density of magnetic flux 中文意思是什麼

density of magnetic flux 解釋
磁通密度
  • density : n. 1. 稠密；濃厚。2. 【物理學】濃度；密度；比重。3. 愚鈍，昏庸。
  • of : OF ＝Old French 古法語。
  • magnetic : adj. 1. 磁（性）的；（可）磁化的。2. 吸引人心的；有魅力的。3. 催眠術的。
  • flux : n 1 流，流出；流動。2 漲潮。3 不斷的變動，波動。4 【物理學】流量，通量，電通量，磁通量。5 熔解，...
  1. The various initial distributions of magnetic helicity density and the transportation of magnetic helicity flux may lead to various evolutions of magnetic helicity density in the neutral sheet region, and could result in the formation of various magnetic structures

    不同的初始磁螺度密度分佈和磁螺度通量輸運，可以引起中性片區域磁螺度密度分佈的不同演化，從而導致具有不同拓撲位形磁結構的形成。
  2. The integral method is adopted caculate and analyze to amf three - dimension distruction which is the structure of coil type four - pole and the structure of coil type double - pole and study the size of two kind of electrode structure axial magnetic flux density distribution and its fielduniformity. the finite - element method is used simulate that eddy current has effect on amf when contact tray of douple - pole amf structure is slotted or no

    本文採用積分方法對本文設計的線圈式兩極縱向磁場觸頭結構和線圈式四級縱向磁場觸頭結構的縱向磁場三維分佈進行了計算分析。研究了電弧燃燒期間兩種觸頭結構縱向磁場強度的大小、均勻性，利用有限元法模擬線圈式兩極縱向磁場觸頭結構的觸頭盤開槽和不開槽時渦流對縱向磁場的影響。
  3. The main achievements are as follows : the theory models of defect mfl field are set up ; based on the magnetic dipole model and finite element model, the distribution of defect mfl field is simulated in the dissertation ; the component of flux density ( magnetic filed ) parallel to the surface of pipe is detected by a circumferential array of hall probes ; the factors including defect geometry parameters, defect surface angle and shape, pipe material, field intensity, vehicle velocity, background magnetization, operating pressure and remanent magnetization and so on influence the mfl signal characteristics

    採用霍爾元件作為缺陷漏磁檢測傳感器，獲得管道軸截面漏磁場切向分量的漏磁信號；研究了缺陷外形尺寸、缺陷傾角和形狀、管道材質和磁化強度、檢測儀移動速度、管道背底磁場、管內壓力和剩磁對漏磁信號的影響。提出了各通道增益放大、各路漏磁信號偏離調整、波形微分、數字濾波和平滑等漏磁信號預處理方法；分析了等空間采樣的漏磁信號轉換為等時間采樣信號的必要性，研究了漏磁信號的小波去噪方法。
  4. According to magnetic medium following the theories, such as ferromagnetics, electromagnetic field, electrodynamics and so on, and linking the characteristics of driving of giant magnetostrictive materials, a control model and driving approach, which one to one correspondence with magnetostriction, are founded. the theory analysis and experimental study demonstrate that the control accuracy of giant magnetostrictive materials can be effectively improved, if using this control model and control approach of giant magnetostriction materials on account of flux density

    通過理論分析和實驗研究表明：這種基於磁感應強度的超磁致伸縮材料的控制模型和控制方法，可有效地提高超磁致伸縮材料的控制精度；研製了具有驅動磁場和微位移感知功能的磁場與位移感知型超磁致伸微位移執行器，並提出了適用於此種執行器的設計理論和方法。
  5. Based on the analysis of the magnetic circuit, the computation expressions of the magnetic force, magnetic flux density and inductance are derived

    在磁路分析的基礎上，推導了磁力、磁通密度和電感的計算公式。
  6. By magnetic field analysis for the stage, three formulas reached : one is magnetic road magnetic force calculational formula of magnetic levitation system that except flux leakage, the second is magnetic driving force calculational formula for open magnetic road dc linear motor, the third is magnetic flux density calculational formula for dc linear motor. these formulas make reference for design, analysis and control

