磁超導體 的英文怎麼說
中文拼音 [cíchāodǎotǐ]
磁超導體
英文
magnetic superconductor-
Lues research on the stability and quench issues of superconductors and superconducting magnets spanned both the low and high temperature superconductors
呂錦文在超導體及超導磁鐵的穩定和驟停問題的研究,從低溫超導體延伸到高溫超導體。Superconductivity - ac loss measurements - magnetometer methods for hysteresis loss in cu nb - ti multifilamentary composites
超導性.交流電損耗測量. cu nb - ti多絲復合超導體磁滯損耗的磁強計測量法Superconductivity - part 13 : ac loss measurements ; magnetometer methods for hysteresis loss in cu nb - ti multifilamentary composites
超導性.第13部分:交流電損耗測量. cu nb - ti多芯復合超導體磁滯損耗的磁強計測量法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導體的交流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系高溫超導單根帶材、多根超導並聯組合帶材、及超導線圈的臨界電流與交流損耗的特性:重點研究了交流損耗與臨界電流的電磁特性、機械特性、各向異性特性、及帶間絕緣層與傳輸電流頻率對交流損耗的影響等。Simulation of vortex moving in disordered superconductors
無序釘扎超導體中磁通運動的模擬研究The paper described the problem of simplified calculation of static magnetic field in the thin gap among superconductor blocks, and applied the conclusion to the designing of a actual sc flywheel system, in which that the calculating results approved be right and effective
摘要本文分析了超導體間靜磁場分佈的簡化計算問題,並將推導的結論應用於超導飛輪設計中,數值計算結果證明分析方法是正確的,應用是有效的。In this paper, the levitation performance of melt - textured growth ( mtg ) ybacuo bulk effected on ndfeb in the condition of deep cool
本文所研究的是深冷環境下熔融織構高溫超導體塊材ybacuo在永久磁體ndfeb作用下的懸浮性能。Since high tc superconducting ( hts ) tapes for practical applications became commercially available over the past few years, the development of superconducting power technology has achieved significant progress. it is foreseen that superconducting technology will be the prevailing high technology of the 21st century, and that superconducting power equipment will be commercialized soon, enjoying a large - scale worldwide market before 2010. china ' s economy is expanding fast, and the demand for electricity is increasing quickly. at the same time, higher electricity quality will be required. traditional power technology will no longer be able to satisfy future requirements, so superconducting power technology would be the best solution, leading a revolution in the power industry. the history, present status and prospects of superconducting power technology as well as the economic benefits and basic physics problems involved are reviewed
人們認為,超導體在電力方面出現大規模應用的時間距離我們還非常遙遠.然而,隨著最近幾年來實用高溫超導材料的研製取得重大的進展,高溫超導電力技術的應用已經成為現實,預期將在2010年左右出現大規模的應用,並將帶來電力工業的革命.因此,下一個10年將是國際超導技術競爭最關鍵的10年.我國的經濟發展很快,電能需求量增加十分迅速,對電能質量的要求也越來越高.常規電力技術已經無法滿足我國電力發展的需要,超導電力技術是實現我國電力發展目標的必由之路.文章有代表性地介紹了超導電纜、超導限流器、超導磁儲能系統、超導變壓器和超導旋轉電機等的基本工作原理及研究發展歷史,並著重介紹高溫超導電力應用研究的現狀、應用前景、經濟可行性及基本物理問題The vector magnetic potential of a system consisting a line electric current and an infinite long magnetic dielectric column is calculated with the method of separation of variables and method of images, it is pionted out that the vector magnetic potential of a system consisting a line electric current and a magnetic dielectric plane, an ideal paramagnetic column, a superconductor column, and a line electric current in homogeneous magnetic field can all be deduced from our calculation
摘要用鏡象電流法和分離變量法計算了線電流與無限長磁介質圓柱系統的磁矢勢,指出線電流與無限大磁介質分界平面、線電流與超導體圓柱、均勻外磁場中有磁介質圓柱系統時的磁矢勢都可以由線電流與磁介質圓柱系統的磁矢勢的極限情形給出。Results show that the levitation force is generated between the high temperature superconductor and the magnetic field under the critical temperature. the value of the levitation force is determined by the temperature and the gradient of magnetic field. that is the smaller of the gap, the larger of the levitation force when the temperature is fixed, and the value of the levitation force is an exponential function of the gap
