磁場軸線 的英文怎麼說
中文拼音 [cíchǎngzhóuxiàn]
磁場軸線
英文
magnetic axis- 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] (...
- 軸 : 軸Ⅰ名詞1. (圓柱形的零件) axle; shaft 2. (對稱部分的直線) axis 3. (圓柱形的纏繞器物) roller; spool Ⅱ量詞(用於纏在軸上的線以及裝裱帶軸子的字畫)
- 線 : 名詞1 (用絲、棉、金屬等製成的細長的東西) thread; string; wire 2 [數學] (一個點任意移動所構成的...
- 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
- 軸線 : 1 [機械工程] axis; axle; [地質學] axial trace; axial cord; axis shaft line; shaft line 2 [紡織] s...
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Birds and compasses know north from south because, like a giant bar magnet, the earth ' s magnetic field has two poles that line up closely with the planet ' s axis of rotation
候鳥與指北針都知道何為北方、何為南方,因為地球就像一條巨型磁鐵棒,它的磁場有兩極,且這兩個地磁的磁場線和地球的自轉軸非常接近。According to biot - savart law, the general expression of magnetic field distribution generated by circular current in space has been calculated in this paper, which further discusses the magnetic field in the plane, the central axis and the far space
摘要直接由畢奧薩伐爾定律的計算公式,在更為普遍的情況下,計算出了圓形線電流在全空間的磁場分佈,並進一步討論了其在中心軸線上、平面內及遠區的磁感應強度。In the anistropic magnetic medium under the condition of magnetic permeability 11unequal to 33, the magnetic field on axis line of current - carrying coil and that inside current - carrying solenoid can be calculated by applying biot - savart law of that medium. as the condition of their service is restricted, it is necessary to derive the magnetic field on axial line of current - carrying coil and that inside current - carrying solenod under more general condition of 11unequal to 33. on the basis of the magnetic field on axial line of current - carrying coil in anisotropic magnetic medium under the derived condition of 11unequal to 33, the authors obtain the magnetic field on axial line of current - carrying solenoid in anisotropic magnetic medium under general condition of 11unequal to 33. the result shows a wider applicable coverage
利用畢奧-薩伐爾定律,並在磁導率11 = 33的條件下,可求出各向異性磁介質中載流圓線圈軸線上的磁場,以及載流直螺線管內部的磁場.顯然,其使用條件受到限制.為此,有必要導出在11 33的更一般情況下,各向異性磁介質中載流圓線圈軸線上磁場和載流直螺線管內部的磁場.在已導出11 33及各向異性磁介質中載流圓線圈軸線上磁場的基礎上,求出一般情況下各向異性磁介質中載流圓線圈軸線上的磁場,使其結果適用范圍更廣The tm mode dispersion equation of the coaxial bwo in the infinite guiding - magnetic field is derived and solved numerically. the dispersion curve, operating frequency, and the growth rate are obtained
採用線性理論推導了無窮大引導磁場下的同軸tm模式色散關系式,並編程數值求解了一定條件下的色散曲線、時間增長率、空間增長率。Then the eigenequations were obtained by using the recursive relations among their coefficients
利用電磁場的系數遞推關系,進一步推出了此種同軸線的特徵方程。Below are the work and results of the dissertation : 1. analytical solution to the eddy - current transducer with ferrite core according to the practical eddy - current transducer used in eddy - current not, the analytical model described by a solenoid coil with a coaxial cylindrical ferrite core of finite length " is established
論文的主要工作和結論概括如下:一、渦流傳感器電磁場解析解根據渦流無損檢測中實際使用的放置式線圈傳感器,建立了含有共軸有限長磁芯的通電圓柱線圈電磁場分析模型。A linear theory of rbwo with inner - slot coaxial structure is analyzed detailedly, and the equation of dispersive relation is deduced and computered numerically. 4. particle simulation is used in rbwo respective with coaxial and partial structure. in the simulation, the output parameters of rbwo such as phasespace, contour, vector, voltage, current, output power, interaction efficiency and microwave radiation
4 .對同軸和偏心返波管分別進行了粒子模擬,通過改變電壓、電流、電子注位置、磁場等參數來觀察返波管加了內開槽前後相位空間、等位線、矢量、電壓、電流、輸出功率、工作頻率的變化。It is found from the experiment that under the conditions of peak magnetic field of 0. 57t, beam pulse fwhm ( full width of half maximum ) of 44ns, a microwave radiation pulse with fwhm 25ns and whole width of 35ns is produced, when the intensity of the guiding magnetic field rises, the peak microwave power changes little but the width of the pulse reduces. the a - k gap also has obvious influence on the microwave radiation, the stable and higher microwave output is obtained under suitable gap
