磁傳導電流 的英文怎麼說

中文拼音 [zhuàndǎodiànliú]
磁傳導電流 英文
magnetic conduction current
  • : 名詞1. [物理學] (磁性; 能吸引鐵、鎳等的性質) magnetism 2. (瓷) porcelain; china
  • : 傳名詞1 (解釋經文的著作) commentaries on classics 2 (傳記) biography 3 (敘述歷史故事的作品)...
  • : 動詞1. (引導) lead; guide 2. (傳導) transmit; conduct 3. (開導) instruct; teach; give guidance to
  • : Ⅰ名詞1 (有電荷存在和電荷變化的現象) electricity 2 (電報) telegram; cable Ⅱ動詞1 (觸電) give...
  • : Ⅰ動1 (液體移動; 流動) flow 2 (移動不定) drift; move; wander 3 (流傳; 傳播) spread 4 (向壞...
  • 電流 : current; galvanic current; electric current; electricity; current flow電流保護裝置 current protec...
  1. In this paper, the research progress of ac losses of high temperature superconductors and the existing problems on ac losses investigation are introduced ; the characteristics of the critical current and ac losses of hts tapes, stacked tapes and hts coil, such as electro - magnetic characteristics, the anisotropy, the mechanics characteristics and the effects of insular layer between stacked tapes and the influence of frequency of ac transport current etc, are investigated

    本文在系統介紹高溫超體的交損耗及其研究現狀與存在問題的基礎上,從理論和實驗兩方面,研究了bi系高溫超單根帶材、多根超並聯組合帶材、及超線圈的臨界與交損耗的特性:重點研究了交損耗與臨界特性、機械特性、各向異性特性、及帶間絕緣層與頻率對交損耗的影響等。
  2. According to result, we use the rectangle - shape pipeline instead of circuit - shape pipeline used commonly to measure the flow

    根據分析結果,在量計感部分採用矩形測量管來代替統的圓形測量管產生感應動勢。
  3. Such as : the balance of elastic membrane, the heat conduction of stationary state, the incompressible potential flow, the problem of electrostatic field and magnetostatics field

    例如:彈性膜的平衡問題,穩定狀態的熱問題,不可壓縮勢問題,靜場問題以及靜場問題。
  4. A new standpoint produced from the study is that the guided wave system in the oil well is different from the normal circular wave guide, as the fluid is a conductive medium, and it allows the higher or lower frequency waves to propagate

    通過研究提出了由於井內體為有耗媒質,油井構成的波系統不同於一般的圓波,可以播高頻或低頻波的新觀點。
  5. 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超芯緻密性好、晶間連接優良,因而sps燒結樣品的臨界密度明顯高於統真空燒結樣品,其中未摻雜的帶材樣品經過sps800 , 15分鐘燒結后,自場下的臨界密度jc值在10k時達到8 . 64 105a / cm2 ,而且隨著測量溫度和外加場的增加, sps燒結樣品的臨界密度下降率比統真空燒結樣品緩慢,在20k ,自場時為5 . 97 105a / cm2 , 20k , 3t時,臨界密度值仍大於104a / cm2 。
  6. The electric field, magnetic field, critical frequency, surface current, power transmission and attenuation, as well as te and tm modes in waveguides are discussed

    給出計算等效矩形截面波的te模和tm模、場、臨界頻率、波、功率輸和衰減的公式。
  7. The main research aspects are as follows : the method of ac transport losses measurement in ac applied magnetic field was investigated. upon the analysis of ac loss measurement, a method to measure ac transport losses in ac applied field was proposed by use of double " 8 " shape coils. a programme controlled system was set up to measure ac losses of hts tapes and coils, which can ensure the experiment data needed by theoretical analysis and verification

