磁場方向 的英文怎麼說

中文拼音 [cíchǎngfāngxiàng]
磁場方向 英文
field direction
  • 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] （...
  • 方 : Ⅰ名詞1 （方形; 方體） square 2 [數學] （乘方） involution; power 3 （方向） direction 4 （方面） ...
  • 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
  • 方向 : direction; orientation
  1. In strong fields the magnetization usually changes by rotation of the direction of magnetization.

    在強磁場中，磁化往往由於磁化方向轉向而改變。
  2. Four kinds of c / c composites with different preparation techniques were graphitized at 2400 - 2880. the relations between magneto - resistance and orientation ( the angle between surface of samples and magnetic field ), measure temperature, the intensity of magnetic field ( b ) were studied for each sample. the micro - structure and x - ray diffraction pattem were investigated too

    本論文在對制備工藝不同的四種碳/碳復合材料樣品進行2400 2880的石墨化處理后，應用ppms （ physicalpropertymeasurementsystem ）研究了測試位向（試樣某特定面和磁場方向夾角） 、測量溫度以及外加磁強對材料磁電阻特性的影響，同時研究了各試樣的微觀結構和x射線衍射譜圖。
  3. 3. the solution for the distribution of potential internal the dielectric ellipsoid has been obtained by means of ellipsoidal coordinates, and has obtainted the expression of the polarization field strength in the dielectric ellipsoid, calculated the included angle value of polarization vector and the external field vector, making programe to compute to get the relation shetch between the included angle value of polarization vector and the external field vector and we have discussed the result and hold that the direction of polarization field strength with that of the external field don ’ t always strict antiparallel

    二、討論了帶電粒子在均勻電磁場中的相對論運動規律。三、討論了在均勻電場中電介質橢球體的極化規律。證明了電介質橢球內的極化場強方向與外電場方向並非嚴格相反，只有當外電場與電介質橢球的某一主軸平行或者當橢球體三半軸的大小都相等時，極化場強方向與外電場方向才嚴格相反。
  4. In addition to pic method, the numerical computation method is used as a compensation for the study of the characteristics of electron beam. the two methods are used separately to attain the trajectory of axially - emitted electron beam in diode region and drift region, and the trajectory of radially - emitted electron beam with axial, azimuthal, as well as compounded axial and azimuthal magnetic field. three two - dimensional codes and two three - dimensional codes have been made out to compute the trajectories

    本文特點之一就是採用粒子模擬和數值計算相結合的方法進行模擬計算，分別得到了軸向發射條件下電子在二極體區域和漂移區的軌跡，徑向發射條件下電子在角向磁場、軸向磁場、角向和軸向復合磁場中電子的運動軌跡，分別編制了三個二維電子軌跡計算程序和兩個三維電子軌跡計算程序，最後將粒子模擬和數值計算得到的結果進行了對比，得到了較為滿意的結果。
  5. According to more effect, when the hore component is placed in a gradient field, at the same time the direction of the current is perpendicular to the direction of the voltage, then between the two parallel side face come out the hore voltage. when hore component is set in this kind of uni - gradient magnetic field and the electric current is unchanged, the voltage output of hore component will be proportional to the position of the hore component in the magnetic field. so we can use the hore component to measure the movement of hore component against magnetic field

    根據霍爾效應可知，置於磁場中的霍爾元件若電流方向與磁場方向垂直，則在霍爾元件垂直於磁場和電流方向的兩個側面將產生電勢，將霍爾元件置於強度隨空間位置線性變化的磁場中，且控制電流恆定，輸出就正比于霍爾元件處于磁場中的位置，因此可以用霍爾元件來測量磁場與霍爾元件間的相對位移量。
  6. A patch antenna with air holes in the substrate has been designed. the finite - difference time - domain ( fdtd ) method together with the perfectly matched layer ( pml ) boundary treatment has been used to study the performance of the antenna. it is shown that the surface waves are significiently suppressed, the frequency bandwidth is improved, the sidelobe levels are reduced and consequently the gain in the forward direction is improved by 14 db ( about 4 db higher than the value reported previously )

    設計了一種基底鉆周期圓孔結構的電磁（光子）晶體貼片天線，用fdtd方法並結合pml吸收邊界條件對該天線進行了研究，結果表明本文所設計的基底鉆孔型電磁晶體貼片天線取得了多方面的性能改善，與普通天線相比，基底中的表面波受到很大抑制，天線的帶寬增加，遠場方向圖上天線的旁瓣和背瓣被明顯削弱，向前輻射的增益由原來的12db增加到26db ，增加了14db ，比文獻上報道的gonzalo等人的研究結果提高了4db 。
  7. In view of the fact that there is often a gradient in the external magnetic field in true magnetic separation equipment, and its direction is often not identical with that of magnetic field, a formula of the magnetic force exerting on the magnetic particles is deduced and the factors influencing the magnetic force are analysed

    考慮實際磁選設備中外部磁場常有梯度，並且磁場梯度方向常與磁場方向不一致的情況，推導出了磁性礦粒所受磁力公式，分析了影響磁力的因素。
  8. 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。
  9. This paper expatiated that the mathematics models of ac motor is higher order, non - linear and closed coupling, multivariable input - output system. and introduces the principle and the algorithm of sine pulse width modulation ( spwm ), opened - loop space voltage pulse width modulation control ( svpwm ) and field oriented control ( foc ). finally, realized the control strategies of variable - frequency speed regulating using assembly and c language

