起磁電流 的英文怎麼說

中文拼音 [qǐcídiànliú]
起磁電流 英文
magnetizing current
  • 起 : 起Ⅰ動詞1 （站起; 坐起） rise; get up; stand up 2 （取出; 取走） draw out; remove; extract; pull 3...
  • 磁 : 名詞1. [物理學] （磁性; 能吸引鐵、鎳等的性質） magnetism 2. （瓷） porcelain; china
  • 電 : Ⅰ名詞1 （有電荷存在和電荷變化的現象） electricity 2 （電報） telegram; cable Ⅱ動詞1 （觸電） give...
  • 流 : Ⅰ動1 （液體移動; 流動） flow 2 （移動不定） drift; move; wander 3 （流傳; 傳播） spread 4 （向壞...
  • 電流 : current; galvanic current; electric current; electricity; current flow電流保護裝置 current protec...
  1. Oersted demonstrated that electric currents could produce magnetic effects.

    奧斯忒表演了電流能引起磁效應。
  2. The electromagnets would require only an initial power input to start the current in their coils.

    這種電磁鐵只要饋入一個初始功率就能起動線圈裡的電流。
  3. Whereas tesla had combined magnetic induction coils, resistors and capacitors to fashion his split - phase motors, he now connected induction coils and capacitors in new configurations to produce high - frequency currents

    當時特士拉已經在他的分相馬達里結合了磁感應線圈、電阻及電容，現在他將感應線圈與電容以新的方式連結起來，產生高頻電流。
  4. Induction heated oil tempered spring wire is a kind of new technical material which has been developed since 1980s. it can be heated by means of eddy induced into itself through electromagnetic coil and this method is mainly used in surface quenching. with correct designing and reasonable current frequency, induction coil and heat treatment process selected, as well as plc controlling applied, the wire can be uniform heated along cross - sectional and longitudinal direction and can be quenched and tempered continuously

    應加熱油淬火-回火彈簧鋼絲，是二十世紀八十年代發展起來的新技術材料，在國外稱為itw induction heat oil tempered spring wire 。是通過線圈電磁感應鋼絲本身產生的渦流進行加熱，通常主要用於表面淬火。經正確設計，選擇電流頻率，合理的感應線圈及熱處理工藝，並實施plc控制，可使鋼絲整個截面及長度上得到均勻加熱，進行連續整體淬火和回火。
  5. 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。
  6. If the excitation current is too great, adopting dc machine excitation would require more collecting rings

    如果勵磁電流太大，採用直流機勵磁則會引起集電環的對數增多。
  7. For the bldcm which has a pseudo - sinusoidal back - emf waveform, this dissertation presents a svpwm control method using six discrete position signals for minimizing the torque ripple. the main aspects for the implementation of this method are analyzed, including the initial orientation of the voltage vector, reasonable choice of the impedance angle and the advance commutation angle, and estimation of the successive rotor positions

    針對反電動勢類似正弦的準正弦波反電動勢無刷直流電動機，本文提出一種基於六個離散位置信號的自同步svpwm （電壓空間矢量法）控制方法，用以削弱電磁轉矩脈動，分析了實現這種方法的主要控制環節，包括起動時電壓空間矢量的初始定位，阻抗角與電流超前角的合理選擇以及連續轉子位置的估計等。
  8. The temperature dependences on the resistance in all the thin films show that in the low temperature range the width of eg band level changes the transports, but in the high temperature range the thin films forms the small polarons hopping conductivity. the phase transition induced by the current is explained by the demagnetization and lattice distortion

    在高溫部分，材料呈現小極化子跳躍形式輸運特徵；實驗研究了不同偏置電流對薄膜的相變影響，表明電場可以引起材料中磁性的變化和晶格畸變，導致相變溫度點向低溫方向移動；材料的光致相變研究表明光子能量、光強和極化方向對輸運性質有影響。
  9. The subject of this thesis is to study ironless moving coil linear permanent magnet synchronous motor and the major works in this thesis are summarized as follows : 1 ) two analytical formulas are derived by concentrated current method and distributed current method to determine the magnetic field due to pm, based on the current model of pm. besides, two method ( magnetic charge method and solution by laplace equation method ) are also introduced with comparing their advantages and disadvantages. then the effects of the motor parameters on the flux distribution are discussed

    本文對空芯動圈式直線同步電動機進行了深入細致的研究，內容包括： （ 1 ）採用電流模型推導出兩種計算永磁磁極二維氣隙磁場的解析公式（集中電流法、分佈電流法） ，同時介紹了兩種永磁電機氣隙磁場計算方法（磁荷法，直接求解拉氏方程法） ，分析各種方法的優缺點，討論電機參數對氣隙磁密的影響； （ 2 ）介紹了單層同心繞組的布置方式，根據安培定律推導出空芯動圈式直線永磁同步電動機的靜推力計算公式，分析靜態力?位移特性； （ 3 ）建立空芯動圈式直線永磁同步電動機動態模擬模型，模擬不同驅動方式下電動機起動、穩態運行時電磁力、速度、位移的變化情況。
  10. The feed - back provided by the reflected electron beams reduce the start - up current and the start - up time in a vircator, while the existence of klystron cavity improves the extracting efficiency, hence the radial reflex klystron oscillator with virtual cathode combines the advantages of both devices, becomes a compact, efficient set

