標量磁位 的英文怎麼說

中文拼音 [biāoliángcíwèi]
標量磁位 英文
scalar magnetic potential
  • 標 : Ⅰ名詞1 [書面語] （樹梢） treetop; the tip of a tree2 （枝節或表面） symptom; outside appearance; ...
  • 量 : 量動1. （度量） measure 2. （估量） estimate; size up
  • 磁 : 名詞1. [物理學] （磁性; 能吸引鐵、鎳等的性質） magnetism 2. （瓷） porcelain; china
  • 位 : Ⅰ名詞1 （所在或所佔的地方） place; location 2 （職位; 地位） position; post; status 3 （特指皇帝...
  1. Firstly, in spherical coordinate system, the sovp formulation for the time - harmonic electromagnetic fields of the current dipole in conductive infinite - space is derived, using reciprocity theorem and transforming relations between special functions. then, selecting appropriate coordinate system, using superposition principle, the boundary - value problem of modified magnetic vector potential on the problem of a time - harmonic current dipole in spherical conductor is solved and analytical solution is obtained. finally, by means of the addition formulas of legendre polynomial and spherical harmonics function of degree n and order 1, the analytical solution in spherical coordinate system specially located is transformed into that in spherical coordinate system arbitrarily located

    首先利用特殊函數間的轉化關系和互易定理推導得到了無限大導體空間中球坐標下時諧電流元電磁場的二階矢量位形式：然後利用疊加原理，選擇合適坐標系，求解了導體球中時諧電流元的修正磁矢量位邊值問題，得到了問題的解析解；最後依據不同坐標系下電磁場解的轉化原理，藉助勒讓德多項式和n次1階球諧函數的加法公式，將坐標系特殊安放時的電磁場解析解變換到坐標系一般安放時的解析解，給出了球內電場和球外磁場的並矢格林函數。
  2. The addition formula of spherical harmonics function of degree n and order 1 is derived using the relations between coordinate varieties after coordinate rotating and the property of the associated legendre polynomial. the relations among the magnetic vector potential, the modified magnetic vector potential and the second - order vector potential ( sovp ) are shown going forward one by one. it is explained that the solutions of electromagnetic fields in different coordinate systems can be transformed and an example having analytical solution is given

    利用坐標旋轉后球坐標變量間的關系和連帶勒讓德多項式的性質推導得到了n次1階球諧函數的加法公式；以遞進的方式說明磁矢量位、修正磁矢量位與二階矢量位的關系，寫出了引入二階矢量位的過程；以時諧場矢量邊值問題為例，闡明了不同坐標系下電磁場解的相互轉化原理，給出了一個解析解的轉化例子；在球坐標下，引入了較球矢量波函數更普遍的兩類矢量函數，給出了其在球面上的正交關系。
  3. Next, in order to comprehand the electromagnetic characteristics and the dynamic characteristics of the new type of magnetic micromotors, the dissertation applied the concept of the magnetic scarlar potential of the irrotational magnetic fields and set up the mathmatic model for the inner magnetic field of the new type of motors from the basic equations and the boundary conditions of the motor magnetic field. oh the basis of the mathmatic model, the dissertation analized the various qualities of the magnetic field of the air gap between the rotor and the stator and gave a detailed calculation of the air gap ' s magnetic potential, magnetic field intensity, magnetic induction, the shape of the magnetic scarlar potential level surface, the distribution of the magnetic circuit, the magnetic induction the self - inductance and the mutual inductance of the coils

    其次，為全面了解這種新型電磁電機的電磁特性和動力特性，本文從電機磁場的基本方程及其邊界條件出發，應用無旋磁場的標量磁位概念，建立了端面搖擺式電磁微電機內部磁場的數學模型，並以此為基礎，詳細分析了電機氣隙磁場的各方面性質，對氣隙磁場的磁標位、磁場強度、磁感應強度、等磁位面形狀、電機工作磁路的分佈、電機的工作磁通量以及激勵繞組的自感和相互之間的互感進行了詳細的分析計算。
  4. Based on an analysis of the major factors affecting the quality of data obtained in aeroelectromagnetic survey, this paper has put forward zero horizontal drift correction methods such as field value standardization and phase check and correction, studied and developed a suite of techniques suited to data - processing and graphical representation for aeroelectromagnetic method

    摘要在分析探討影響航空電磁測量數據質理主要因素的基礎上，提出了場值標定，相位校驗改正等零水平漂移改正方法，研究開發了一套適合航空電磁法數據處理與圖示的方法技術。
  5. Preliminary results indicate that the standard and low electromagnetic interaction packages in geant4 give almost identical simulation on emc, the detector performance, such as energy / position resolution, satisfies requirements of physics design. different behaviors of hadrons and electrons in emc will be helpful for particle discrimination, such as e / discrimination. the complete and perfect offline simulation software will play an important role in physics study at bes

