磁學實驗 的英文怎麼說

中文拼音 [cíxuéshíyàn]
磁學實驗 英文
magnetics experiment
  • 磁 : 名詞1. [物理學] （磁性; 能吸引鐵、鎳等的性質） magnetism 2. （瓷） porcelain; china
  • 學 : Ⅰ動詞1 （學習） study; learn 2 （模仿） imitate; mimic Ⅱ名詞1 （學問） learning; knowledge 2 （學...
  • 實 : Ⅰ形容詞1 （內部完全填滿 沒有空隙） solid 2 （真實; 實在） true; real; honest Ⅱ名詞1 （實際; 事實...
  • 驗 : 動詞1. （察看; 查考） examine; check; test 2. （產生預期的效果） prove effective; produce the expected result
  1. The essential aspect of the mathematic model for inductor is the description of the hysteresis loops of the magnetic core material. the jiles - atherton ferromagnetic theory combined with the experience formula proposed by h. g. brachtendorf, c. eck and r. laur, was applied in this case. the model is more flexible than jiles - atherton ’ s, especially in the circuit model convert

    本文採用了由h . g . brachtendorf 、 c . eck 、 r . laur提出的經驗公式與jiles - atherton鐵磁磁滯理論相結合的修改新數學模型，並將該模型轉換為等效電路模型模擬磁滯特性，實驗結果表明，該模型比jiles - atherton模型靈活，利於轉換為宏觀電路模型。
  2. Michael persinger, a professor of neuroscience at laurentian university in sudbury, ontario, has been conducting experiments that fit a set of magnets to a helmet - like device

    安大略湖薩德伯里[加拿大南部城市]勞倫系大學的神經系統科學家邁克爾?伯辛格已經主導了這實驗，把一套磁鐵固定在像頭盔的裝置上。
  3. Shen, a member of ornl ' s condensed matter sciences division, is being cited for his pioneering approach to the study of magnetism in nanostructured materials synthesis

    沈，美國國立橡樹嶺實驗所科學領域的精英之一，是研究原料合成磁學的領先人物。
  4. This text divides into five chapters altogether : chapter one in the introduction, have introduced the common sensor of displacement, has pointed out the fine characteristic of hall ' s sensor, put forward the basic task ; chapter two have introduced the basic operation principle of hall ' s component ; chapter three introduce hall temperature performance, electromagnetic characteristic, zero error, frequency characteristic and these parameter commonly used compensation method and hall simple application of component ; chapter four having recommended the measurement principle of the feedback servo mechanism, systematic implementation method, the experimental result has appeared, structure the mathematics model, and has analysed the error ; chapter five have pointed out the developing direction in the future while looking forward to

    本文共分為五章：第一章緒論中，介紹了常見的位移傳感器，指出了霍爾傳感器的優良特性，提出了基本任務；第二章介紹了霍爾元件的基本工作原理；第三章介紹了霍爾元件的溫度性能、電磁特性、零位誤差、頻率特性以及這些參數常用的補償方法和霍爾元件的簡單應用；第四章介紹了反饋隨動機構的測量原理，系統的實現方法，給出了實驗結果，構建了數學模型，並對誤差進行了分析；第五章展望中指出了今後的發展方向。
  5. In 1998, m. guillot, a french physical scientist, reported the magnetic properties in single crystal ergag., which showed some specific properties, and aroused the research interest of many theoretical scientists

    1998年，法國的物理學家m . guillot發表了一篇關于單晶ergag石榴石磁特性的實驗報道，顯示了強磁場下其特有的一些磁性現象，引起眾多理論工作者的興趣。
  6. Historically speaking, special relativity grew out of classical electromagnetic theory and experiments inspired by it.

    從歷史上講，狹義相對論來源於經典電磁學理論及其所引起的多種實驗。
  7. The stability of electric power system has been being focused for a long time toprevent a power system from losing synchronism after sudden fault ， researchers have done much work and got many accomplishments this paper applied the direct feedback linearization ( dfl ) technique on the power system ， a strong nonlinear system simulation results by matlab proved this method efficiency main works and results are as follows ： this paper compared some existing methods in excitation control ， fast valve control and coordinated control respectively, analyzed the developments and actuality of nonlinear control research in brief, illustrated why ransient stability could be greatly improved by using the fast valve control in chapter 3 ， indicated the importance of coordinated control farther this paper introduced the inverse system theory, based on which ， discussed the dfl theory, pointed out which had consistency with the inverse theory, expanded the dfl theory combined the idiographic model equations ， made which adapt to the model of a single machine - infinite bus power system this paper referenced abundance articles and educed a set of equations ， which could describe the dynamical process of excitation and fast valve control for synchronous generators in the equations ， there were several very important parameters of power system - - rotor angle ( ) ， rotor speed ( ) ， generator q axis voltage ( eq ) ， transient voltage ( e ' q ) ， active power ( pe ) ， mechanical input power ( pm ) ， valve opening ( ) ， generator terminal voltage ( vt ) ， based on the model ， nonlinear coordinated controller and terminal voltage optimal controller have been designed by using the expanded dfl theory and lq optimal control theory the simulation results showed that the controller could keep power system transiently stable under the effects of a symmetrical 3 - phase short circuit fault ， which achieved better postfault regulation compared with another two routine methods ， one is the proportion excitation controller and proportion fast valve controller, the other is the proportion excitation controller and the optimal fast valve controller, which could exert good performance when met 1ittle disturbance either