實驗中還發現,在峰值磁場0 . 57t和束流半高寬44ns情況下,得到了25ns半高寬和35ns底寬的微波脈沖信號,隨著導引磁場增加,微波信號幅值基本不變,但國防科學技術大學研究生院學位論文是微波脈沖寬度會逐步減少;實驗中還發現磁場線圈位置有一定的軸向調節范圍,說明在磁場軸向分佈的一定變化范圍內,器件都可以正常工作,這對以後的永磁場系統導引的微波實驗有利。First, we make the basic need of magnetic circuit clearly, present the theory formulation for permanent magnetic circuit of radial polarization using the method of analyzing the theory of magnetic circuit of axis polarization, and program the calculational programme to simulate the magnetic field of magnetic circuit applying finite difference method. then we continue to study using the adult soft of femm of calculation magnetic circuit magnetic field, consider many factors affecting it, get a great lot of data and curves, give some better magnetic circuit structures for reference at our laboratory. in the end, with the condition of our lab, we measure the permanent magnetic circuit completed, then the experimental and calculational simulation results have been discussed and analyzed
本文首先闡述了磁路計算及設計的基本要求,利用分析軸向永磁體磁路理論的方法,推導出了求解徑向磁化磁路的理論方程,應用有限差分法,編制了計算程序,對磁路的磁場進行了模擬;然後利用比較成熟的計算磁路磁場軟體femm作深入研究,考慮了影響磁路磁場的多種因素,得出了大量數據和曲線,給出了幾組比較合理的磁路結構,可供實驗的參考;最後,結合本實驗室條件,對現有永磁體磁路進行了冷測,將測試結果和計算模擬結果作了比較,並進行了討論和分析。A new bearingless induction motor system with five degrees of freedom is developed including a bearingless induction motor and a permanent magnet biased axial - radial magnetic bearing. the control strategy of bearingless induction motor based on air - gap flux orientation is introduced, and the decentralization pid control is used to maintain equal air in the five degrees of freedom. the digital controller guarantees rotor suspension steadily, and the speed of rotor reaches 3000 rpm
闡述了無軸承異步電機的氣隙磁場定向控制策略,採用該非線性控制方法能使無軸承異步電機解耦成轉矩子系統和磁懸浮徑向力子系統,從而可以採用經典pid對這兩個獨立的子系統進行控制,首次實現了系統在0 3000rpm轉速范圍內的穩定懸浮。By using the method of separation of variables, a recursive formula was derived for the electromagnetic fields in a circular coaxial cable with a radial conductor plate and filled with multilayered homogeneous isotropic media, and the relationship between the first and the nth layers of the electromagnetic fields was determined
摘要採用分離變量方法,推導了有徑向導體板、填充均勻的多層各向同性介質的同軸線各層電磁場之間的遞推關系,得到了第1層與第n層介質中電磁場的關系方程。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。The magnetically insulated transmission line oscillator ( milo ) is a coaxial crossed - field device. there exists great importance in the investigation either into the fundamental physics related to the beam - wave interaction or into the rule of electron movement in this device
磁絕緣線振蕩器( milo )是一種同軸正交場器件,深入研究其內部的電子運動規律和束波相互作用的物理機制具有重要意義。Abstract : the distribution of axial magnetic field around the centre of helmholtz " coils has been thoroughly analyzed, a numerical method for estimation of the homogeneity of coils " magnetic field had been found, and the homogeneity curve is given
文摘:分析了亥姆霍茲線圈中心區域軸向磁場的分佈,找到了一種估計線圈磁場均勻區的計算方法,並給出了均勻區分佈曲線圖。Experiments have demonstrated that, under the condition of constant temperature ( 20 ), the frequency error of double - frequency laser interferometer with two longitudinal modes could be controlled within 10 " 9 even with conditions such as with cool or hot air blowing, it can still be kept within 10 " 7. self - organised fuzzy control methods can be realised in a single - chip processor which contains fuzzy optimisation and self - organisation functions. the above - mentioned system possesses the following advantages : simple
/ znl (式中c為光速, l為諧振腔長, n為空氣折射率,其值約790mhz ) ,原理上對目前可能要求的測量速度都能滿足;它發出的光為一對互相垂直的線偏振光,與塞曼型雙頻激光干涉儀相比,它不用外加軸向磁場及1 / 4波片,因此結構簡單,造價低廉。Homogeneity of magnetic field of three parallel coaxial circular coils
平行共軸三線圈磁場均勻性分析分享友人