磁場波動 的英文怎麼說

中文拼音 [cíchǎngbōdòng]
磁場波動 英文
magnetic field fluctuation
  • 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] （...
  • 波 : Ⅰ名詞1 （波浪） wave 2 [物理學] （振動傳播的過程） wave 3 （意外變化） an unexpected turn of even...
  • 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
  • 波動 : 1 （不穩定） undulate; fluctuate; unsettle; surge; rise and fall 2 [物理學] wave （motion）; wave...
  1. As a result, the electromagnetic field intensity is changed accordingly and fluctuating current in the damper coil is created. damping force is mostly produced because of the phase difference between fluctuating current and displacement of rotor. the formulas of fluctuating current and damping coefficient are deduced theoretically, and the calculated results are consistent with the experimental results

    通過分析發現電磁阻尼器線圈內由於轉子渦動時變化的磁場而產生的波動電流與轉子位移間的相位差是產生阻尼的主要原因，推導了波動電流、阻尼系數的計算公式，並通過實驗展示了被動式電磁阻尼器的阻尼效應。
  2. Through cell ammeter and armature magnetomotive force, we qualitativly analyze that harmonic magnetiv field has influence on motor operating performance, it can ensure whether slot coordination suits well or not

    通過槽電流表和槽磁動勢圖定性地分析電機的諧波磁場對電機運行性能的影響，由此確定電機所選槽配合是否合適。
  3. If the moving fluid in a newborn neutron star also transfers a tenth of its kinetic energy to the magnetic field, then the field would grow stronger than 1015 gauss, which is more than 1, 000 times as strong as the fields of most radio pulsars

    如果在新生中子星里的流體，也把10 %的動能轉變成磁場的話，磁場強度會上漲到超過1015高斯，這是大多數無線電波霎所帶磁場強度的1000倍以上。
  4. Topics include : planets, planet formation ; stars, the sun, " normal " stars, star formation ; stellar evolution, supernovae, compact objects ( white dwarfs, neutron stars, and black holes ), plusars, binary x - ray sources ; star clusters, globular and open clusters ; interstellar medium, gas, dust, magnetic fields, cosmic rays ; distance ladder ; galaxies, normal and active galaxies, jets ; gravitational lensing ; large scaling structure ; newtonian cosmology, dynamical expansion and thermal history of the universe ; cosmic microwave background radiation ; big - bang nucleosynthesis

    課程的主題包含了：行星、行星形成；恆星、太陽、正常的恆星、恆星形成；恆星演化、超新星、緻密天體（白矮星、中子星及黑洞） 、波霎、雙x -射線源；星團、球狀及疏散星團；星際介質、氣體、塵埃、磁場、宇宙射線；距離階梯；星系、正常及活躍星系、噴流；重力透鏡；大尺度結構；牛頓宇宙學、宇宙的動力膨脹及溫度發展歷史；宇宙背景微波輻射；大霹靂核合成。
  5. The magnetic field requirement of the sth harmonic gyroklystrons over cyclotron resonance masers ( crms ) would be reduced by a factor of s relative to operate on the fundamental cyclotron frequency, so that the amplifier could be applied to highly mobile millimeter wave radar systems

    基於電子迴旋諧振脈塞原理工作的諧波迴旋速調放大器的工作磁場強度是基波的1 / s （ s是諧波數） ，因而能適用於機動性較高的軍用毫米波雷達系統。
  6. As novel concept actuators, ultrasonic motors have been attracting intensive attention at home and abroad with their outstanding features such as low speed and high torque, large holding torque, rapid response, light weight and compact sizes, simple structure, and no magnetic disturbance, etc. traveling wave ultrasonic motors are especially attracting researchers ’ interest for their good controllability and flexible constructions

    超聲波馬達作為一種全新的驅動器，以低速大轉矩、靜態保持力矩大、響應速度快、體積重量小、結構簡單以及無磁場干擾等優點受到國內外的廣泛關注，其中行波超聲波馬達以其控制性能良好和結構靈活等優點尤為引人矚目。
  7. The air - gap harmonic magnetic field and its effect on the iron losses are analyzed ; then the design rules to reduce the harmonics and the iron losses are presented ; at last, the sine or approximate sine air - gap magnetic field is constructed with non - homogenous air - gap, and the non - homogeneous air - gap function is presented

