磁通量分佈 的英文怎麼說
中文拼音 [cítōngliángfēnbù]
磁通量分佈
英文
field flux distribution-
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。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。Induction heater is the main part of the electromagnetic induction heating, it determines the heating efficiency and power distribution. this article designs and analyzes the induction heater and magnetic flux field concentrator
感應器是電磁感應加熱的重要部分,對感應加熱的效率和能量分佈起決定性作用,磁通集中器的設計直接關繫到系統加熱效率。And the subroutine is developed to add the periodic condition in the commercial 3d fem software. 3d electromagnetic field analysis is done to analyze the magnetic flux distribution in the tfpm. base on the field analysis, the mathematical model is given
採用簡化的三維電磁場計算方法對橫向磁通永磁電機內部磁通分佈進行了研究,計算了各部分的磁通密度分佈和漏磁通的走向,得到了電機的空載漏磁系數及空載反電動勢以及主要的漏磁通分量。When the stress at the tip of crack is inflicted on the m - type ferrite particle dispersed in matrix as a second particle, not only the toughness of composites will be pro ved because of the non - elastic area produced by the particle but also the strength change of magnetic field and the stress distribution in the structural ceramics will be detected by the strength of spontaneous magnetization varying while magnetic materials being pressed or drawn
這是因為當結構陶瓷中裂紋尖端的應力作用在彌散於基體內的鐵磁體二相粒子上時,鐵磁粒子不僅在裂紋尖端周圍產生的非彈性區域使復合材料的韌性提高;而且還能利用鐵磁材料在外應力作用下自發磁化強度發生變化的性質,通過測量復合材料在應力作用下磁場強度的變化,探測出結構陶瓷中的應力分佈情況。Both of the two ways can reach fb5b standard of tdk company. the coercive force of strontium permagnetferrite can be improved when a12o3 or cr2o3 was added to caco3 - sio2 or caco3 - hbo3 multi - additives. ( 4 ) comparing with normal caco3 and sio2, the nano caco3 and sio2 improve the magnetic. for the nano caco3 and sio2 have high chemical activations and excellent distribution, the density of permagnetferrite can be improved and the sinter temperature of it can be reduced
納米caco _ 3 、 sio _ 2與普通caco _ 3 、 sio _ 2加入相比,鍶鐵氧體永磁獲得的最佳磁性能高,獲得最佳磁性能的添加量范圍變寬,即納米caco _ 3 、 sio _ 2提高了磁性能的穩定性,有利於大生產時鍶鐵氧體永磁的磁性能的穩定,對生產有重要的指導四川大學碩士論文意義;由於納米caco3 、 510 :分佈更均勻,具有高的化學活性,降低了銘鐵氧體永磁的最佳燒結溫度,提高了銘鐵氧體永磁的燒結密度,因而增大了caco3 、 510 :添加劑對銘鐵氧體永磁的改性效果。This dissertation concentrates on the difficult problems that the pipeline or pipe defects are not estimated or evaluated quantitatively, intelligently by mfl ( magnetic flux leakage ) inspection method. from the practical demand, theoretical analysis and experiments or testing, the mfl inspection technology of pipeline or pipe defects are explained, summarized in detail in the whole paper, at the same time, the relationship between the mfl field distribution, the mfl signal shape and the defect geometry or severity, the analysis of the mfl data and the compensation of influencing the relationship factors, signal feature extraction, intelligent recognition of defect parameters and so on are studied systematically
論文針對管道(鋼管)缺陷漏磁檢測定量化、智能化的難題,緊密結合檢測現場實際需要,通過理論分析和大量實驗,系統分析總結了管道(鋼管)缺陷漏磁智能檢測技術,並在缺陷漏磁場分佈以及缺陷漏磁信號與缺陷外形參數間的關系、缺陷漏磁信號分析、漏磁信號影響因素補償、缺陷漏磁場波形特徵提取和缺陷外形尺寸定量識別等方面進行了深入研究,主要成果和創新如下:引出磁偶極子模型近似分析常見缺陷漏磁場,針對磁偶極子模型的不足,將有限元方法應用到缺陷漏磁場分析,實現了常見管道樣本缺陷漏磁場的模擬。By calculating the feynman diagram in rtf, we find that when taking into account both the thermal photon emission, absorption and the virtual photon exchange processes, the infrared divergences at zero and finite temperature can be cancelled at the same time. the full quantum calculation results for soft photon radiation coincide completely with the poisson distribution obtained in the semiclassical approximation ( the coupling of the classical current and quantized field )
通過實時溫度場論下的費曼圖計算,我們得到:將實光子的發射、吸收,虛光子的交換過程同時考慮時,零溫場論中出現的和由溫度效應引起的紅外發散都能得到消除;並且完全量子場論下的軟光子輻射幾率與半經典近似下(經典的電流和量子化的電磁場之間的耦合)得到的泊松分佈結果完全一致。A coherent electromagnetic pulse in the range between the far - infrared and microwave region is used as a detection source. the amplitude of the wave is recorded by electro - optical or photoconductive sampling. after fast fourier transform, the amplitude and phase of the wave is given, then the complex refractive index standing for the absorption and dispersion of the material in thz region is extracted
Thz ( 10 ~ ( 12 ) hz )時域光譜技術是20世紀90年代發展起來的一種新型的光譜測量技術,它使用頻率介於遠紅外和微波之間的相干電磁輻射脈沖作為探測源,利用電光取樣或光電導取樣的方法直接記錄thz輻射電場的振幅時間波形,通過傅立葉變換得到測量信號振幅和相位的光譜分佈,進而獲得材料在thz波段的復介電常數,即色散及吸收等信息。Further measurements for the deposited films indicate that the appearance and the deposition rate of the films also vary. after we simulate the magnetic field in such case with c program, these variations are owed to distributed change of magnetic field near the target surface and in the discharging space, which can influence the motion of charged particles in the plasma obviously
進一步對沉積薄膜的測量表明,薄膜的沉積速率等發生了變化,通過對空間磁場進行模擬計算發現,由於空間外加的縱向磁場引起了放電空間中以及靶面附近磁場分佈的改變,影響了等離子體中帶電粒子的運動並最終導致了上述變化。By means of experiment the distribution of the non - uniformed magnetization of the magnetic ring of permanent magnetic bearing was measured, and the influence of magnet clearance on non - uniformed magnetization was analyzed
摘要通過試驗測量了永磁軸承磁環不均勻磁化的分佈,分析了磁體間隙對不均勻磁化的影響。The contact design provides two areas with nearly the same axial magnetic flux density distribution ( by amount ), i. e. two areas with equal conditions are given
該觸頭設計提供了兩個縱向磁通量密度分佈(數值上)基本相同的區域,也就是說,給出了兩個條件相同的觸頭區域。Magnetic anomaly detection is a kind of magnetic technology of target - detection. it is developed with the progress of magnetic sensors, which is based on the phenomena that ferrous objects disturbs the magnetic lines of force of the earth. so we can gain the neccesary informatin of the target through processing the data of the magnetic anomaly signatures. this technology has a wide perspective in the future. this paper will study the technoly of mad through a lot of experiment. the platform for the experiment is made
本論文通過大量實驗對磁異信號目標探測技術進行了研究,研製了磁異信號目標探測技術試驗平臺,利用amr磁阻傳感器開發了提取磁異信號特徵量?磁梯度計,並基於磁場梯度計通過實驗對模擬磁性目標的磁異常場的分佈進行了研究,用圖示法將其分佈特徵表現出來,發現了磁異信號測量的最佳角度,並給出了理論分析和結論。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。分享友人