    文中闡述了交流異步電機的數學模型是高階、非線性、強耦合的多變量輸入輸出系統，介紹了交流電機的正弦脈寬調制、開環電壓空間矢量的u / f控制和磁場定向控制的原理及控制演算法，並利用dsp構成控制系統，通過匯編語言和16位定點c語言混合編程的方法實現了上述的變頻調速控制策略。
  10. One can also imagine changing the orientation of the source or drain with a magnetic field, introducing an additional type of control that is not possible with a conventional fet : logic gates whose functions can be changed on the fly

    想像一下，如果可以利用磁場來改變源極與汲極的磁性方向，這就等於引進了一種新的控制方法，可以製造出運作時能切換功能的邏輯閘，這是傳統fet辦不到的。
  11. And we test how the laser ' s intensity changes with time through six kinds of cofe2o4 ionic magnetic fluid when laser has the same direction as the magnetic field ( be perpendicular to the magnetic fluid film )

    用相消法設計了測試磁光效應一一透射光強的裝置，測試了光線與外磁場方向一致（都垂直於磁性液體薄膜）的情況下，透過六種cofe 。 0 。
  12. Adopting rotor field - oriented vector control methods, through which make the stator and the rotor magnetmotive forces can be kept orthogonal all along during operation of the bldcm, combining hysteresis current modulation ' s current control advantage and space voltage vector modulation ' s torque ripple attenuation advantage, then designing a sort of bldcm hysteresis current svpwm control method

    摘要研究採用轉子磁場定向的矢量控制方法使無刷直流電動機定、轉子磁勢矢量始終保持正交，結合滯環調制電流控制和空間電壓矢量調制，設計了無刷直流電動機滯環電流svpwm控制方案。
  13. The general situation and progress of magnetic dipole theoryresearch during recent twenty years in china were introduced briefly including magnetic dipole ; linear and strip magnetic dipoles of finite lengths ; magnetic force on a magnetic particle ; the effect of magnetizing field orientation on the revelation of defect by magnetic particles ; longitudinal magnetization of rod, tube and cuboid steel ; the relationship between the slot depth in a workpiece and magnetic leakage field ; the cause of stray magnetic pattern along base apex edges of a workpiece magnetized circumferentially ; the analytic expression for the magnetic leakage fields inside and outside the slot on the cylindrical surface of a disc ; and the effect of a needle - like magnetic medium on the magnetic force between two point magnetic charges

    簡述20年來中國無損檢測中磁偶板子理論研究的概況和進展，主要介紹磁偶極子，有限長磁偶極線和極帶，磁粉顆粒的受力，磁化場方向對磁粉顯現缺陷的影響，棒料、管材和方鋼的縱向磁化，工件表面溝槽深度對其引起漏磁場的影響，周向磁化時工件底棱上的雜亂顯示成因，圓盤邊緣柱面上溝槽內外漏磁場的解析表達式和針狀磁介質對兩個點磁荷間磁力的影響等。
  14. The current estimated normalized magnetic field direction, corrected for the fields generated by the torque coils

    目前經由修正轉矩線圈產生的磁場而估計到的正規化磁場方向。
  15. By dating the rocks and noting their crystalline structure, paleomagnetists can tell which direction the magnetic field took at any given time

    通過測定巖石的年代和標示它們的水晶的結構，古磁學家能說出任何指定年代的磁場方向。
  16. Naturally, people have wondered whether pigeons might have a built - in compass - - something that would tell them about the direction of the earth ' s magnetic field

    自然，人們一直想知道信鴿是否有一種內在的指南針?一個能使其知道地球磁場方向的什麼東西。
  17. Reconnection is most efficient when the imf has a component that is directed southward ? that is, opposite to the northward direction of the earth ' s magnetic field at the dayside of the magnetosphere

    在磁層晝側，若imf有南向分量，也就是和北向的地球磁場方向相反，則磁力線重連的效率最高。
  18. According to the magnetic field produced from different direction, the contact structure is normally classified into perpendicular and axial magnetic field ( amf ). the cup - type contact structure of axial magnetic field is popularly used in domestic manufacturers

    根據所產生的磁場方向的不同，可分為橫向磁場結構和縱向磁場結構，目前國內普遍採用的是杯狀縱磁場結構。
  19. Once the field is larger than the threshold field, the molecules of liquid crystal tend to the magnetic field direction and they will align to the magnetic completely under some conditions i. e. it is saturated so it is important to calculate the threshold and saturation field

    在平衡狀態下，兩個轉矩的作用相互抵消。一旦磁場強度超過一定的閾值，液晶內部的分子將更易於沿外磁場方向的排列。一定條件下分子完全沿磁場排列，即達到飽和。
  20. According to direction of magnetic field, the touch head is divided into horizontal magnetic field structure and vertical magnetic field structure. in the paper a new type vacuum interrupter based on horizontal magnetic cup touch head was designed and the performance was researched when it was applied to the low voltage breaker

    根據所產生的磁場方向的不同，可分為橫向磁場結構和縱向磁場結構，本文設計了一種具有杯狀橫磁場觸頭結構的真空滅弧室，研究它在低壓真空斷路器中的開斷性能。
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