limit current density 中文意思是什麼

limit current density 解釋
極限電流密度
  • limit : n. 1. 界限，界線；邊界。2. 極限，限度；限制。3. 〈pl. 〉范圍，范域。4. 限價；限額；賭注限額；獵物限額。vt. 1. 限制，限定。2. 減少。adj. -able
  • 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。
  • density : n. 1. 稠密；濃厚。2. 【物理學】濃度；密度；比重。3. 愚鈍，昏庸。
  1. Liberation of hydrogen gas would be increased rapidly and sic particles on the surface might be dispersed if the current density exceed the upper limit. furthermore, nickelous hydroxide would be deposited because the ph of plating solution nearby the surface rapidly increased. all of above might result in coating deterioration

    若電流密度過大，超過所允許的上限值，會析出大量的氫氣，可能沖散表面覆蓋的sic微粒，而且易使磨頭表面鍍液ph值急劇上升而形成氫氧化鎳沉澱，導致鍍層質量惡化。
  2. The ingaas / gaas strained quantum well lasers are able to work with extremely low threshold current density, high characteristic temperature and high cod limit, which make ld lasers achieve higher output power and longer ufe. therefore, ingaas / gaas strained quartum wellstructures can be used for the fabrication of high power semiconductor lasers

    Ingaas / gaas應變量子阱激光器具有級低的閾值電流密度、較高的特性溫度和較高的光學災變損傷閾值，這使得激光器具有更高的輸出功率和更長的壽命。因此ingaas / gaas應變量子阱結構可以用於大功率半導體激光器的制備。
  3. Magnetics is one of the main factors, which limit the power - density and characteristics of power module. for lowing weight and volume, reducing power loss and ripple current, improving dynamic performance, the magnetic - integration technique has been one of the research populations in power electronics. the thesis researches the magnetic - integration applied to the active - clamp forward converter so as to reduce the ripple current and improve its performance

    對于已經大量採用高頻軟開關技術的模塊電源，限制其功率密度進一步提高、性能進一步改善的重要因素之一是磁性元件，而磁集成技術由於具有可以減小磁件體積重量，減少磁件損耗，減小輸出電流脈動，改善輸出動態性能等優點，成為目前電力電子技術的研究熱點之一。
  4. At the delay time when the area on the anode surface bombarded by electrons expands to a maximum field, the upper limit of ion beam current output is reached. the ion beam parameters are an accelerating voltage of 220 kv, an ion current density of 350 a / cm2 with beam pulse width of 70 ns and with composition of 30 % proton and 70 % carbon ions

    在電子流對陽極轟擊面積達到最大所對應的延遲時間，獲得了最大離子束流密度輸出，離子束參數為： 220kv ， 350a cm ~ 2 ， 70ns ，成分約為30 h離子和70 c離子，離子束流密度的波動同樣可控制在20 。
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