critical current 中文意思是什麼

critical current 解釋
監界電流
  • critical : adj 1 批判的，批評的；（在某方面）有鑒定力的 （in）。2 吹毛求疵的；愛挑剔別人的 （of about）。3 ...
  • current : adj. 1. 通用的，流行的。2. 現在的，現時的，當時的。3. 流暢的；草寫的。n. 1. 水流；氣流；電流。2. 思潮，潮流；趨勢，傾向。3. 進行，過程。
  1. Effect of precursor powder on microstructure and critical current density of - 2223 tapes

    銀超導帶材的顯微結構及臨界電流密度的影響
  2. 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。
  3. The calculations axe based on the equation of current motion with temperature and field - dependent critical current density, and the heat dissipation produced by flux motion in the normal state region and the superconducting state region

    此計算基於電流運動方程，考慮到電流密度是溫度和磁場的函數，考慮到在正常區和超導區由磁通運動產生的熱耗散。
  4. Superconductivity - critical current measurement - dc critical current of nb3sn composite superconductors

    超導性.臨界電流測量. nb3sn復合超導體的直流臨界電流
  5. Superconductivity - part 2 : critical current measurement - dc critical current of nb3sn composite superconductors

    超導性.第2部分:臨界電流測量. nb3sn復合超導體的直流臨界電流
  6. 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 。
  7. A modified definition of polarization resistance calculated from the equivalent circuit of eis make its value dependent on the grain size. in anodic polarization test ( sweeing and stair - steps ), the maximum ( critical ) current density increases while the passivation potential and breakdown potential lowers with the reduction of the grain size. fegsem images showed the grain growth and pitting corrosion of the nc copper surface, uniform corrosion in the mc copper surface and the broken passivation layer in both surfaces

    在陽極極化實驗（包括掃描法和臺階法）中，致鈍電流雖晶粒尺寸減小而增大，而致鈍電位和擊穿電位都隨著晶粒細化而降低。 fegsem照片發現了納米晶銅的晶粒長大和孔蝕，微米晶銅表面的均勻腐蝕，和兩種銅表面破碎的鈍化膜。
  8. 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。
  9. In neutral solution containing chloridions, the nc copper has a more positive corrosion potentialanodic polarization test revealed that the nc copper has a lower passivation potential, critical current density and passivation current density

    Eds分析表明納米晶銅蝕孔中的s和cl含量遠高於表面。在中性含氯溶液中，納米晶銅的腐蝕電位比微米晶銅高300mv 。
  10. 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。
  11. Puckering critical current

    起皺臨界電流
  12. The critical current density of pure mgb2 is comparable to that of triniobium tin at low magnetic fields but falls off much more rapidly at higher fields

    在低磁場下，硼化鎂的臨界電流密度與三鈮化錫相當，但是在較高的磁場下卻下降得很快。
  13. Currently one of the major challenges associated with making mgb2 a useful superconducting material is to increase its critical current density at higher magnetic fields

    要將硼化鎂製成有用的超導材料，目前最主要的挑戰之一，就是如何在較高的磁場下增加臨界電流密度。
  14. The dc critical current measurement for ag or ag - alloy sheathed bismuthal oxide superconductor

    銀或銀合金包套鉍系氧化物超導體直流臨界電流的測定
  15. Test method for d - c critical current of composite superconductors

    復合超導體d - c臨界電流的試驗方法
  16. When the stationary working current is lower than the critical current of the electromagnetic - elastic system, a numerical program is established to simulate the dynamic responses of the deformation of the current - carrying magnet subjected to a pulse current with rectangular shape

    結合其超導載流磁體的實驗結構，給出了超導磁體在不同穩態工作電流（即低於穩態的磁彈性失穩臨界電流）作用下受到矩形脈沖電流作用時的磁彈性動力響應的數值模擬結果。
  17. The results that increasing of bias current and shunted resistance and lowing critical current and connected inductance can decrease the transmission time are shown ; ( 4 ) a new type of circuit, ladder shape multiplayer jtl. structure is provided by author, thus output signal of rsfq circuits can be amplified before transfer to room temperature electronics system. it has highly gain of amplify relatively and the double peak structure are avoided through decreasing parasitic capacitance

    （ 4 ）針對目前超導與室溫介面電路的電壓放大器存在的「雙峰」和放大增益效率較低的不足，提出了一種全新的階梯式多層jtl電壓放大電路結構，較好的解決了以上的問題，通過初步的模擬分析證實，該電路的構思極負有創新性。
  18. The effects of bending strain on the critical current and alternating loss of bi2223 hts tapes

    2223帶材的臨界電流及交流損耗研究
  19. Practical study about high critical current intensity in superconductor of y - ba - cu - o compound system

    系超導體高臨界電流密度的實驗研究
  20. 3 sn superconductivity - part 2 : critical current measurement - dc critical current of nbsn composite superconductors

    超導體.第2部分:臨界電流測量.鈮
分享友人
分享到 Line

分享到臉書