有效磁場強度 的英文怎麼說

中文拼音 [yǒuxiàocíchǎngqiángdù]
有效磁場強度 英文
effective field strength
  • 有 : 有副詞[書面語] （表示整數之外再加零數）: 30 有 5 thirty-five; 10 有 5年 fifteen years
  • 效 : Ⅰ名詞（效果; 功用） effect; efficiency; result Ⅱ動詞1 （仿效） imitate; follow the example of 2 ...
  • 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] （...
  • 強 : 強形容詞（強硬不屈;固執） stubborn; unyielding
  • 度 : 度動詞[書面語] （推測; 估計） surmise; estimate
  • 有效 : effective; valid; efficacious
  • 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
  1. Finally, because high - speed power solenoid valve is one of the most important executive parts in the electronic control diesel engine and the performances of diesel engine are strongly related to the solenoid valve, the response performance of the solenoid valve is investigated. the response performance of the solenoid is influenced by many factors, such as driving voltage, electric driving unit etc. in order to have high excitation voltage and in low maintaining voltage, a high - low voltage electric driving unit is designed, and in order to make the solenoid valve close more rapidly, an active free - wheeling circuit and a bootstrapping circuit are designed in the electric driving unit, too. in the high - low electric driving unit, high voltage and low voltage are supplied by the dc - dc device and by the accumulator respectively

    高速強力電磁閥的響應性能除了與閥本身的結構和材料有關外，與驅動電壓、驅動電路的設計密切相關，本文通過分析，首先開發出一種高低壓驅動電路，高壓電源是山升壓式dc - dc原理獲取的，低壓由蓄電池本身提供，實現高壓強激和低壓維持的功能，電路中採用有源續流電柴汕機中卜軌知介系統的設訓及其七川j敝略的叭究路進行續流，加誣了電磁閥的關閉速度；採用自舉吐路，降低了場效應管對驅動電壓的要求。
  2. This paper presents our research in actuating in - vivo micro - robot based on the capsule endoscope platform by the external power. while seeking secure driving method we take several factors into account, such as driving environment, power transmitting and consuming, motion requirement and controllability, and locating technique. we mainly deal with driving the capsule with spatial gradient magnetic field, so we employ combined electro - magnetic coils, including gradient coils and homogenous coils, which have rotational dof around a translatable patient bed, to compose a controllable uniform gradient which act on the permanent - magnet embedded robot, thereby get an appropriate spatial force and torque to fulfill the anticipant locomotion such as move, stop, pitch and yaw

    基於驅動環境、能量供給和消耗、驅動動作要求及驅動安全性與可控性，定位方案等多方面考慮，尋求安全可靠的腸胃檢查微機器人的外部驅動控制方法，並著重研究直接利用外磁場磁力驅動微機器人:在微機器人內部嵌入永磁性體，利用體外的組合電磁線圈產生加載電流控制的驅動磁場，其中外部的電磁線圈由多組梯度線圈和勻場線圈組合構成，通過繞病床的旋轉以及病床的平移共同控制微機器人所在位置的磁場強度及梯度，作用於微機器人內嵌磁體以獲得空間意義上的必要驅動力和調整轉矩，從而有效地完成驅動動作要求。
  3. For amf contact structure, raising axial magnetic field density is an effective way to raise breaking current density in certain range

    對于縱向磁場結構，在一定范圍內提高其縱向磁感應強度是提高其電流開斷密度的有效途徑。
  4. Through the analyzes of electromagnetic system of a axial symmetry by the method of electromagnetic vector potential, an eddy current field math model is build by triangle cell, this article has researched the effect of power frequency to eddy current density, penetration depth and the skin effect

    本文以電磁場矢量位有限元法為基礎對二維軸對稱場的磁場強度、渦流密度進行了計算求解，採用三角形單元和六面體單元建立了渦流場數學模型，研究了電源頻率對渦流密度、透入深度及集膚效應等場量的作用影響。
  5. 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。
  6. According to magnetic medium following the theories, such as ferromagnetics, electromagnetic field, electrodynamics and so on, and linking the characteristics of driving of giant magnetostrictive materials, a control model and driving approach, which one to one correspondence with magnetostriction, are founded. the theory analysis and experimental study demonstrate that the control accuracy of giant magnetostrictive materials can be effectively improved, if using this control model and control approach of giant magnetostriction materials on account of flux density

