the intensity of axial magnetic field and radial magnetic field uniformity are strengthened after the iron core is put into, this helps to improve the stability of the vacuum arc
計算了電流峰值時觸頭間隙中心平面和觸頭片上的縱向磁場分佈,可以看出加入鐵芯后縱向磁場強度和徑向磁場均勻性增強,這有利於提高真空電弧的穩定性。Distribution of electromagnet field in the space of h - type rf ion source is worked out derivation from maxwell equations, and three - dimensional vector graphs of e and b in the space of rf ion source are calculated and plotted by mafia software
並採用mafia軟體進行了三維實體建模,計算了高頻離子源放電擊穿前和穩定工作后的電磁場分佈,得到了高頻離子源放電空間電磁場分佈的直觀圖像。Secondly, the math model of the high - speed pm generator with a shielding is deduced. the method of how to analyze the electromagnetic field of the generator is introduced. and with the help of a kind of fem software, the parameters of a model machine are calculated and simulated, including the electromagnetic field, no - load voltage, single - side magnetic force, loaded torque and axial force
其次,對轉子帶防護罩的高速永磁發電機數學模型進行了推導,介紹了利用有限元法對電機磁場進行分析的方法,並運用有限元軟體對一臺樣機的參數進行了模擬,包括電機磁場分析、空載電壓波形、單邊磁拉力、負載轉矩以及軸向力等方面的內容。As compared with conventional electromagnetic motor, the ultrasonic motor possesses the following features : compactness in size, high - torque at a low - speed range, fast response, insensitive to magnetic fields, high holding torque when power is off and so on
與傳統電機相比,它具有結構緊湊、低速高轉矩、響應快、不受磁場影響、斷電自鎖等優點,因而它適合應用於機器人、精確定位裝置、微型機械、航空航天器等方面。Thus, at zero magnetic field the metal disk acts as a short circuit ( very low resistance ), and in a strong enough field it is equivalent to an empty space ? an open circuit ( very high resistance )
因此,沒有磁場時金屬圓盤會造成短路(電阻很低) ,磁場夠強時它就像空無一物的空間,成為開路(電阻很高) 。The work part of the micro - ppt is less than 200g, and less than 5mm in diameter. high isp and high efficiency are acquired because of the efficient coaxial discharge characteristic and higher discharge voltage than the standard ppt
該推進器的基本原理是通過真空中對工質的高壓放電使工質電離為等離子體,等離子體在電磁場的作用下加速排出形成推力。The pollution of extremely low frequency field in great power plants and distribution of electric field in transmission line with different voltage grade
電力設備及高壓架空線路周圍工頻磁場的探討The x - ray diffraction, scanning electronic microscope and the squid were used to characterize the properties of the mgb2 core in mgb2 / fe tapes and wires. the effect of the proportion of mg, b and sic as well as the sintering parameters on the phase formation, microstructure and the critical current densities of mgb2 / fe tapes and wires was discussed in details. the results showed that the high purity of mgb2 core could be synthesized by both the traditional vacuum sintering and the sparking plasma sintering and the vacuum sintering environment restrained the oxidation of mg effectively
相對于傳統真空燒結, sps燒結方式成相速度快、樣品晶粒細小均勻、 mgb2超導芯緻密性好、晶間連接優良,因而sps燒結樣品的臨界電流密度明顯高於傳統真空燒結樣品,其中未摻雜的帶材樣品經過sps800 , 15分鐘燒結后,自場下的臨界電流密度jc值在10k時達到8 . 64 105a / cm2 ,而且隨著測量溫度和外加磁場的增加, sps燒結樣品的臨界電流密度下降率比傳統真空燒結樣品緩慢,在20k ,自場時為5 . 97 105a / cm2 , 20k , 3t時,臨界電流密度值仍大於104a / cm2 。This system makes a breakthrough of traditional incremental motion control theories. it breaks the strict ambit between continuum and discrete, speed and position, rotation and step, the space vectors of stator magnetic field and rotor magnetic field are selected as the main control objects, incremental motion control and motion control are combined organically to make incremental motion control develop to large capability, high efficiency, high precision
