場磁極 的英文怎麼說
中文拼音 [chǎngcíjí]
場磁極
英文
field poles-
There is a force field around the arbitrary magnetic pole
在任一個磁極的周圍有一個力場。When reconnection is initiated on the dayside magnetopause, the interconnected imf and geomagnetic field lines are swept back by the solar wind over the earth ' s poles, pouring energy into the northern and southern lobes of the long magnetotail on the nightside
當磁力線重連在晝側的磁層頂上開始發生,連在一起的imf和地球磁場磁力線便被太陽風往後吹,掃過地球南北極,把能量灌入長磁尾的南北兩葉。Using the particle - in - cell ( pic ) model, a 8 millimeter relativistic backward wave oscillator underlying superradiance mechanism was gotten, the influence on both operation frequency and radiation efficiency of the guiding magnetic field, the diode voltage, the beam current and the beam radius as well as the corrugation structure were also presented
採用pic方法,通過數值模擬優化設計了超輻射狀態下的8毫米相對論返波振蕩器,分析了引導磁場、二極體電壓、電子束流、電子束半徑、周期慢波結構等對器件的輻射功率及輻射效率的影響。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。Magnetic field polarity reversals are magnetic poleshifts
磁場極性逆轉就是磁極轉換。Electromagnetic heat is generated from the coils that are transmitted with high frequency electric currents, when magnetic metal cookware is used, high magnetic frequencies are generated, thereby creating huge volumes of whirling fluids, which is transformed from electric power into heat power
電磁爐具熱源的產生是利用高頻電流通過一組線圈,形成高頻交變磁場,磁場的磁力線穿過鐵磁材料的金屬鍋,作用於鍋體內的粒子,使其劇烈運動、磨擦,即時產生極高的溫度場,將電能轉化成熱能。Magnetic head is designed by six magnetic poles in symmetrical distribution, the design of excitation loop and excitation angle makes magnetic field act on welding arc region which could control welding arc effectively. the insulation, cooling and hermetization of magnetic head avoid the influence on magnetic field of outside ; miniaturization design of magnetic head could achieve different welding process
磁頭裝置採用六磁極對稱勵磁方式設計,勵磁線圈和勵磁角度的設計使產生的磁場恰好作用於焊接電弧區域以實現對電弧的有效控制;磁頭的絕緣,冷卻,密封設計避免了焊接過程中外界因素對磁場的干擾;磁頭整體的小型化使該裝置可以實現多種形式的焊接工藝。Considering the effects of saturation, pole shape, some important coefficients including the effective pole - arc coefficient, the leakage coefficient, the air - gap coefficient are analyzed by electromagnetic method, and a series of useful curves are given
考慮磁路飽和、磁極形狀等因素的影響,利用電磁場數值解法對電磁計算中的有關系數,包括漏磁系數、計算極弧系數、氣隙系數等進行了分析研究,給出了工程實用的曲線。The magnetic reversal of the poles
磁場磁極的倒轉Occasionally, however, the dipole part of the field reverses, causing the locations of the north and south magnetic poles to switch
不過,有時候磁場的偶極部分會倒轉,導致了北磁極和南磁極的位置轉換。Characters of the flow field of molten metal in mhd caster are s imulated and analyzed by means of numerical simulation. relationship between flow field of molten metal and the number of magnet poles, arrangement of magnet pole s, rotating velocity of magnetic field as well as helical arrangement of permanen t magnets is revealed. it can be used as reference for optimizing design of perma nent caster
利用數值模擬對不同磁場條件下的永磁鑄機金屬液流場特徵進行了模擬分析;揭示了金屬液流場與永磁體極數、磁極排布方式、磁場旋轉速率以及永磁體螺旋式排布之間的關系,為永磁鑄機的優化設計提供了參考依據。During a reversal, the main field weakens, almost vanishes, then reappears with opposite polarity
在逆轉期間,主磁場減弱,幾乎為零,然後以相反的磁極重新出現。This model not only reckons in the effects of the space distribution and the connection pattern of the windings, the position of the short circuit point and the space harmonics of the gap magnetic field, but also takes into account the pole geometry, slot effects, saturation and eddy current in the rotor
該模型不僅能考慮繞組的分佈與聯接方式、故障的空間位置、氣隙磁場的空間諧波,還能細致地考慮磁極形狀、鐵芯的飽和和渦流等因素。But scientists need additional evidence to answer the puzzling questions about the magnetic field that emerges ? and why it would change polarity over time
但科學家需要更多證據來解釋令人困惑的問題,像是磁場的生成,以及為什麼磁極會隨時間而改變等。The geological record shows that it flips from time to time, with the south pole becoming the north, and vice versa
地質學記錄表明磁場會不時地兩極顛倒,磁場南極變為北極,北極成為南極。Mechanical structure and support design of iter poloidal field busbar were expounded and stress analysis was carried out using fea technique
摘要闡述了iter極向場磁體系統超導母線的結構及支撐設計,用有限元分析法對結構進行了分析。Secondly, we present the set of nonlinear partial differential equations that describes the wave - particle interaction, by analyzing the output power spectrum, the limit cycle and chaotic oscillation of the radiation field in the traveling wave tube ( twt ) amplifier and the magnetically insulated transmission line oscillator ( milo ) are studied numerically, respectively
接著,在論文的第三章和第四章我們從導出了一組用於描述場和電子相互作用的非線性偏微分耦合方程組開始,利用頻譜分析法,以行波管( twt )放大器和磁絕緣傳輸線振蕩器( milo )為例,數值研究了o型器件和m型器件中場的極限環振蕩和混沌行為。By studying mineral grains found in material ranging from rocks to clay articles, previous researchers have already been able to identify reversals dating back 170 million years, including the most recent switch 730, 000 years ago
通過研究巖石,陶器等一系列材料中含有的礦物顆粒,先前的研究人員已能夠確認早在1 . 7億年發生的磁場兩極轉化現象,以及發生在73萬年以前的最新一次兩極轉化現象。There exists strong magnetic field and abundant energetic particles in active coronal region, in magnetic field the extremely relativistic electrons will produce synchrotron radiation
太陽日冕中存在較強的磁場和大量的高能電子,在磁場中極端相對論電子將產生同步加速輻射。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。分享友人