    在介紹逆系統理論的基礎上，詳細介紹了dfl理論，通過比較闡明了dfl理論其本質是逆系統方法的一類，並結合具體課題推導出的模型方程將dfl理論進行了擴展，使之適應于電力系統這個強非線性對象。通過參考大量的書籍文獻推導出一套實用的可將大型汽輪發電機勵磁與汽門綜合起來進行控制的模型方程，此模型方程涵蓋了電力系統中特別引人注目的幾個量- -轉子角、轉子轉速、發電機q軸電勢eq 、暫態電勢e ' q 、有功功率pe 、機械功率pm 、汽門開度、機端電壓vt ，在此基礎上建立了實用的電力系統簡化的數學模型，並將擴展的dfl理論應用於此模型系統，結合線性二次型最優控制理論設計出大型汽輪發電機的非線性綜合控制器及機端電壓最優控制器，通過模擬實驗與採用常規的按電壓偏差進行調節的比例式勵磁控制器+汽門比例控制及採用常規的按電壓偏差進行調節的比例式勵磁調節器和基於二次型性能指標設計的最優快控汽門（考慮發電機的飽和因素）進行了對比，證實了採用此種控制器可以有效地提高電力系統的暫態穩定性，並且在電力系統遭受小干擾時同樣具有良好的調節性能。
  8. There are five parts are as follows : in part one, the concept of switching function is introduced first to establish the nonlinear mathematical model of the induction motor variable frequency speed adjustment system which is fed by a sine pulse width modulated ( spwm ) inverter and takes the effect of the main magnetic circuit saturation into consideration, then the low frequency oscillation of the system is simulated according to the model. next, from the view point of energy conversion of the inverter - induction system, a criterion for the low frequency oscillation is proposed to determine whether the system is in low frequency oscillation which is judged by whether the interval of the negative current component of the inverter input current is more than 1 / fc ( fc is the carrier wave frequency of the inverter ) or not

    首先引入開關函數概念，建立了正弦脈寬調制（ spwm ）逆變器供電異步電動機，考慮主磁路飽和時的變頻調速系統整體數學模型，模擬系統的低頻振蕩；其次從逆變器-異步電動機系統能量轉換角度出發，提出通過檢測逆變器輸入電流中負電流的間隔時間是否大於1 / f _ c （ f _ c為逆變器載波頻率）來判定系統是否出現低頻振蕩；最後的實驗結果驗證了系統低頻振蕩建模和判據的實用性和正確性。
  9. The paper mainly focused on the beam transport part of asipp key laboratory of ion beam bioengineering and it ' s component elements, for example, van de graff accelerator, bending magnet, magnetic quadruple lenses, beam shutter, collimator and so on. the laboratory has performed the milestone achievement that is beam passed the hole of lo ^ m diameter in experiments. many experimental results are discussed by theories according to experiments

    本文重點討論了中科院離子束生物工程學重點實驗室單粒子束裝置的束流傳輸部分，對主要部件進行了詳細的討論，如：靜電加速器、偏轉磁鐵、磁四極透鏡、束線開關、瞄準器等，實驗中已取得束流穿過10 m小孔的標志性成果，並運用相關理論結合具體實驗分析了實驗結果。
  10. The theory has been implemented and verified experimentally on two high performance pmsm dtc drive systems in the laboratories of department of electrical engineering, zhejiang university, china, and the centre for electrical machines and power electronics, university of technology, sydney, australia

    上述理論分別在浙江火學電機控制實驗室以及悉尼科技大學電機及電力電子中心的兩臺高性能永磁同步電機直接轉矩控制驅動系統上應用並實驗驗證。
  11. The advanced control laboratory focuses on designing and developing strategies for control of contemporary electromechanical systems. current research areas include control of robot manipulators, multi - robot systems, visual tracking and control, control of induction motors, home automation, control of maglev systems, nano control, virtual reality, guidance and control of vehicles

    尖端控制實驗室是由傅立成老師所領導的研究群，研究范圍涵蓋國防、工業控制、奈米與磁浮精密定位技術、多群組機器人、影像追蹤與視覺、虛擬實境、機器人學與控制理論發展等。
  12. Obtaining structure and function of proteins is one of the main purposes of research in biology, but determining three - dimensional structure of protein by means of x - rays crystallography and nuclear magnetic resonance spectroscopy, and research in protein structure by the way of biochemistry, already can ’ t adapt the need of the rapid increase of protein sequence