這其中的交流步進控制理論打破了傳統的增量運動控制思想,打破了連續與離散,速度與位置,旋轉和步進的嚴格界限,以定、轉子磁場空間矢量為主要控制目標,將增量控制與運動控制有機的結合起來,使增量控制向大容量、高效率、高精度方向發展。In order to enhance the measure precision and expand the using area of the existing oil pipeline mfl ( magnetic flux leakage ) detecting system to natural gas pipeline testing, detailed information of flux obtained by decreasing sampling time and space interval is needed
為了提高現有輸油管道漏磁檢測系統的檢測精度以及擴展系統的適用范圍使其適用於天然氣輸送管道的檢測,需要通過減小采樣時間間隔和空間間隔的方法以獲得更加完備的漏磁場信息。By the test of three - dimensional distribution, form character, rotating frequency and magnetic field intensity of rotating magnetic field, it showed that the magnetic field produced is a highly rotating magnetic field and mainly distribute on welding arc region, rotating frequency and magnetic intensity can be regulated through excitation power source
通過對產生磁場的空間分佈,形態特徵,以及旋轉頻率和場強大小的測試證明該磁場是一個高速旋轉的磁場空間,而且磁場主要集中分佈在焊接電弧區域內,磁場的旋轉頻率和場強大小都可以通過勵磁電源進行良好調節。The science objectives involve high resolution imaging of the surface, studies of the topography and gravity, the role of water and dust on the surface and in the atmosphere of mars, the weather and climate of mars, the composition of the surface and atmosphere, and the existence and evolution of the martian magnetic field
此次發射的目標包括拍攝高解析度的火星表面圖片、研究火星地形和重力、水的狀態、地表和空氣中的塵埃、火星的氣候和天氣、土地和空氣的構成和火星磁場的存在和演變。The results showed that the microstructure of as - deposited tbdyfe ii 1ms were amorphous and the crystal of tbfe2 were found in films after annealing at 500. annealing films in vaccum could improve the saturation magnetization ms and the susceptibility, decrease the coercivity and the saturaion field, and make the direction of the magnetic moments parallel to the film plane
結果表明,制備態薄膜為非晶態結構,經過500真空退火熱處理后,薄膜出現了tbfe _ 2的結晶物,薄膜的矯頑力和外場的飽和磁場大大降低,飽和磁化強度增強,初始磁化率提高,易磁化軸轉向膜面。This paper expatiated that the mathematics models of ac motor is higher order, non - linear and closed coupling, multivariable input - output system. and introduces the principle and the algorithm of sine pulse width modulation ( spwm ), opened - loop space voltage pulse width modulation control ( svpwm ) and field oriented control ( foc ). finally, realized the control strategies of variable - frequency speed regulating using assembly and c language
文中闡述了交流異步電機的數學模型是高階、非線性、強耦合的多變量輸入輸出系統,介紹了交流電機的正弦脈寬調制、開環電壓空間矢量的u / f控制和磁場定向控制的原理及控制演算法,並利用dsp構成控制系統,通過匯編語言和16位定點c語言混合編程的方法實現了上述的變頻調速控制策略。After vaccum annealling in magnetic fileld, the films were studied by grazing incidence x - ray diffraction analysis and scan of x - ray diffraction. the results showed that fe atoms could be separated from cu matrix, which results in the increasing of the interface scattering, and enhance gmr effect
通過對真空磁場熱處理前後的薄膜的gixa分析及xrd掃描發現,真空磁場熱處理能夠使沉積態薄膜中的fe原子從cu的晶格中定向析出,這使得熱處理后薄膜內部的界面散射增多,能夠有效的提高薄膜的巨磁阻值。The results of gmr testing indicate that the gmr effect is much little in the assputtered films, but they will be enhanced after vaccum annealling in magnetic fileld. and we also found that the thickness of the films and the
磁阻性能測試結果表明,沉積態薄膜的磁阻性能微弱甚至沒有,經過真空磁場熱處理后的薄膜磁阻性能明顯得到提高,並且薄膜厚度與退火溫度均對薄膜的巨磁阻性能有重要影響。分享友人