磁流波 的英文怎麼說
中文拼音 [cíliúbō]
磁流波
英文
hydromagnetic waver-
The factors influencing the phase components, microstructure, electromagnetic parameters of magnetic particles and rheological performances of mrs were systematicly studied. the temperature is a key factor in the thermolysis of dropping fe ( co ) 5 in constant temperature
系統地研究了合成條件對產物的物相組成、微觀結構、 2 - 18ghz的微波電磁參數及磁流變性能的影響。Abstract : according to the continuative condition of the tangential fields on the slot aperture which is the inclined narrow - slot on the broadwall of a sectoral waveguide, the moment method is used to calculate the magnetic current coefficient and distribution. then the scattering field, the scattering parameter and the equivalent impedance are obtained. leting only the te11 dominant mode propagates in the waveguide, the scattering parameters and the normalized equivalent series impedance in the x - band are computed. the basis disigned the slot antenna and the slot array is offered
文摘:根據縫隙口面切向場的連續條件，採用解析數值法矩量法，對扇面波導寬壁上窄的斜縫進行了計算，解得了磁流系數及其分佈，並得到散射場、等效散射參量及等效阻抗等重要參數.假定波導中僅有te11主模傳輸，在x波段計算了散射參量和歸一化等效串聯阻抗，給出計算結果，為縫隙天線和縫隙陣列設計提供了依據Linear induction motor is an important kind of machines which have some merits such as simple structure, low cost, durability, convenience for maintenance etc. the subject of this thesis is to study a big circular ring linear induction motor, and the major works in this thesis are summarized as follows : ( 1 ) considering the effects of the finite length of primary core, one - dimension analytical solution for the air gap field is cited in this paper. based on it, the single layer winding magnetic field is studied. considering whole - pitched and short - pitched winding configuration with odd poles and half - fulled slots in both ends, the double - layer winding magnetic field is analyzed, respectively
本文對大圓環直線感應電機進行了深入細致研究，內容包括： （ 1 ）本文採用有限長行波面電流作用於有限長鐵芯上的模型，引用了氣隙磁場一維解，研究了單層繞組磁場，奇數極半填槽雙層繞組在採用整距和短距時磁場的分析、比較，簡單介紹了二維解； （ 2 ）用有限元軟體ansoft對大圓環直線感應電機空載氣隙磁場進行了靜態分析，並分析了結果； （ 3 ）用軟體進行了額定電壓下的瞬態分析，得到了轉矩，位移，轉速隨時間變化曲線圖，利用單極性霍爾元件測定轉速並與軟體計算結果進行了比較，採用等效電路法計算了堵轉時的最大電磁力並做實驗進行了驗證，由實驗測得了三相電流波形，並與計算結果進行了比較，對其不對稱性進行了定性分析。Attenuation of hydromagnetic wave
磁流體波的衰減Digital control system of permanent magnet square wave brushless dc motor based on dsp
的永磁方波無刷直流電動機數字控制系統Transient electromagnetic methods ( tem ) can be called as time domain electromagnetic methods. the exploration equipments of tem include two units : transmitter and receiver. emission current falls down from i to 0 suddenly when step current passes through the transmitter loop
瞬變電磁探測需要發射的電流激勵信號要足夠強、功率足夠大，發射電流波形的關斷時間要求比較苛刻，而且發射部分還需提供實時監測發射電流、關斷時間，記錄電流下降沿等功能。When egg cell hormone directly act on the milk secreted from hypothesis, the breast can thoroughly absorb fat and expand the sponge organization so the breast will lift slowly. according this theory, e - mini cpu nanometer underwear adopt the stimulation of the magnetized wave imitative the same formulation of the nervous system to the growth of egg cell hormone and make you have a plentiful breast
使乳房更完善地吸收脂肪，海綿體增大，從而乳房便會逐漸隆起， e -美人微電腦納米美胸寶利用磁頻波原理，模擬神經系統同等方式的磁頻波與生物電流刺激，促進卵細胞荷爾蒙成長，使胸部重新發育，達到自然豐滿效果。( 3 ) verifies the voltage wave, electrical current vuive and output power wave of asteroidal magneto, and the veracity of parameters by a series of experiments. the experimental result demonstrates that the error is less than 10 % between theoretic value and actual value
（ 3 ）通過一系列實驗驗證了星形磁電機空載電壓波形、電流波形、短路電流倍數、輸出功率等波形和參數的準確性，實驗結果表明，理論與實測值相差不到10 。In the case of thin slot, taking the effect of wall thickness into account, the coupler is analyzed with the slots replaced by equivalence magnetic current using the equivalence principle. the integral equation system is fonned and calculated by the moment method
對于細長縫隙的情況，考慮了波導壁厚，利用等效原理將縫隙等效為磁流源在主波導和耦合波導中的作用，根據電磁場連續性條件建立積分方程，並用矩量法求解，進而求出耦合器的散射參數。The innovation in this paper is list below ( 1 ) use rectangle - shape pipeline so that the inducing electromotive force could be enhanced ; ( 2 ) use alternating current whose frequency is adjustable to induce the magnetic ; ( 3 ) make the flowmeter intelligent by use the microprocessor ; ( 4 ) finish designing the ls flowmeter with utra - low power consumption
