直流電導 的英文怎麼說

中文拼音 [zhíliúdiàndǎo]
直流電導 英文
d-c conductance
  • 直 : Ⅰ形容詞1 （成直線的; 硬挺的） straight; stiff 2 （跟地面垂直的; 從上到下的; 從前到后的） erect; v...
  • 流 : 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 : 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...
  • 導 : 動詞1. （引導） lead; guide 2. （傳導） transmit; conduct 3. （開導） instruct; teach; give guidance to
  • 直流 : direct current （dc）; constant current; steady current; continuous current; zero frequency curre...
  1. Test methods for dc resistance or conductance of insulating materials

    絕緣材料直流電阻或導電性試驗方法
  2. Adopted unique ventilation system and rotational direct current motor stabilize the hot airflow

    採用獨特的導風系統及旋轉式直流電機，恆定預熱風量。
  3. Adopted unique ventilation system and non - carbonate direct current motor stabilize the hot airflow

    採用獨特的導風系統及無碳刷直流電機，恆定預熱風量。
  4. Using the color sensor as the navigation sensor, with mcu for control centre, the robot is drived and change direction by the differ direct current motor

    用顏色傳感器作為導航傳感器，以單片機為控制器，直流電動機實現驅動和差動轉向。
  5. To giving some reference, this paper discusses the design of the instroduction, stirring up doubts, multimedia teaching and the content disposal about the emphacs and difficulty of the lessen of the base principle and structure of the dc motor

    摘要圍繞直流電機的基本工作原理與結構這節課的重點和難點，結合教學實踐，從導語設計、激疑教學、多媒體教學、教材內容處理等4個方面對其教學方法進行了討論，以期對教學同行提供借鑒。
  6. Furthermore, this dissertation also gives a comprehensive analysis and comparison to the torque ripple factor, torque - current ratio and other aspects for pseudo - sinusoidal emf bldcm drived by 120 conduction mode, 180 conduction mode and self - synchronous svpwm mode respectively. the simulation and the experimental results indicate that self - synchronous svpwm method is more effective for minimizing the torque ripple without any expense of the torque - current ratio when the crest width of the back - emf waveform is less than 107 electrical angles

    對準正弦波反電動勢無刷直流電動機在120導通方式、 180導通方式和自同步svpwm三種控制方式下的轉矩脈動系數、轉矩電流比等方面進行了全面的分析與比較，模擬研究和實驗結果表明，當反電動勢的平頂寬度小於107電角時，採用自同步svpwm控制方法可以在不損失轉矩電流比的基礎上，更有效地抑制電磁轉矩脈動。
  7. For the bldcm which has a general crest width of the back - emf waveform, two kinds of torque ripple conditions when drived by sine - wave current as well as by square - wave current are deduced based on the mathematical models. in addition, a comparison is carried out between these two conditions, which indicates that sinusoidal current driving is more favorable to minimizing the torque ripple when the crest width of the back - emf waveform is less than a certain value

    闡述了抑制齒槽轉矩措施對反電動勢波形的影響，利用無刷直流電機的數學模型推導並比較了任意平頂寬度梯形波反電動勢在正弦波和矩形波兩種電流驅動下的電磁轉矩脈動情況，得出在梯形波平頂寬度減小到一定數值后採用正弦電流驅動更有利於減小電磁轉矩脈動。
  8. This paper gives a method to measure the conductivity base on choosing frequency. after adding to the electrode with two ac square waves of appropriate frequencies, we can measure the output dc voltage of the circuit

    本論文提出了一種選頻電導率測量方法，選擇兩個合適頻率的交流方波施加於電極，測出電路輸出直流電壓，通過解方程組求出時間常數，然後求得溶液電阻，進而得到溶液電導率。
  9. Effect of bee - sting therapy on rat model with adjuvant - induced arthritis

    烏頭直流電離子導入對佐劑性關節炎大鼠痛閾的影響
  10. Application of mine electrical method in exploring the break - out - water collapse column in renlou mine

    直流電測深法在探測煤礦導水陷落柱中的應用
  11. Techniques and practice of detecting water flowing subsided column by ground direct current electrical sound method

