磁化分佈 的英文怎麼說
中文拼音 [cíhuàfēnbù]
磁化分佈
英文
magnetization distribution-
The anomaly from any buried magnetized feature is attenuated in amplitude and spread out over a wide area.
任何埋藏磁化體產生的異常幅度會減小,分佈范圍就要擴大。Cu-fe-ni sulfides are disseminated both in the core of titaniferous iron ore and in some other rocks.
Cu-Fe-Ni硫化物星散分佈於鈦磁鐵礦核心部分以及其他幾種巖石中。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。The effect on display characteristic made by thermal deformations of the shadow mask is comprehensively investigated. by using the electron beam distribution automatic measurement system with a micro - deflective coil, a concave spot in luminance distribution can be get. it changes its position when the shadow mask changes its form
本文系統全面地分析了傳統蔭罩的各類熱變形對顯示屏特性的影響,利用本文研製的電子束亮度分佈自動測試系統,附加一個微偏轉磁場,使相鄰兩電子束打在同一顏色的熒光粉條,並形成一個亮度凹點,當蔭罩變形時,凹點位置作相應的位移,以此原理跟蹤測量凹點位移量,即可得到色純漂移動態變化曲線。Value, and the current density and intensity versus the substorm phases. moreover, the characteristics of substorm current wedge are given special attention. it is found that the density and intensity of facs reach their peak during the expansion phase, the onset of the expansion phase is triggered when imf is changed to southward from northward or the southward imf decreases, and the positions of onset are most likely to be at the edge of plasma sheet near the earth
值分佈以及場向電流強度和密度隨亞暴位相的變化,並著重分析了亞暴電流楔的特徵。結果表明,亞暴膨脹相的場向電流強度和密度都達到極大值亞暴的膨脹相是由行星際磁場轉向或南向分量變小觸發的,其起始位置很可能位於近地等離子體片內邊緣。Cu - fe - ni sulfides are disseminated both in the core of titaniferous iron ore and in some other rocks
Cu - fe - ni硫化物星散分佈於鈦磁鐵礦核心部分以及其他幾種巖石中。Abstract : based on 1 200000 aeromagnetic survey data performed in 1998, and referred to materials of geolo - gic and geochemical prospecting of the working area, this paper discusses the relationship between the characte - ristics of magnetic field, magmatic rocks, fault structure and the distribution of mineral resources, and investigates the geologic metallogenic environments, and sets up the prospecting criteria for hydrothermal and volcanic - sedimentary copper, lead, zinc, gold, iron, manganese deposits, then makes the prognosis of the prospecting potential of the working area
文摘:本文以1998年1 20萬航空磁測資料為基礎,參考地質和化探資料,對工作區磁場特徵、巖漿巖、斷裂構造與礦產分佈的關系進行探討,研究地質成礦環境,建立尋找熱液型和火山-沉積型的銅、鉛、鋅、金、鐵、錳礦找礦標志,對本區找礦遠景進行了預測。By successful solution of non - linear magnetic fields and revision of the program, we can reach following conclusions : in the computation of nonlinear magnetic fields, if iteration method is used, under - relaxation is necessary when amending the permeability distribution in soft magnetic materials ; and when < wp = 5 > calculating the equivalent current density in permanent magnets, under - relaxation is not a necessity ; when searching for permeability values by interpolation method on the demagnetization curve of soft magnetic materials, if a fixed saturation point is set, around this point an abrupt change of permeability values will be obtained ; this sudden change may cause a little problem in the smoothness of magnetic field distribution ; because the magnetic circuits of microwave tubes are too complicated, in the author ' s view, to describe the working state of a magnet system, the working points of magnets can not do it properly but average energy production of magnets will serve ; as to indicate the quality of a magnet system design for microwave tubes, the efficiency of magnetic energy utilization will be a very good criterion
由此得出結論,在非線性磁場計算中:採用迭代法的情況下,在各迭代循環之間進行磁導率修正時,一個欠鬆弛迭代過程是必需的;對永磁體中的等效電流修正時可以不作欠鬆弛迭代;在純鐵的磁化曲線上指定某一個固定的磁感應強度為磁飽和值,會使得插值求出的磁導率在該磁飽和值附近有一突變,這一突變對計算結果中磁場分佈變化的光滑性稍有影響。在微波管磁系統設計中,由於微波管磁路比較復雜,作者認為磁體的工作點並不能很好地反映磁體的工作狀態,而採用平均磁能積為衡量磁體工作狀態的標準更加符合微波管磁系統的實際情況;要表示磁系統設計好壞的程度,則用磁能利用的效率為標準更好。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。The paper described the problem of simplified calculation of static magnetic field in the thin gap among superconductor blocks, and applied the conclusion to the designing of a actual sc flywheel system, in which that the calculating results approved be right and effective