    初步結果顯示:標準和低能兩種電磁相互作用模擬軟體包在bes能區給出了相同的模擬結果;探測器的運行指標，如能量解析度和位置解析度，滿足物理設計指標;強子和電子在emc中的不同行為將會給進一步的粒子鑒別（如e /鑒別）提供幫助;完整而完善的離線模擬軟體將在今後bes上的物理研究發揮重要作用。
  6. Using piezoresistive accelerometers and magnetoresistance sensors measure the dynamic acceleration and geomagnetic field and through avr mcu software to calculate the attitude angular and azimuth. the fact of affecting the module is discussed in detail in this report and put forward the resolving scheme of key technology of digital filter, linear compensation, temperature compensation and magnetic field adjustment. the digital module has advantages of small size, light weight, low conception, high accuracy, all solid state and high reliability

    本課題採用壓阻式加速度計和磁阻傳感器分別測量重力加速度和地磁場，通過avrmcu軟體解算出姿態角和方位角，課題詳細分析了影響模塊性能指標的因素，就數字濾波、線性補償、溫度補償、磁場修正等關鍵的技術問題提出了可行的解決方案，研製的數字化模塊具有體積小、重量輕、低功耗、精度高、全固態、高可靠等特點，所有性能指標均滿足設計要求，為姿態角測量提供了有效的手段。
  7. This system makes a breakthrough of traditional incremental motion control theories. it breaks the strict ambit between continuum and discrete, speed and position, rotation and step, the space vectors of stator magnetic field and rotor magnetic field are selected as the main control objects, incremental motion control and motion control are combined organically to make incremental motion control develop to large capability, high efficiency, high precision

    這其中的交流步進控制理論打破了傳統的增量運動控制思想，打破了連續與離散，速度與位置，旋轉和步進的嚴格界限，以定、轉子磁場空間矢量為主要控制目標，將增量控制與運動控制有機的結合起來，使增量控制向大容量、高效率、高精度方向發展。
  8. With the widespread and profound impacts of global change on the natural elements and progress, the society and economy, and even the human activities, the study of global change has become one of the most active frontiers in the current earth science research field. especially, climatic and environmental changes of holocene and human history is a very important time scale of the study of global change. however, the geographic surroundings and the natural environment of the southern margin of tarim basin, which lies in the hinterland of eurasia continent, are so special that it is difficult to obtain the proxies indicating its environmental evolution

    在多年來前人研究成果的基礎上，本文通過尼雅剖面年代解析度可達10a的沉積物質量磁化率、碳酸鹽碳同位素、粒度等氣候替代性指標及約特干剖面的地球化學元素、孢粉等氣候指標信息的結果分析，並結合達木溝、塔格勒等剖面的成果及相關資料，得出以下結論： （ 1 ） 、南疆塔里木盆地南緣中全新世6 . 7 3 . 0kab . p .以氣候溫暖偏乾的荒漠環境為總體特徵。
  9. 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。
  10. It also builds the mathematic model of all section of vscf ac exited wind power generation system on a - b - b and d - q coordinate system by the coordinate commutation technology. the thesis gives the characteristics of torque, active power, reactive power and the steady - state analysis of it. it proves that the capability of wind generator is determined to slip, the amplitude and phase of rotor voltage, the phase dispatch between stator voltage and rotor voltage

    並分析了交流勵磁風力發電機作變速恆頻運行時的工作原理，闡述了與同步發電機、異步發電機的不同之處，分析了其能量平衡關系，在坐標變換技術的幫助下，詳細推導了交流勵磁發電機在a - b - c坐標系和d - q坐標系下的數學模型，分析並模擬了其有功和無功特性、轉矩和功率調節特性、穩態運行和機械特性，證明了發電機的性能由轉差率、轉子電壓的相位和幅值、定轉子電壓相位差所決定的。
  11. By means of the step control of pmsm, it can offer accurate and reliable position control for the angle travel terminal equipment. step angle is small, torque is large and inertia is small. this system will promote the technical guideline and control accuracy of the flow and pressure control

    利用永磁同步電動機的步進控制，為角行程終端設備提供準確可靠的定位控制，步進角小、轉矩大、慣量小，將使流量及壓力控制達到高的技術指標和控制精度。
  12. Quantification of mitral regurgitation in children by velocity - encoded cine mr imaging