    地面直流電測深法探測導水陷落柱技術與實踐
  12. Ten years after the discovery of high - temperature superconductivity, a technical study by the electric power research institute ( epri ) concluded that with liquid nitrogen as a coolant, a five - gigawatt dc “ electricity pipe ” could compete economically with a gas pipeline or conventional overhead lines for transmission distances of 800 kilometers or more

    發現高溫超導特性的10年之後，美國電力研究所（ epri ）一份技術研究報告指出，以液態氮當做冷卻劑時， 50億瓦特的直流電管傳輸800公里以上的成本，跟瓦斯管線或傳統架空電纜差不多。
  13. Semiconductor power convectors - adjustable speed electric drive systems - general requirements - part 1 : rating specifications, particularly for d. c. motor drives

    半導體功率變換器.速度可調式電力驅動系統.一般要求.第1部分:直流電動機專用額定值規范
  14. Semiconductor power convertors - adjustable speed electric drive systems - general requirements - rating specifications, particularly for d. c. motor drives

    半導體電源變換器.調速電驅動系統.一般要求.直流電動機驅動額定值規范
  15. At last, it deduced a new improvement method from the theories, and make use of a new physical concept ? the independent of speed function for accuracy checking up the turns sub - position and the communication point so as to control sensorless brushless dc motor with the breadth regulating - speed scope from zero to high speed. based on the function, it will research the new control method

    最後，從理論上推導了新的改進方法，並利用一個新的物理概念? ?與速度無關的位置函數g （ ） ，其能高精度檢測出轉子位置和換相點，以此來控制無刷直流電機，實現電機從零轉速到高轉速的寬速度范圍調節，在此基礎上研究了應用這種新的位置函數的控制策略。
  16. Against two kinds of nonlinear friction observers, the analytic expression of zero ve - locity interval t based on the nonlinear model of brushless dc motor system is deduced in this paper. simulation results indicate that the system performance at low velocity can be im - proved effectively using the friction observer based on coulomb friction model

    針對兩種不同的非線性摩擦觀測器，推導了基於無刷直流電動機非線性模型的零速度時間間隔腡解析表達式，通過模擬證實，利用基於庫侖摩擦模型的摩擦觀測器可以有效地改善系統的低速控制性能。
  17. The dc electric resistance test method for the critical temperature tc of a yba2cu3o7 - superconducting thin film

    釔鋇銅氧123相超導薄膜臨界溫度tc的直流電阻試驗方法
  18. Conventional dc motor ’ s mechanical commutator and brush result in limited capability, low reliability, big noise. people manage to develop more quiet, high efficiency and reliability, big capability driving motor

    傳統的直流電機由於其本身固有的特性，即有機械換向器和電刷從而導致電機容量有限和可靠性不高、噪音大，迫使人們探索低噪音、高效率並且大容量的驅動電機。
  19. The ideal bemf waveform of bldcm is trapezoid with 120 ! platform width. in the 120 conduction mode, the stator current is not ideal due to the stator inductance, and the torque ripple occurs

    理想的永磁無刷直流電動機的反電動勢的波形是120平頂的梯形波，在三相六狀態120導通方式控制下，電流由於電機定子電感的存在而不是理想方波，因此產生了換相轉矩脈動。
  20. In order to minimize the commutation torque ripple of traditional trapezoidal bldcm using 120 cconduction mode, firstly, analytical formulae of commutation torque in the condition of perfect back - emf waveforms are developed in this thesis, based on which the effects to the torque ripple by the pwm modes, overlapping commutation techniques and so on are analyzed, and the applicable speed ranges of the motors using the overlapping commutation techniques are derived

    為了抑制傳統的三相六狀態120導通方式控制下方波型無刷直流電動機的換相轉矩脈動，本文首先在理想反電動勢的條件下推導了換相轉矩脈動的解析公式，並由此分析了調制方式、重疊換相技術等對換相轉矩脈動的影響，得出了採用重疊換相技術抑制換相轉矩脈動適用的電機轉速范圍。
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