摘要本文分析了超導體間靜磁場分佈的簡化計算問題,並將推導的結論應用於超導飛輪設計中,數值計算結果證明分析方法是正確的,應用是有效的。Against a prototype which is being produced , its three dimension end region entity model of stator is established , and with the aim of simplifying calculation , the theory of how to simplify entity model is studied , then the theory is made use of , and the end region entity model of stator is simplifi - ed ; meshing characteristics of three dimension entity model and shortcomin - gs of end region entity model of stator are studied , then meshing method of three dimension end region entity model of powerformer stator is studied as well , and the simplified entity model is meshed with this meshed model , the distribution of end region magnetic field of stator is analyzed , and the magnetic field energy and reactance of powerformer end region are calculated and compared with design value because the prototype is being produced , in this paper , stator core , gap and eddy equipment are not taken into consideration , and this has a little influence on the result , but through analysis , the result is proved to be good through the example calculation , it is known that the method of this paper is useful and through theoretic analysis , it is proved that end region
針對一臺生產中的樣機,對其建立了定子端部三維實體模型,而且為了達到簡化計算的目的,研究了如何將其簡化的理論,並應用這些理論對樣機定子端部實體模型進行了簡化;研究了三維實體模型的剖分特點和定子端部實體模型存在的缺點,在此基礎之上,研究了對簡化的powerformer定子端部三維實體模型的剖分方法,並且對簡化的實體模型進行了剖分。應用剖分的三維實體模型,用有限元法分析了powerformer定子端部的磁場分佈,計算了端部區域的磁場儲能,並利用磁場儲能計算了powerformer定子端部漏抗,將計算值與設計值進行了比較、分析。由於樣機處在設計生產階段,本文暫時沒有考慮定子鐵心、氣隙和渦流器件對端部磁場的影響,這對分析結果有一定的影響,但是仍然得到較好結果。The magnetic distribution of a - magnet is presented by analytic way and numeric simulation way. the single particle movement is studied in a - magnet and the movement rule of charged particle in ideal four poles magnetic field also is obtained. quantificational results of the incidence angle, trajectory length and the maximal distance in x direction are presented for ideal trajectory, and the equation indicates some important characters of a - magnet
論文對-磁鐵的有關物理問題進行了較為詳細的論述,從解析形式和數值模擬兩個方面給出了-磁鐵的磁場分佈,對單個粒子在-磁鐵中的運動進行了分析,利用數值求解方法研究了帶電粒子在理想四極磁場中的運動規律,提出了歸一化運動方程和理想軌道等物理概念,定量給出了消色散的入射角、軌道長度和x方向最大距離的解析表達式。2 ) the inductance transducer used to identify large wear particle is developed. the analytical theory of wear particle and detection windings are expatiated and inner magnetic distribution of inductance transducer is discussed, the geometry parameters are optimized by using genetic algorithm, and the finite element analysis method is used in the designing
2 )研製了識別大磨損顆粒的材質和測定其粒度的電感傳感器,闡述了磨損顆粒與檢測線圈的解析關系,探討了傳感器的理論基礎,分析了電感式檢測傳感器內部的磁場分佈,並應用遺傳演算法優化了傳感器幾何參數,最後進行了有限元模擬分析。The controllers have considered all sorts of imperceptible factors affecting the servo performances in a lpmsm servo system, which include the parametric uncertainties brought by the changes of the mobile mass, frictional coefficient, the thrust fluctuations aroused by the varieties of the magnetic density distributions and the time harmonic. the h state feedback controller restrains disturbances and uncertainties to keep the robust and stable performance. the ip controller, which has the ability of rapid response, is applied to satisfy the rapid performance
在分析雙環控制問題時,針對直線永磁同步電動機,仔細考慮了能使伺服系統性能變壞的各種細微因素,如:永磁同步直線電機動子質量變化、摩擦系數變化等造成的模型參數不確定性,電機運行期間存在磁密分佈變化、時間諧波等產生的推力擾動等,採用了ip速度控制器和h _狀態反饋控制器相結合構成直線伺服的內環控制器,並輔助設計了外環的pi位置控制器。From the mossbauer spectra, it can be found that the reduction of grain size can make the spectra line more widen and the decrease of hyperfine field distribution ( hfd )
對穆譜研究發現,粉末晶粒減小導致穆譜峰形寬化,內磁場分佈( hfd )減小。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。In this paper, based on analysis the distributing rule of permanent magnetic field, a novel method for dynamic tracing micro drug delivering device in alimentary canal has been proposed
本文在分析永磁體空間磁場分佈規律的基礎上,提出了利用磁定位原理實現動態跟蹤微型藥物釋放裝置在消化道運動狀態的方法。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。The equivalent magnet circuit network ( emcn ) method is based on combination between conventional mec and fem. the conventional magnet circuit method transfer the field in electrical machine into magnet circuit to analyze and calculate the parameters and performance of electrical machine. the emcn splits the magnet circuit into many elements according to the different flux distribution in the machine
等效磁網路法的思想是來源於有限元法和等效磁路法的結合,傳統的等效磁路法是把磁場轉化為磁路計算,而有限元法是把電機內部根據磁場分佈的不同,把求解區域劃分成各個單元,因此,等效磁網路法是結合兩者的優點而提出來的。Study shows finishing initial design of gun we can optimize the beam performance by adjusting magnetic field distribution, gun geometry, cathode magnetic field, magnetic field compression ratio, anode voltage, cathode emitter temperature and so forth
研究表明,完成電子槍的初始設計后,可以通過調整磁場分佈、電子槍結構、陰極磁場、陽極電壓等因素,優化電子注的性能。分享友人