    獲取蛋白質的結構和功能是生物學研究的重要目的之一，但是使用x光晶體衍射和核磁共振技術等實驗手段測定蛋白質的三維結構，以及使用生物化學方法研究蛋白質的功能時效率不高，已經無法適應蛋白質序列飛速增長的需要。
  13. In this paper, by explored geo - physico - chemical prospecting method for looking for oil in prior prospect, the authors summarize a suit of prospective technique and program, which is valid to oil - geology trait of zhidan area and composed of ; oil gas geo - chemical prospect ( acid degradation of hydrocarbon, absorbed - fluorescent spectrum, ultraviolet radiation spectrum, methane carbon - isotope ) non seismic detection in favorable explorative area which confirmed by chemical prospect ( matural potential, gamma energy spectrum. accurately magnetic analysis ) resistively prospecting in anomalous area which confirmed by physicalprospect successful general evaluation of geo - physicochemical prospect

    通過勘探早期地質物化探綜合找油方法實驗，筆者總結了一套適合志丹探區石油地質特點的勘探方法組合和勘探程序：油氣地球化學勘探（酸解烴、吸附烴、熒光光譜、紫外光譜、甲烷碳同位素、蝕變碳酸巖）化探圈定的有利勘探區進行非地震物探（自然電位、伽瑪能譜、高精度磁測、土壤測氧）物探圈定的異常區進行電阻率測深勘探地質物化探成果綜合評價。
  14. The time continuous mathematic models of typical control elements in the vehicle control system were developed by experiment, combining the time continuous mathematic models of traditional mechanical elements with that of typical electronic elements

    用實驗方法建立磁導航車體運動數字控制系統典型環節的時間連續數學模型，結合車體運動機械操縱環節的傳統數學模型建立整個控制系統的時間連續數學模型。
  15. The application of the structural teaching model is discussed and a teaching model ? ? structural classroom teaching model on electromagnetism in the teaching of general physics is given. this model is based on the principles of education model, and the fundamental idea of structuralism of discipline and it is also the summary of teaching experience. this model uses a block diagram to summarize the knowledge structure. the knowledge structure includes concepts, theorems, laws and so on. there are three implementation steps in this model ： the first to analyse the content to teach and find the develop meat course of the subject. the second is to emphasize concepts, especially the concept of field. the last is mastering the laws, especially the connection between them. the aim of giving the teaching model is to deepen the teaching reforming and intensify the teaching and learning of the basic knowledge of physics

    以教育模式的基本原理及學科結構主義的基本思想為指導，在總結教學經驗的基礎上，對結構化教學模式在學科教學中的應用進行了深入的探討，提出了普通物理教學中的電磁學結構化課堂教學模式.該模式強調用方框圖概括知識結構，把整個電磁學的知識結構即電磁學的概念、定理、定律及電磁場的性質等概括為一張方框圖，根據方框圖制定了該模式的實施步驟為三步：第一，掌握主線，弄清脈絡;第二，掌握概念，場是關鍵;第三，掌握規律，重在聯系電磁學結構化課堂教學模式旨在深化教學改革，加強物理學基礎知識的教學和學習
  16. Firstly, this paper proposes the mathematical model and finite - element analysis model of torque motor with mf and without mf. secondly, the electromagnetic field of torque motor is analyzed using the ansoft maxwell software ; static output torque of torque motor with mf and without mf is calculated. then the rotary angle of torque motor with different input electric current and mf is measured using three - coordinate measurement device

    本文首先給出了添加磁流體和不添加磁流體的力矩馬達磁路數學模型及有限元分析模型，其次，利用ansoft公司的maxwell電磁場分析軟體進行了力矩馬達的二維和三維磁場有限元分析，對添加磁流體和不添加磁流體的力矩馬達靜態輸出力矩進行了計算，並採用三坐標位移測量儀對不同輸入電流作用下、添加不同特性磁流體時力矩馬達的轉角進行了測量，從而對輸出力矩特性進行了實驗研究。
  17. 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，通過模擬及實驗驗證了採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，並給出了模擬系統的硬體結構；然後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恆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，提出並設計了具有能量雙向流動能力的雙pwm交流勵磁用變頻器；最後為實現從理論到實踐的全面研究，研製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、並網、同步速及上、下的發電運行等一系列的運行實驗；所完成的模擬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。
  18. Welcome to the bio - geomagnetism group of the pgl in beijing

    歡迎來到北京生物地磁學實驗室！
  19. The experiments of motor without and with load on a given frequency are completed in this paper. these results are compared and analyzed. the feasibility of the scheme is validated through the analysis of the results

    通過理論分析和對控制系統的設計，作者在dsp電機控制教學實驗及系統開發平臺上對六邊形磁鏈控制演算法進行了初步的開環實驗，完成了電機在一定頻率下空載和帶負載的實驗，並對實驗結果進行了對比分析，結果驗證了系統設計方案的可行性。
  20. A ferromagnetism rod is chosen as sample which is often used in the experiment of materials mechanics, was placed in the earth magnetic field and was under the application of stress

    本論文以材料力學實驗中常用的鐵磁性桿件作為研究對象，將其放置於地磁場中，受到應力的作用。
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