    主要包括:在實驗方面,探討了交背景場下高溫超帶材的交輸損耗的測量問題,通過對交損耗測量的理論分析,提出了採用雙「 8 」字形勢引線測量交背景場下高溫超帶材交輸損耗的方法;建立了超帶材短樣及線圈交損耗的測量系統;從而為交損耗的研究提供實驗數據與理論檢驗標準。
  8. We have investigated transport properties of electrons in magnetic quantum structures under an applied constant electric field. the transmission coefficient and current density have been calculated for electron tunneling through structures consisting of identical magnetic barriers and magnetic wells and structures consisting of unidentical magnetic barriers and magnetic wells. it is shown that the transmission coefficient of electrons in a wider nonresonance energy region is enhanced under an applied electric field. the resonance is suppressed for electron tunneling through double - barrier magnetic ( dbm ) structures arranged with identical magnetic barriers and magnetic wells. incomplete resonance at zero bias is changed to complete resonance at proper bias for electron tunneling through dbm structures arranged with different magnetic barriers and magnetic wells. the results also indicate that there exist negative conductivity and noticeable size effect in dbm structures

    量子結構中子在外加恆定場下的輸運性質進行了研究.分別計算了子隧穿相同阱和不同阱構成的兩種量子結構的輸概率和密度.計算結果表明,在相當寬廣的非共振子入射能區,外加場下子的輸概率比無場時增加.對于子隧穿相同阱構成的雙壘結構,共振減弱;對于子隧穿不同阱構成的雙壘結構,無場作用時的非完全共振在適當的偏置壓下轉化為完全共振,這時的子可實現理想的共振隧穿.研究同時表明,量子結構中存在著顯著的量子尺寸效應和負微分
  9. As well - known, there is an induced current on the surface when metal material is in the high frequency electromagnetic field, since tending to skin heating effect to make the temperature of metal material surface go up promptly, surface beginning melt when temperature reaches the melting point of metal, metal material is heated up continuously by surface to core till the metal droplet of melting

    自懸浮定向技術制備金屬納米微粒與一般的蒸發冷凝法有所不同,其原理是:金屬材料在高頻場中產生表面感生,由於趨膚加熱效應使得金屬材料表面的溫度迅速升高,當溫度達到金屬的熔點時表面開始熔化,通過熱作用金屬材料由表面到芯部不斷加熱直至熔化成金屬液滴。
  10. This paper makes a further analysis of the traditional opinion about ampere force that is the macroscopic showing of lorentz force, and it demonstrates that microscopic nature of ampere force is composition of electric field forces applied by hall electric field which is caused by lorentz forces for the positive ions at the crystal lattice of the conductor in magnetic field

    摘要對安培力是洛倫茲力的宏觀表現的統說法進行了深入剖析,指明了安培力微觀本質是由於洛倫茲力而引起的霍爾場對場中載體的晶格正離子施加的場力的合力。
  11. In addition, the characteristics of critical current of hts tapes in ac applied field and that of voltage - current curve when transport ac currents were studied. the problem on the criterion of ac current carrying capacity of hts tape was discussed, and some suggestion on the criterion of ac current carrying capacity were proposed

    另外,對高溫超帶材在交背景場下的直臨界特性,及超輸交時的?壓曲線特性進行了實驗研究,並對高溫超帶材的交最大載能力的測量判據問題進行了探討,給出最大交測量判據的建議。
  12. One kind of electromagnetic radiation leakage of computers is conducted emission, with radiation through power wires and signal lines ; the other kind thereof is due to that : magnetic fields produced by signal current of computer processors and displays in equipment may leak through the cable sleeves and be picked up by the current probes clamped on lines, and the signals received may be sent to the specially - made receiver for processing and restoration

    計算機波輻射泄漏一類發射,通過源線和信號線輻射;另一類是由於設備中的計算機處理機、顯示器信號產生的場可能透過外套泄漏出來,被卡在線上的探頭檢拾到。
  13. With the software cadence, model establishment and parasitic parameter extraction are made on the main pcb lines of the proposed circuits. equivalent circuit models of common mode combined with differential mode current and noise simulation models are also established on full bridge switching - mode converters. study on the simulation of conducted interference noise is made with the software saber and the effects on the circuits " noise by the main parasitic parameters are also analyzed

    在對全橋開關型變換器路工作原理分析的基礎上,建立了全橋開關型變換器主要元器件的干擾參數模型,利用cadence軟體對其pcb主要印製線進行了建模分析和寄生參數的提取,得到了全橋開關型變換器干擾的共模、差模噪聲等效路模型以及噪聲模擬模型,並運用saber軟體進行了性干擾噪聲的模擬研究,分析了主要寄生參數對路噪聲的影響。
  14. For the first time, the solenoid collecting magnetic field optical transducing principle is presented in this paper, and it is proved that the way to measure current by polarized light encircling conductor and that by polarized light threading solenoid axes are equivalent