    本文對磁懸浮定位平臺進行了電磁場分析，推導出磁懸浮系統不計漏磁的簡單磁路、磁力計算公式和原理樣機所採用的開磁路直流直線電機推力及磁通密度計算公式，為設計、分析及控制提供參考。
  7. Finally, the wave equation of the electromagnetic field of this kind damper is derived from the maxwell ' s equation. the magnetic flux density at the boundary is assumed to be harmonic, so the analytical result of the wave equation is solved. when the rotor rotates, eddy currents flowing inside the conducting material field are caused

    最後，應用ahrens的電磁軸承簡化模型，從maxwell方程出發推導了應用於本文所述的被動式電磁阻尼器的波動方程，並用傅立葉級數把矩形磁場展開的諧變磁場作為磁場的邊界條件，通過求解波動方程得到磁場的解析解，從而計算了阻尼器對轉子的電磁力和由渦流引起的切向力產生的阻尼器附加功耗。
  8. 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。
  9. This test system can apply to two kinds of measurements. one is the automatic measurement of the core loss for the different core of the same type under the same amplitude of the magnetic flux density ; the other is the automatic measurement of the alternate magnetization curve and the core loss curve for the core

    本測試系統主要進行以下兩方面的測試，一是在同一個b _ m下對同一型號的不同電機鐵芯進行鐵損測試；二是對電機鐵芯的交流磁化曲線和鐵損曲線的自動測試。
  10. However flux leakage is really exist, calculation through formular analytic method has more error, so electromagnetic field analysis is made by using finite element method ( fem ) in ansys7. 1 / multiphysics and ansys / emag programs. typical quantities of interest in a magnetic analysis are available such as magnetic flux density, magnetic field intensity, magnetic forces, power loss and flux leakage in the system of magnetic levitation. then gain the current in the coil which control levitation gap when the stage is stable

    由於存在漏磁，用公式的解析法計算有很大的誤差，因此本文採用有限元法（ fem ）來計算磁懸浮系統磁場分佈，從而計算磁力，通過用ansys7 . 1軟體進行有限元電磁場分析計算，得到平臺穩定懸浮時電磁線圈所需電流、懸浮氣隙等控制參數，由於設計的磁懸浮系統為非軸對稱結構，採用2d磁場分析有一定的誤差，而採用3d電磁場分析更接近實際。
  11. This test system can also adjust the amplitude of the magnetic flux density. so it is easy to use and increases the degree of the test automatization

    同時，它可以對幅值磁感應強度b _ m進行自動調節，測試時簡單方便，提高了測試自動化程度。
  12. This test system can maintain the magnetic flux density ( 5 ) for sine wave automatically. so we need n ' t revise the testing data because of the distortion of the waveform

    本測試系統可以實現自動保持磁感應強度b波形為正弦形，從而避免了對測試數據還要進行波形修正的麻煩，提高了測試的精度。
  13. Our factory ' s soft ferrite made from good - quality iron oxide has merits of high permeability, high saturation magnetic flux density and low loss, and id widely used in electric and electronic sets of various kinds

    利用本公司優質氧化鐵生產的軟磁鐵氧體，具有高磁導率，高飽和磁通密度和低損耗的優點，它廣泛的用於各類電子電器整機中。
  14. And the expression of magnetic flux density b is got by making use of the relation of magnetic vector potential a and magnetic flux density b. finally, the equation of the magnetic flux lines is given by way of describing the distributing of the magnetic field

    通過求解該邊值問題得到了相應的矢量磁位a的解析表達式，然後利用矢量磁位a和磁感應強度召的關系求得了磁感應強度b的解析表達式。最後為了更直觀地描述磁場的分佈給出了相應的磁力線方程。
  15. In order to realize flux feedback control, the request of air gap flux density measurement is studied. using the 3d magnetic field analysis software, how and where to install the magnetic field sensors have been discussed. then two magnetic fields measuring methods have been chosen : the hall effects measurement and the electromagnetic induction method

    為實現磁通反饋控制，分析了懸浮磁場對磁通密度測量的要求，利用三維磁場分析軟體對磁場測量元件的安裝方式與安裝位置進行了分析，選擇了兩種磁場測量方法:霍爾效應法與電磁感應法，並分別設計了測量及信號放大、濾波電路，實現了懸浮磁場的測量。
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