本文的創新之處在於採用矩形測量導管大大增加微流量條件下的感應電動勢；採用輸出頻率可調的正弦波電流作為勵磁電流達到消除50hz頻干擾和減少正交干擾的目的；利用單片機等高端現代電子產品實現了電磁流量計的高度智能化及設計出真正的超低功耗的、可用干電池長期供電的ls旋轉流量計。In this paper, the working principle of the interleaving two - transistor forward converter is analyzed in detail, and the waveforms of the switch drain - to - source voltage and transformer magnetizing current are researched in different duty cycle conditions. the simulation model is constructed and the simulation results verify the analysis
本文分析了交錯並聯雙管正激變換器的工作原理，研究了在不同占空比條件下開關管的漏源電壓和變壓器勵磁電流波形，建立了模擬模型，模擬結果證明理論分析的正確性。Carbonyl iron particles and iron - epoxy resin composite particles, which both mrs and microwave absorber are based on, were prepared by method of dropping fe ( co ) 5 to dmf in constant temperatures and of heating the solution of fe ( co ) 5 / dmf stage by stage, combining in situ composite technique
本論文採用恆溫滴加法和逐步升溫液相法熱分解合成了羰基鐵粒子，並結合原位聚合復合技術制備了羰基鐵-環氧樹脂復合粒子，然後用它們組成了磁流變液和微波吸收材料。We took the high frequency flyback converter design as an example and made a calculation model of the total loss of the high frequency flyback transformer. on basis of the caculation model combined with the systemic method of designing dc - dc converter, and the method which is base on the current shape, is presented to achieve the appropriate parameters of the flyback transformer, an optimized approach to design high frequency dc - dc converter is given in this paper. the appropriate parameters were achieved by genetic algorithm. through this method, a practical high frequency flyback
2 .在理論分析的基礎上，以優化高頻變壓器的磁芯損耗和繞組損耗為目標，以單端反激式變壓器為例建立了高頻變壓器的總損耗計算模型，在該損耗計算模型的基礎上結合從系統角度設計dc - dc變換器的方法和考慮電感電流波形對變換器設計的影響，採用一種基於遺傳演算法的高頻dc - dc變換器的優化設計方法，該優化方法實現是通過遺傳演算法計算得到設計參數的最優取值。The electric currents and the magnetic fluctuations, which cause them are, very similar in form.
電流以及產生這種電流的磁場波動在形式上極為相似。Achieving the sinusoidal waveform of magnetic flux in ac magnetic measurement by digital feedback of harmonic compensation
利用數字式諧波反饋實現交流磁測量磁通波形正弦In this paper point to point control, constant frequency control and up and down frequency control are studied, in which current lagging loop control method is used to restrict over currents. and using flux tracking method, position open loop, position close loop control system are also studied. and research results indicate that larger current ripples are restricted by means of subdividing space vectors
本文以永磁同步電動機為研究對象，分別對同步電動機的點動控制、恆頻控制以及升降頻控制進行了分析與研究，研究中採用了電流滯環控制方法，可有效地限制過電流現象；此外採用磁鏈跟蹤法對位置開環和位置閉環的步進控制系統分別進行了探討與研究，研究表明，採用矢量細分后，可有效地減小電流波動。But if we use chaotic phenomenon directly, three disadvantages exist : ( 1 ) the applied range was limited by dynamic character of the dc / dc converter system ; ( 2 ) high current fluctuation is found, and it is hard to be controlled ; ( 3 ) high output voltage fluctuation
但是利用dc / dc變換器系統本身的混沌現象來提高電路的電磁兼容性，存在著三個方面的不足： （ 1 ）應用范圍受到系統本身動力學性質的限制； （ 2 ）電路中的電流波動大，難以控制； （ 3 ）輸出電壓波動大。Second, the math model of the switched reluctance motor ( srm ) is established and its static performance is analyzed by two methods, which are the equivalent magnetic network method and the nonlinear magnetic parameter method ; the actual current and torque waveforms are given in the control of apc and ccc
其次，採用等效磁網路法和非線性磁參數法分別建立了開關磁阻電機的數學模型，對開關磁阻電機的穩態性能進行了分析，得出角度位置控制和斬波控制方式下的開關磁阻電機的電流波形及轉矩脈動波形，並對兩種方法進行了比較分析。Abstract : a simple and high - performance brushless dc generator consisting of a controlled rectifying circuit and permanent magnet square wave motor is presented
文摘:提出了一種可控整流電路，它與永磁方波電機聯合構成一種簡單、高性能的無刷直流發電機。Then the paper focuses on the design of perm square - wave motor. also the thesis processes the general design project of controller, the control program, what ' s more the hardware structure. the control strategy is researched in this paper
論文對稀土永磁方波無刷直流電動機進行了詳細的設計，介紹了控制器的總體設計方案、硬體結構、控製程序設計等內容，並對控制策略進行了研究。分享友人