研究表明,當高溫超導體的溫度低於其臨界溫度時,在磁場中開始受到力的作用;受到的懸浮力大小由溫度和磁場梯度共同決定;即溫度一定時,懸浮間距越小,對應的磁場梯度越大,懸浮力就越大,力的大小與懸浮間距成指數關系;而當懸浮間距一定時,溫度越低,對應的懸浮力也越大,且超導體剛進入超導態的一段溫度區間懸浮力增大最快。It was found that a bulk high - temperature superconductor can stably levitate above or suspend below a permanent magnet soon after the discovery of high - temperature superconductor
高溫超導材料發現后,人們很快注意到用這種陶瓷材料制備的塊狀超導體可以穩定地懸浮在永磁體之上或懸掛于其下。The improvement of performance of hts makes its application in magnetic levitation and other areas become easier
同時,高溫超導體性能的不斷提高,為高溫超導在磁懸浮及其他方面的應用開辟了廣闊的前景。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,對高溫超導帶材在交流背景磁場下的直流臨界電流特性,及超導體傳輸交流時的流?壓曲線特性進行了實驗研究,並對高溫超導帶材的交流最大載流能力的測量判據問題進行了探討,給出最大交流載流電流測量判據的建議。Also considered is the dependence of the guidance performance of the superconductor upon such elements as geometrical and current parameters of the system, the movement of the superconductor. comparison between the experimental and theoretical results indicates the effectiveness of the method utilized in the thesis
這些元素包括以下三方面,系統的幾何尺寸:高溫超導體的幾何尺寸、永磁導軌的幾何尺寸;系統的電流參數:高溫超導體的臨界電流密度、永磁導軌中永磁體的均勻磁化強度;高溫超導體相對導軌的運動方式。Pinning centers, that are some abnormal regions in type ii superconductors, will hinder the flux motion. certain of remnant magnetism in a superconductor will make it to a superconducting permanent magnet
非理想第類超導體內部存在的異常區,即釘扎中心,會對磁通線的運動產生阻礙作用,使超導體具有一定的剩磁而成為超導永磁體。Based on the effective mass theory and critical state model, an anisotropic theory of critical current and ac losses for single hts tape and tape stacks were established. analytical formulae were presented to calculate critical currents and ac losses with an arbitrary angle between the wide side of hts tape and the direction of ac or dc applied fields. from the anisotropic theory of ac losses of hts sample, a numerical model to calculate ac losses of hts coil was developed
基於臨界態模型與高溫超導體的有效質量理論,建立了高溫超導帶材及並聯堆疊帶材的交流損耗與臨界電流的各向異性理論模型;給出了高溫超導帶材的交流損耗及臨界電流隨(交、直流)背景磁場與超導帶面夾角變化規律的理論公式;依據所建立的高溫超導短樣帶材的各向異性理論公式,給出了高溫超導線圈交流損耗的數值計算模型;並利用該模型,計算了高溫超導雙餅線圈的交流損耗;並與實驗測量結果進行了比較分析。As an application of the model, the curve - negotiation performance of a board - like superconducting magnetically levitated system is considered. it is pointed out that more attention should be paid to the reversibility of the movement of the superconductor above the guideway
作為高溫超導體與外場相互作用模型的一個應用,本文最後對類似於當前高溫超導磁懸浮實驗車底盤的平板式高溫超導磁浮系統的曲線通過性能進行了初步研究。In pulsed field magnetization condition, we find some new phenomena characteristic, that is, the trapped fluxes of ybco bulk increase with increasing intensity of applied field up to about 1. 9t, but decease beyond this value and the scanning distribution map of the trapped fluxes on the surface of the superconductor is not slick, which is different with the superconductors magnetized in constant magnetic field and the normal permanent magnets
超導體在脈沖場下具有特殊的勵磁特性,當脈沖場在1 . 9t左右時,由於在脈沖場下超導體內的磁通線運動受到較大的粘滯力作用,超導體表面中心的俘獲場分佈掃描圖將出現一些凹陷區域,這是跟超導體在恆定場下的勵磁和一般永磁體所不同的。Abstract : one of the unsolved problems of the high power application of high temperature superconductors is how to lower the energy dissipation induced by flux motion. due to the extremely high anisotropy, small coherence length and weak pinning potential, the mixed state phase diagram which is tightly related to the flux dynamics becomes very complicated. a brief account is given of the field induced crossover of criticalities of energy dissipation, which has been observed in our recent sensitive electromagnetic measurement
文摘:高溫超導體在強電方面應用的關鍵問題是如何克服磁通運動所造成的能量損耗.由於存在極強的各向異性、短的相干長度和小的磁通釘扎勢,因此與磁通運動緊密相關的混合態相圖變得很復雜.文章綜述了根據一系列靈敏的電磁測量所觀察到的磁場誘導的能量耗散行為的轉變The present thesis considers the guidance performance of a superconductor when it moving quasi - statically above the permanent magnetic guideway. with different cooling conditions, the guidance forces of superconductors of different geometrical sizes are measured
在實驗方面,利用現有高溫超導磁懸浮測試系統對不同場冷條件下不同尺寸高溫超導體的準靜態導向性能進行了測試。分享友人