    第三部分對永磁同步電動機的氣隙磁場進行了理論分析和電磁場數值計算，分析了永磁同步電動機氣隙諧波磁場的特點和不同轉子結構尺寸對氣隙諧波的影響，提出了削弱氣隙諧波磁場減小損耗的措施。
  8. Like the crests and troughs in water waves, the oscillating electric and magnetic fields constitute an em wave

    電磁波是電場和磁場的震動。和水波一樣，這些震動會產生波峰和波谷。
  9. For unmagnetized, relativistic and hot ion plasmas, the ion - acoustic waves can be described by the kadomtsev - petviashvili ( kp ) equation ( ( ut + auux + buxxx ) x + duyy = 0 ). it suggests that the nonlinear ion - acoustic solitary waves in a relativistic hot ion plasma are stable even there are some higher order transverse perturbations. there are only compressive solitary waves in the relativistic hot ion plasmas which has been vertified analytically

    在低階近似下，無磁場相對論熱離子等離子體可由kp方程（ （ u _ t + auu _ （ x ） + bu _ （ xxx ） _ x + cu _ （ yy ） = 0 ）來描述，相對論熱離子等離子中的非線性離子聲孤波在高階橫向擾動下是穩定的，且在相對論熱離子等離子體中僅存在壓縮型孤波
  10. On the aspect of the dynamic character, the electrocircuit model of the motor is being realized on the pspice environment. the transient character of the pmlsm under the sinusoidal power is reached using the pspice model at circuit level, the results are compared with those using time - stepping fem

    從電機的動態性能方面：建立了電機的pspice模型，在pspice環境下對電機進行正弦波驅動下瞬態特性的模擬，並與以電磁場分析為基礎的時步有限元電機的動態模擬分析進行了比較。
  11. As novel concept actuators, ultrasonic motors have been attracting intensive attention at home and abroad with their outstanding features such as low speed and high torque, large holding torque, rapid response, light weight and compact sizes, simple structure, and no magnetic disturbance, etc, and which have been applied to many fields

    超聲波電機作為一種全新的驅動器，以低速大轉矩、大靜態保持力矩、響應速度快、體積重量小、結構簡單以及無磁場干擾等優點受到國內外的廣泛關注，並在眾多領域得到了應用。其中駐波超聲波電機具有驅動和控制電路簡單，轉速平穩，波動較小等突出優點。
  12. Electron gun is the foremost parts of twt, it can produce electron beam with a certain shape and current, in order to guarantee the reliability and security of work, it ’ s design have to meet to the requirement not only of electric parameter, but also all kinds of subsidiary characteristics such as filament pyrogenation efficiency, warm up time, shape size, pole space capacitance and the ability to be able to bear the press and all kinds of rigorous run conditions such as high temperature, high humidity, low air pressure, strong vibration and great strike

    由於行波管的大功率和高頻率等特性，目前還沒有任何其他的器件可以代替。行波管是應用高頻電磁場與電子注進行互作用的機理進行工作的，而電子槍是行波管中產生電子注並使它成型的基本部件，電子槍的結構設計決定了槍體自身必須具有良好的抗振可靠性，否則結構發生共振或振動位移過量，就會導致行波管的失效。因此對行波管電子槍的研究具有非常重要的意義。
  13. When investigating the new development of the electromagnetic field theory, we think that the modern electromagnetic field theory is a macroscopic electrodynamics regulation by studying with the method of the quantum mechanics

    在探究電磁場理論的新發展時指出現代電磁場理論就是用量子力學的方法來研究宏觀的電動力學規律，即從本質上把電磁波看作是具有量子特性的物質波。
  14. In this article, introduce the important meanings of a - b effect, first is a have physics factors, second is wave function phase factor is connected with geometrical factor in ( b = 0, a 0 ), through a - b effect, we know : electromagnetic field vector e, b is local quantity, electromagnetic potential a, is global quantity, adding a, description and by the way of loop integral, electromagnetic field " effect is completely descripted

    本文介紹了有重要歷史意義的a - b效應， a - b效應揭示了兩點物理觀念的變革：一是電磁矢勢有物理效應。二是在無場強但有磁矢勢（ b = 0 ， a 0 ）的區域，波函數的相位因子與其運動空間結構有關。 a - b效應顯示； e 、 b是局域量， a 、是總體量，只有加入a 、之後的描述，並通過a的環路積分，才能對電磁場的作用做出完全準確的描述。
  15. 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。
  16. The non - ideal bemf waveform of bldcm is often caused by two facts. one is that the platform width of bemf waveform is less than 120 ; the other is the cogging harmonics existed in the bemf waveform