    磁共振相位編碼速度標識技術在兒童二尖瓣反流定量分析中應用
  13. This strategy has many advantages : solving the problems that the system is unsteady under super - synchronization ; improving power factor of stator ( it is unity relative to that of rotor ) ; no rotor position sensor and no initial position measurement, easily building up doubly fed speed adjustment system with speed sensorless because adjusting speed is taken in the rotor coordinate and rotor current vector fixing is implemented

    該方案由於引入了定子電流勵磁分量的閉環控制，使系統同時具有轉速和勵磁調節兩個調節通道，具有如下優點：一、解決了超同步工作工況不穩定的問題；二、提高了定子側的功率因數（與轉子側功率因數為1相比） 。三、由於速度調節在轉子坐標系下進行，並以轉子電流矢量定向，所以無須轉子位置傳感器，也不用檢測初始位置，易於組成無速度傳感器雙饋調速系統。
  14. The main module of sensorless pmsm vector control such as voltage sensing, current sensing, smo rotor position estimation, speed calculation, generation of sine and cosine, vector coordinate transformation, pi regulators, svpwm vector modulation are all accomplished in the pwm interrupt service routines

    永磁同步電機無位置傳感器矢量控制的主要模塊如電壓采樣、電流采樣、滑模轉子位置估算、速度計算、正餘弦值生成、矢量坐標變換、比例積分調節器、空間電壓矢量脈寬調制等都是在pwm中斷服務子程序中完成。
  15. For the bldcm which has a neither sinusoidal nor trapezoidal back - emf, that is, for a general shape back - emf bldcm, this dissertation proposes a novel id = 0 vector control method. by this method, the iq for a constant torque to produce is calculated through coordinate transformation, and the reference iq is tracked by vector control in the dq0 frame

    對于實際反電動勢波形既非正弦又非梯形波的無刷直流電動機，提出一種新型的任意波形反電動勢無刷直流電動機的i _ d = 0矢量控制方法，通過坐標變換浙江大學博士學位佑文摘要求解產生恆定電磁轉矩所需的q軸電流，並在dqo坐標系下通過矢量控制對q軸參考電流進行跟蹤。
  16. Abstract : the original mineral of dading iron mine was processed by the technique which included pre - classification, dry magnetic separation to discard dirt, magnetic separation of the coarsely ground ore, scondary grinding and secondary magntic separation of the rougher concentrate, thus raising the processing quantity of the crude ore, reducing the grinding cost, with the grade of iron concentrate 65. 54 %, the recovery of iron 94. 11 %

    文摘:採用預先分級、乾式磁選拋廢、粗磨磁選、粗精礦再磨再磁選的工藝流程處理大頂鐵礦原生礦，提高了原礦處理量，降低了磨礦成本，獲得鐵精礦品位65 . 54 、鐵回收率94 . 11的技術指標
  17. Incremental - coding devices is used as position feedback device, meanwhile, magnetic field sensor ad22151 is used as position sensor to demarcate movement origin, which have features of the high sensitivity, small size, non - contact

    位置反饋元件採用增量式光電編碼器，同時鉛門的零點標定採用了磁傳感器ad22151 ，具有靈敏度高、體積小、非接觸等特點。
  18. Secondly, some recently research results and some unsolved problems about the magnetic vector potential a, electric scalar potential and magnetic scalar potential of the transient eddy current formulation are deeply analyzed in the paper and the magnetic vector potential a is chosen to calculate the specified physical model discussed in this paper

    其次，概括地分析了國內外對向量磁位（ ? ） 、標量電位、標量磁位的研究現狀及存在的問題，在此基礎上，確定用向量磁位（ ? ）來計算永磁操動機構的物理模型，並證明在二維非線性情況下，庫侖規范自然滿足。
  19. Model dcw light - spot vectormeter, designed to from a complete set with a dynamic balabcing tester, is served as a display meter for phases and ampiltudes of dynamic unbalancing quantites. the meter is composed of two sets of measuring mechanisms in moving coil system, and is also put to use lightspot indication as well as polar scale

    Dcw型光點矢量表是供動平衡試驗機配套作為動態不平衡量的相位和幅值的顯示儀表，它是由2組磁電系測量機構組成並採用光點指示及極坐標標度。
  20. A modified peec model was introduced, in which the integral definition of vector magnetic potential and the lorentz gauge are used to expand the integral equation to derive the peec

    摘要提出了一種改進的部分元等效電路模型，它以矢量磁位的積分表達式和洛侖茲規范代替了矢量磁位和標量電位的積分表達式，對積分方程進行展開。
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