field orientation中文

• 感受野定向

• "field" 中文翻譯 :    n. 1.原野，曠野；(海、空、冰雪等的)茫茫一片。 2 ...
• "orientation" 中文翻譯 :    n. 1.向東，(禮拜時)東向；置于東端。 2.(房屋等 ...
• "field-orientation" 中文翻譯 :    場取向
• "orientation of sensory field" 中文翻譯 :    感受野朝向
• "receptive field orientation" 中文翻譯 :    感受野定向
• "visual field axis orientation" 中文翻譯 :    視野軸方向
• "at the orientation" 中文翻譯 :    歡迎新同事
• "a axis orientation" 中文翻譯 :    a軸取向
• "a-axis orientation" 中文翻譯 :    a軸取向
• "absolute orientation" 中文翻譯 :    對地定位; 絕對定向
• "achievement orientation" 中文翻譯 :    成就導向型
• "acoustic orientation" 中文翻譯 :    音波定向
• "action orientation" 中文翻譯 :    動作的定向; 動作定向; 面向行動
• "active orientation" 中文翻譯 :    主動取向
• "align orientation" 中文翻譯 :    對齊方向
• "alignment of orientation" 中文翻譯 :    方位對準
• "allocentric orientation" 中文翻譯 :    他物中心定向
• "alternate orientation" 中文翻譯 :    選用方位
• "amorphous orientation" 中文翻譯 :    非晶取向; 非晶態取向
• "analytical orientation" 中文翻譯 :    解析定向
• "angle of orientation" 中文翻譯 :    定向角; 方位角; 取向角
• "angular orientation" 中文翻譯 :    角定向; 角度方位
• "arbitrary orientation" 中文翻譯 :    假定方位標定; 任意取向
• "astronomical orientation" 中文翻譯 :    天文定向

• In this scheme , the torque of motor is calculated and controlled in the staler reference frame . by using stator field orientation , the optimum switching mode is achieved to control the inverter
  它直接在定子坐標系下計算和控制交流電動機的轉矩，采用定子磁場定向控制，直接對逆變器的開關狀態進行最佳控制。
• Secondly , to achieve the independent regulation of active and reactive power output from the generator side which is designed for the purpose of tracing the maximum wind - energy capturing . the paper has analyzed the mathematic model of the ac excited doubly - fed machine and the stator field orientation control strategy of the motor as vscf wind power generator . thirdly , it has put forward and designed the dual pwm converter with the capacity of energy flowing bidirectional aimed at the demand of rotor energy bidirectional flow . the author constructed reliable and integrated experimental system and did a series of experimental study including no - load , cutting - in network and power generation at , below and above the synchronous speed
  論文首先分析了風機運行特性及其最佳風能利用原理，通過仿真及實驗驗證了采用直流電機的輸出特性模擬風力機的最大輸出功率曲線的可行性，并給出了模擬系統的硬件結構；然后為了實現交流勵磁發電機有功、無功功率獨立調節機理，分析了交流勵磁雙饋發電機的數學模型和在追蹤最大風能捕獲變速恒頻風力發電時必需的定子磁鏈定向矢量控制策略；針對雙饋發電機轉子能量雙向流動的要求，提出并設計了具有能量雙向流動能力的雙pwm交流勵磁用變頻器；最后為實現從理論到實踐的全面研究，研制出了一套小功率完整的雙pwm變頻器交流勵磁的雙饋風力發電機實驗系統，進行了空載、并網、同步速及上、下的發電運行等一系列的運行實驗；所完成的仿真和實驗研究均驗證了理論、模型和控制策略的正確性、可行性。
• The general situation and progress of magnetic dipole theoryresearch during recent twenty years in china were introduced briefly including magnetic dipole ; linear and strip magnetic dipoles of finite lengths ; magnetic force on a magnetic particle ; the effect of magnetizing field orientation on the revelation of defect by magnetic particles ; longitudinal magnetization of rod , tube and cuboid steel ; the relationship between the slot depth in a workpiece and magnetic leakage field ; the cause of stray magnetic pattern along base apex edges of a workpiece magnetized circumferentially ; the analytic expression for the magnetic leakage fields inside and outside the slot on the cylindrical surface of a disc ; and the effect of a needle - like magnetic medium on the magnetic force between two point magnetic charges
  簡述20年來中國無損檢測中磁偶板子理論研究的概況和進展，主要介紹磁偶極子，有限長磁偶極線和極帶，磁粉顆粒的受力，磁化場方向對磁粉顯現缺陷的影響，棒料、管材和方鋼的縱向磁化，工件表面溝槽深度對其引起漏磁場的影響，周向磁化時工件底棱上的雜亂顯示成因，圓盤邊緣柱面上溝槽內外漏磁場的解析表達式和針狀磁介質對兩個點磁荷間磁力的影響等。
• For an ev drive system , the variation of rotor time constant will bring on variation of torque and exorbitant line voltage even the field orientation may be destroyed . the varied torque will affect ev dynamic performance , and the higher voltage will limit the output power due to the bound of batteries in ev
  對于電動汽車驅動系統來說，轉子時間常數的波動會導致輸出轉矩和電機電壓的波動，并且嚴重時會導致系統出現振蕩，轉矩的波動會影響汽車的動態性能，電機電壓的波動則會由于電池電壓的限制而影響電機的輸出功率，這些都是電動汽車的驅動系統應該避免的問題。
• Abstract : the general situation and progress of magnetic dipole theoryresearch during recent twenty years in china were introduced briefly including magnetic dipole ; linear and strip magnetic dipoles of finite lengths ; magnetic force on a magnetic particle ; the effect of magnetizing field orientation on the revelation of defect by magnetic particles ; longitudinal magnetization of rod , tube and cuboid steel ; the relationship between the slot depth in a workpiece and magnetic leakage field ; the cause of stray magnetic pattern along base apex edges of a workpiece magnetized circumferentially ; the analytic expression for the magnetic leakage fields inside and outside the slot on the cylindrical surface of a disc ; and the effect of a needle - like magnetic medium on the magnetic force between two point magnetic charges
  文摘:簡述20年來中國無損檢測中磁偶板子理論研究的概況和進展，主要介紹磁偶極子，有限長磁偶極線和極帶，磁粉顆粒的受力，磁化場方向對磁粉顯現缺陷的影響，棒料、管材和方鋼的縱向磁化，工件表面溝槽深度對其引起漏磁場的影響，周向磁化時工件底棱上的雜亂顯示成因，圓盤邊緣柱面上溝槽內外漏磁場的解析表達式和針狀磁介質對兩個點磁荷間磁力的影響等。
• In the paper , the principle and actualizing means of spatial vector control have been systemically discussed and the control software has also been designed . the magnitude of both the rotor flux and the current in torque component have been estimated by using a flux observer , which is developed based on field orientation control principle . the results show that the observer has a good feature due to its speed being calculated without speed sensor or additional hardware
  本文對矢量控制的原理、控制方法以及控制實施策略進行了較為系統的分析與研究，利用速度間接觀測理論，建立了異步電機的磁通觀測器，電機的定子磁通和電流的轉矩分量可以通過磁通觀測器估算出來，從而得到電機的轉速，并由此建立了異步電機無速度傳感器矢量控制的理論數學模型和相應的控制算法，在此基礎之上，利用工程中常用的電機專用dsp芯片tms320lf2407作為處理器，對異步電機進行變頻調速控制。