    非理想反電動勢波形的無刷直流電機有兩種情況，一種是反電動勢的梯形波的平頂寬度小於120 ；一種是由於磁場分佈受齒槽的影響，反電動勢存在齒諧波，使其波形發生畸變。
  17. A receiving surface of perturbative photon fluxes in interaction between gravitational waves and em fields

    引力波和電磁場作用中擾動光子流的接收面
  18. Using the microwave selective heating property for materials, by setup equivalent equation, and first time inducing the electromagnetic field perturbation theory to the design of heating materials for substrate in mpcvd, three temperature distribution modes were established, including temperature distribution comprehensive mode of inhomogeneous plasma, temperature distribution composite mode of composite substrate materials, temperature distribution perturbation mode of composite materials, which ii provided an whole new technology route to the design of substrate heating system in mpcvd and guided the preparation of heating materials for substrate. and then the heating materials for substrate were designed and optimized to obtain large area homogeneous temperature distribution even larger than substrate holder ' s diameter. as an important part, this thesis researched the nucleation and growth of diamond films in mpcvd, systematically researched the effects of substrate pretreatment, methane concentration, deposition pressure and substrate temperature etc experimental technologic parameters on diamond films " quality on ( 100 ) single crystal silicon substrate in the process of mpcvd, characterized the films qualities in laser raman spectra ( raman ), x - ray diffraction ( xrd ), scanning electron microscopy ( sem ), infrared transmission spectra ( ir ), atomic force microscopy ( afm ), determined the optimum parameters for mpcvd high quality diamond in the mpcvd - 4 mode system

    該系統可通過沉積參數的精確控制，以控制沉積過程，減少金剛石膜生長過程中的缺陷，並採用光纖光譜儀檢測分析等離子體的可見光光譜以監測微波等離體化學氣相沉積過程；利用微波對材料的選擇加熱特性，通過構造等效方程，並首次將電磁場攝動理論引入到mpcvd的基片加熱材料的設計中，建立了非均勻等離子體溫度場綜合模型、復合介質基片材料的復合溫度場模型及復合介質材料溫度場攝動模型，為mpcvd的基片加熱系統設計提供了一條全新的技術路線以指導基片加熱材料的制備，並對基片加熱材料進行了設計和優選，以獲取大面積均勻的溫度場區，甚至獲得大於基片臺尺寸的均勻溫度區；作為研究重點之一，開展了微波等離體化學氣相沉積金剛石的成核與生長研究，系統地研究了在（ 100 ）單晶硅基片上mpcvd沉積金剛石膜的實驗過程中，基片預處理、甲烷濃度、沉積氣壓、基體溫度等不同實驗工藝參數對金剛石薄膜質量的影響，分別用raman光譜、 x射線衍射（ xrd ） 、掃描電鏡（ sem ） 、紅外透射光譜（ ir ） 、原子力顯微鏡（ afm ）對薄膜進行了表徵，確立了該系統上mpcvd金剛石膜的最佳的實驗工藝參數。
  19. The electric currents and the magnetic fluctuations, which cause them are, very similar in form.

    電流以及產生這種電流的磁場波動在形式上極為相似。
  20. Based on the self - consistent nonlinear theory of complex cavity gyrotron with gradual transition, a simulation code of self - consistent nonlinear beam - wave interaction has been made, in which the multiple modes interaction with an electron beam and the mode coupling are taken into account. the interaction between the electron beam and hsn - h521 rf field for third - harmonic gyrotron is simulated. the influences of the thickness and the velocity spread and the velocity ratio of the electron beam and the fluctuation of the magnetic field and the technologic errors of complex cavity on the multi - modes interaction with an electron beam are analyzed

    二、在漸變復合腔迴旋管多模自洽非線性理論的基礎上，編制了高次諧波漸變復合腔迴旋管多模注?波互作用自洽非線性模擬軟體，並對8mm波段三次諧波漸變結構復合腔迴旋管的注? ?波互作用進行了大量的自洽非線性數值模擬計算與研究，進而分析了電子注的厚度、速度零散、速度比值、磁場波動、腔體尺寸的加工誤差等等多種因素對互作用效率的影響。
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