    通過理論分析和實驗研究表明：這種基於磁感應強度的超磁致伸縮材料的控制模型和控制方法，可有效地提高超磁致伸縮材料的控制精度；研製了具有驅動磁場和微位移感知功能的磁場與位移感知型超磁致伸微位移執行器，並提出了適用於此種執行器的設計理論和方法。
  7. The design of excitation power source based on principle of three phase step motor and pulse width modulation ( pwm ) technology, intelligent power model ( ipm ) is used for inverter switches, the output ac pulse used as excitation signals. the speed of rotation and magnetic intensity can be changed by regulate the exciting converted frequency and magnitude of exciting current. constant current is achieved by closed loop feed back

    勵磁電源結合步進電機原理與脈寬調制技術，選用智能功率模塊ipm作為逆變開關器件，輸出交流脈沖勵磁信號，以調節勵磁轉換頻率和勵磁電流大小為手段，實現對磁場旋轉頻率和磁場強度大小的有效調節，並通過閉環反饋實現閉環恆流控制。
  8. Through the analyses of electromagnetic system of configuration of hollow metal cylinder by electromagnetic vector potential, an eddy current field math model is built by triangle cell, this article has researched power frequency to eddy current density, permeation depth and the effect of skin effect

    文中通過對一個空心金屬圓筒結構的電磁系統進行分析，以電磁場矢量位有限元法為基礎對磁場強度、渦流密度進行了計算求解，採用三角形單元建立了渦流場數學模型，研究了電源頻率對渦流密度、透入深度及集膚效應等場量的作用影響。
  9. In order to confirm the effects of noise mf, in the present study, we use 0. 4mt mf and noise mf, which intensity is hundred times than the previous studies and is proved repeatedly in our experiments to produce the clear biological effects, to examine the effects of noise mf on the clustering of egf, tnf receptors and sapk phosphorylation induced by 50hz mf

    故本文使用上述經反復驗證的、強度0 4mt 、具有明確生物效應的工頻磁場及相同強度的噪聲磁場，以sapk磷酸化及細胞膜egf與hf受體聚簇程度為研究指標，探索了噪聲磁場及由噪聲磁場與工頻磁場疊加產生的復合磁場的生物效應。
  10. In the hall effect, hall electromotive force is not only related to the current density, magnetic field and the distance of the poles, but also to hall coefficient directly

    據知，霍耳效應中輸出的霍耳電動勢除了跟輸入的電流強度、磁場強度及輸出電極的間距有關外，還與霍耳系數成正比。
  11. Abstract : the effects of magnetizing methods on the effective magnetic field strength showing the defects in the holes with short distances in magnetic particle inspection were studied by calculation

    文摘:通過計算研究小間距孔磁粉探傷時不同磁化方法對顯示缺陷的有效磁場強度的影響。
  12. Based on the theoretical calculation and the magnetic performance index, so - called " effective magnetization intensity ", an optimized scheme for a permanent magnetic thin film array is proposed, which is " given 10 m thickness film, the optimized size of the units is 40 m 40 m, while the distance between them is 10 m " finite element methods is employed to characterize the magnetic properties of a permanent magnetic thin film array with magnetic anisotropy

    在此基礎上，按照永磁薄膜陣列的「有效磁化強度」磁性能優化指標，求出了一個較理想的永磁薄膜陣列設計方案：對10微米厚的永磁薄膜，陣列單元為40 m 40 m ，間距為10 m 。本文利用有限元分析方法初步研究了各向異性永磁薄膜陣列的磁性能，得到了關于永磁薄膜陣列的磁化特徵，驗證了解析計算採用的均勻磁化假設的合理性，同時分析了磁場中永磁薄膜受到的磁力與薄膜厚度的變化關系。
  13. It is tested that the most proficiency method is using pulse - controlled magnet core to generate rotating magnetic field, in which the density and frequency of rotating field can be adjusted, the different form of rotating field can be easily achieved, and both magnetic pole and work piece need not rotate during the magnetic abrasive finishing process

    實踐證明，最有效的方法是脈沖控制電磁線圈的方法產生。這種類型旋轉磁場的強度和磁場的旋轉頻率都可以得到調節，磁場的不同旋轉形式也很容易實現，而且在研磨加工過程中工件和磁極都無需旋轉。
  14. However, the inhibition effects of noise mf on biological effects induced by mf were not accepted universally because the intensity of mf which used in these experiments was too small ( at micro - tesla order ) to produce the certain biological effects. so the theory is controversy

    然而，由於驗證該理論的實驗研究所用的磁場強浙江大學博士學位論文度很低（微特斯拉級） ，其本身所誘導的生物學效應存在不確定性，科學界對其結果尚存在爭論，因此，噪聲磁場的干預效應一直沒有被廣泛接受。
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