磁場極矩 的英文怎麼說
中文拼音 [cíchǎngjíjǔ]
磁場極矩
英文
magnetic discharge welding- 磁 : 名詞1. [物理學] (磁性; 能吸引鐵、鎳等的性質) magnetism 2. (瓷) porcelain; china
- 場 : 場Ⅰ名詞1 (平坦的空地 多用來翻曬糧食 碾軋穀物) a level open space; threshing ground 2 [方言] (...
- 極 : i 名詞1 (頂點; 盡頭) the utmost point; extreme 2 (地球的南北兩端; 磁體的兩端; 電源或電器上電流...
- 矩 : 名詞1. (畫直角或正方形、矩形用的曲尺) carpenter's square; square2. (法度; 規則) rules; regulations 3. [物理學] moment
- 磁場 : [物理學] (傳遞運動電荷或電流之間相互作用的物理場) magnetic field
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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。The solution of the interior problem has been obtained by the fem method. ensuring the continuity of the tangential electric field across the aperture plane, the electromagnetic e and h has been gained
分別採用有限元法和矩量法分析封閉腔體和半無限空間的電磁場,在孔徑面上進行邊界條件匹配,從而得出極化雙工柵中的電磁場特性。In this application, the lorentz force generated by the interaction between the current in the wire and the geomagnetic field produces an electro - dynamic drag leading to a fast orbital decay. in this paper, we make an intensive study of the process of de - orbiting using electro - dynamic tether system. the concrete work includes : firstly, i have studied the basic principle of how to generate the electro - dynamic drag, modeled via accuracy geomagnetism, made a concrete analysis of the de - orbiting duration, the magnitude and direction of electro - dynamic drag under the action of the dipole and accurate geomagnetic models, set up a counterbalance between electro - dynamic torque and gravity gradient torque, emulate the de - orbiting process of spacecraft, and compared the change of six orbital factors and the de - orbiting duration under the action of the dipole and accurate geomagnetic models
本文對基於電動力纜繩的航天器離軌過程進行了深入研究,具體工作如下:首先,本文研究了電動力纜繩產生電動力拉力的基本原理,建立了精確地磁場模型;分別在偶極子模型和精確地磁場模型作用下,對電動力拉力的大小、方向、離軌時間及電動力纜繩傾角的大小進行了計算分析;建立了電動力力矩與纜繩系統重力梯度力矩的平衡關系;分析了電動力力矩為系統提供能量的原理;最後分別在偶極子地磁場模型和精確地磁場模型作用下,對受電動力纜繩作用的航天器的離軌過程進行模擬,分析了在不同精度地磁場模型下,航天器離軌過程中各軌道參數的變化情況,並比較了不同模型對離軌時間的影響。A polarimetric sar combines both advantage of measuring full complex scattering matrix for each resolution cell in a scene and producing two - dimensional high resolution images, and is thus playing a more and more important role in gathering the detailed information regarding the geometric and electric structures of surfaces and covers for application in both civil and military areas
極化合成孔徑雷達( sar )具有可以測量場景中每個分辨單元的全極化散射矩陣以及產生二維高分辨力圖像的兩大優點,因此無論在民用和軍用的採集地表或地面覆蓋物的物理和電磁結構信息的應用中起著越來越重要的作用。Due to 12 / 8 poles doubly salient permanent magnet motor, planar finite element method ( fea ) is applied to analyze the magnetic field inside the motor. and a series of static characteristics are investigated, such as field distribution, air gap magnetic density, field flux, inductance, static torque
針對12 / 8極永磁式雙凸極電機,採用二維平面有限元法對電機內磁場進行分析計算,研究了電機磁場分佈、氣隙磁密、繞組磁鏈、繞組電感、靜態轉矩等一系列電機靜態特性。Due to the ac stark effect, neutral atoms will undergo a dipole force from the inhomogeneous electromagnetic fields, while the dipole force acting on the atoms is proportional to the atomic dipole momentum and the gradient of light field
由於交流斯塔克效應,中性原子在非均勻電磁場中會受到的光偶極力的作用,偶極力的大小正比與原子的感生偶極矩及光場的梯度。Csm is a numeric mothed of analyzing static electric field. this paper compares the values of capacitance of different size of plate d and plate e in csm and cst mws. mom is a typical numeric method of researching high - frequency electromagnetic problems. accordingly, this paper computes input impedance of plate e and impedance matrix of traditional two element antenna array of electrically small dipoles separately in mom and cst mws, and then compares them detaily
模擬電荷法( csm - chargesimulationmethod )是研究靜電場的一種數值方法,本文比較了模擬電荷法和cstmws對cfa的d 、 e兩盤在不同尺寸下的電容的計算結果;矩量法是經典的研究高頻電磁學問題的數值方法,同時利用矩量法計算了cfa的e盤的輸入阻抗和傳統二元電小偶極子陣的阻抗矩陣,將其結果與cstmws的模擬結果比較。For these proposes, we chose electromagnetic boundary integral equation ( bie ) theory as the theoretical foundation, method of moments ( mom ) as numerical process and the multilevel fast multipole algorithm ( mlfma ) to accelerate the solving process and reduce memory requirement
為此,我們選擇了電磁場邊界積分方程( bie )理論作為理論基礎,以矩量法( mom )作為數值求解方法,並使用多層快速多極演算法( mlfma )來加速求解過程和降低存儲需求。This subject is a research about manufacturing silicon magnetic - transistor with rectangle - plank cubic construction on silicon surface by mems technology, meanwhile it also makes a experiment - research on characteristic of silicon magnetic - transistor manufactured experiment expresses that silicon magnetic - transistor with rectangle plank cubic construction which is made by mems technology owns many virtues, which are as follows : first, stronger v - i characteristic curves and higher magnetic sensitivity ( collector current magnetic sensitivity of sample can achieve to 227 % / t ), second, lower negative - temperature coefficient that is small
本課題主要研究採用mems技術在矽片上製作矩形板狀立體結構硅磁敏三極體,並對製作的硅磁敏三極體樣品基本特性進行實驗研究。實驗結果表明本課題採用mems技術設計、製作的矩形板狀立體結構的硅磁敏三極體樣品具有較理想的伏安特性曲線、具有較高的磁靈敏度(樣品集電極電流磁靈敏度可達227 / t ) 、具有負溫度系數且溫度系數較小、在磁場一定時i _ c i _ b線性關系較好等優點。分享友人