    為了解決aoct的長期運行穩定性問題,首次提出了「螺線管聚光學感原理」 ,證明了偏振光圍繞著無限長通體測量與偏振光通過通螺線管的軸向方向測量,在光學感測量的意義上是等價的。
  15. To study the of effect of insulator layer among tapes in a stack and the influence of frequency of ac transport currents on ac losses, ac losses of a single tape and stacks were measured for ac transport current with different frequencies in two cases : with and without insulator among the tapes in a stack. theoretical formulae to calculate hysteresis losses in stacked tapes were also presented

    研究了高溫超帶材及並聯堆疊帶材的交損耗隨頻率的變化情況;及多根並聯組合超帶間絕緣對交損耗的影響情況;實驗研究了並聯堆疊帶材的各向異性特性;給出了有限根超帶並聯時,滯損耗的理論計算公式。
  16. As a consequence, the safe coefficient has to be considered according to the result of the calculations when designing. this inevitably makes the structure more redundant than it ought to be. what ' s more, materials are wasted by this design method

    隨著計算機技術的飛速發展,使得有限元分析計算方法得到了廣泛的使用,涉及航空航天,土木,水利,造船及機械工程等各領域,用來進行結構力學分析,體力學分析,熱分析。
  17. In the design of real - time control system, the paper takes three - phase full - bridge mosfet inverter as the real - time control main circuit, and adopts a control scheme with 120 ? switching mode combined with half - bridge pulse width modulation ( pwm ), which would avoid straightthrough short of a certain bridge. phase current is detected by single current sensor ; three - phase position signals generated by position sensors could not only supply commutation information for inverter, but also be used for speed detecting based on signals " period measurement, which makes the speed sensor unnecessary. the whole control system adopts speed and current dual closed - loop control strategy in order to construct a high performance rare - earth permanent magnetic brushless dc motor ( repm bldcm ) full - digital real - time control system

    在實時控制系統的設計中,本文以三相全橋mosfet逆變路作為實時控制主路,採用120通方式結合半橋pwm調制的控制方案,從而有效地避免了橋臂的直通短路;本文用單感器實現對相的檢測,來自位置感器的三相位置信號不僅為逆變路提供換相信息,而且也用於基於信號周期測量的轉速檢測,這樣就省去了速度感器;系統採用的是速度、雙閉環控制策略,力求構建高性能的稀土永無刷直動機全數字實時控制系統。
  18. Skin effect is the tendency for alternating current to flow near the sruface of the conductor in lieu of flowing in a manner as to utilize the entire cross - sectional area of the conductor. this phenomenon causes the resistance of the conductor to increase. the magnetic field associated with the current in the conductor causes eddy currents near the center of the conductor which opposes the flow of the main current near the center of the conductor. the main current flow is forced further to the surface as the frequency of the alternating current increase

    表面疚是指交較傾向于體的表面而非經整個體截面的趨勢,這些現象會造成體的阻提高,與體中的有關的場在體中心部位產生過而阻礙了中心部位的主要,當交的頻率增加時,主要向會進一步被推擠到體表面。
  19. In the meantime, the paper introducted the method of fixed - frequency sampling in combination with commutation method by overlap in order to hold back the torque ripple of bldcm

    論文主要研究了兩相和三相無位置感器永無刷直機由換相引起的轉矩波動,推出相應的轉矩波動公式,提出一種採用定頻采樣和重疊換相相結合的方法對換相轉矩波動進行抑制和控制。
  20. In chapter 2, gives a brief introduction to the basic theory of induction heating technique ; a mathematical modal is developed to describe the distribution of electromagnetic field and eddy current density in the long solid cylinder billet of induction heating. the general question of eddy current field calculation and the weakness of design theories for induction - heating coils that has won great popularity in engineering are pointed out

    第二章:介紹了感應加熱的基本原理,推了感應加熱工件內場與渦分佈的理論公式,對感應加熱渦場計算的一般問題、統感應加熱工程工程設計計算的不足以及場數值計算方法作了介紹。
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