    利用虛陰極反射電子束對調制腔的正反饋，可以減小起振電流和起振時間，而且提高了微波產生效率。它是一種結構簡單，緊湊，不需要引導磁場的器件。
  11. When egg cell hormone directly act on the milk secreted from hypothesis, the breast can thoroughly absorb fat and expand the sponge organization so the breast will lift slowly. according this theory, e - mini cpu nanometer underwear adopt the stimulation of the magnetized wave imitative the same formulation of the nervous system to the growth of egg cell hormone and make you have a plentiful breast

    使乳房更完善地吸收脂肪，海綿體增大，從而乳房便會逐漸隆起， e -美人微電腦納米美胸寶利用磁頻波原理，模擬神經系統同等方式的磁頻波與生物電流刺激，促進卵細胞荷爾蒙成長，使胸部重新發育，達到自然豐滿效果。
  12. Combined with the peuliarity of pmsm, the pmsm starting - torque and starting - current are studied, analyze why we chose such a rotor ' s slot, at the same time, generalize how to calculate the resistance of the rotor

    第四部分結合永磁同步電動機的自身特點研究了樣機的起動轉矩和起動電流，並分析了樣機所選轉子槽形，同時得出永磁同步電動機< wp = 5 >轉子電阻的計算方法。
  13. In accordance with the driving characteristics of ac driving locomotive, the working status of its traction transformer is analysed. the questions that should be considered in the traction transformer design of ac driving locomotive are mentioned. these questions are the large short - circuit impedance of traction winding, higher harmonic current, over - excitation and dc magnetization caused by large variation of the network voltage, etc. some disposal methods are given

    針對交流傳動電力機車的傳動特點，對其中的牽引變壓器的工作狀態進行了分析，指出交流傳動電力機車用牽引變壓器設計時需考慮的牽引繞組的短路阻抗大、電流的高次諧波、網壓波動大可能引起的過勵磁以及直流磁化等問題，同時給出了相應的一些解決方法。
  14. For compensating the nonlinear error between winding current and the result magnetic field of stepper motor, the method of minimum square is adopted to fit and correct the error curve of subdivision step angle, and the subdivision precision is improved

    為了補償步進電機相繞組電流與其產生磁場之間非線性引起的誤差，採用了最小二乘法對細分步距角誤差曲線進行了擬合與修正，提高了細分精度。
  15. The pid control of output voltage feedback is easy to give attention to static and dynamic performance of the control system. output performance of inverter of ups is improved when rms of output voltage feedback is added to pid control system. the hardware and software is designed in order to achieve the digital pid control of inverter of ups

    設計了用於逆變器數字化控制的采樣調理電路，結合tms320f240的硬體資源，通過軟體實現了ups系統的緩起動和市電跟蹤，並改進了逆變器電壓瞬時值控制，通過引入輸出電流中心值檢測，對反饋電壓進行補償，解決了逆變器輸出的偏磁問題。
  16. The thesis realizes the control exciting winding method and the best exciting in towards polarity method provided in this thesis with singlechip ( at90s8535 ) and scr hardware. it proves these methods are accurate and available through the control exciting winding test. analyzing the stator current and exciting current test curves on a salient - pole synchronous motor with 2kw - 4 poles, it solves the starting - difficulty of salient - pole synchronous motors, and improves motors " starting capability

    通過在一臺2kw 、 4極凸極同步電動機上進行異步起動試驗和分析試驗過程中的勵磁繞組電流和定子繞組電流的波形，證明了本文提出的勵磁控制線路的正確性和可行性，較好地解決了凸極同步電動機起動難的問題，同時改善了電機的起動性能。
  17. Compared with traditional electromagnet, this device has many merits. the article discusses methods of magnetization and demagnetization by the pulse of strong current. then the problems about whirlpool and material ' s selecting are discussed

    介紹了永磁起重吸盤的工作原理及相對于傳統電磁鐵的節能、省材、廉價、安全等特點，討論了應用電容儲能經rlc串聯二階電路放電產生的強電流脈沖對永磁體進行充、退磁的方法及渦流問題。
  18. The brushless dc starting magneto is an itegeration of the brushless dc motor and the motorcycle magneto. in this paper the design feathers of the stator, rotor and power circuit of the start magneto are discussed and the design methodologies are presented

    針對將直流無刷電機與摩托車磁電機集合在一起的直流無刷起動磁電機，分析了電機定、轉子及驅動電路的設計特點，提出了設計方法。
  19. In this paper calculation methods of various characteristics curves considering magnetic field nonlinear effect of synchronous generators is systematically studied. the comparison between the results and those without consideration of nonlinear effect is given. the magnetic field nonlinear effect on the operating characteristics is analyzed and the possible factors causing the nonlinear phenomenon is presented

    本論文系統地研究了同步發電機在考慮磁場非線性的影響下各種特性曲線的計算方法，並與不計磁場非線性時的結果進行比較，分析了磁場非線性對同步發電機運行特性的影響以及可能引起磁場非線性的因素，並研究在考慮三元變量作用下採用插值法估算同步發電機的勵磁電流和功角。
  20. During the process of numerical calculation of electromagnetic, the stator terminal voltage is set as restriction condition and the starting current is iterated in order to obtain the starting current and starting torque under the rating voltage. finally, the calculated results and measured results are compared to test that the calculation of starting performance can agree with the need of practical engineering project

    在電磁場的數值計算過程中，以定子端電壓為約束條件，對定子起動電流進行了迭代計算，得到了額定電壓下的起動電流和起動轉矩，最後把正弦電磁場計算結果與實測結果進行了對比，表明復合籠條轉子感應電動機起動性能的計算結果滿足工程實際的需要。
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