高頻電磁場 的英文怎麼說

中文拼音 [gāobīndiànchǎng]
高頻電磁場 英文
electromagnetic field of high frequency
  • : Ⅰ形容詞1 (從下向上距離大; 離地面遠) tall; high 2 (在一般標準或平均程度之上; 等級在上的) above...
  • : Ⅰ形容詞(次數多) frequent Ⅱ副詞(屢次) frequently; repeatedly Ⅲ名詞1 [物理學] (物體每秒鐘振動...
  • : 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...
  • : 名詞1. [物理學] (磁性; 能吸引鐵、鎳等的性質) magnetism 2. (瓷) porcelain; china
  • : 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] (...
  • 高頻 : high frequency
  • 電磁場 : electromagnetic field電磁場極化 polarization of electromagnetic field; 電磁場理論 [物理學] electr...
  • 電磁 : [電學] [物理學] electromagnetism電磁安(培) abampere (電磁系電流單位); 電磁泵 electromagnetic ...
  1. Jg davis et al : health effects of low - frequency electric and magnetic fields. oak ridge associated universities, 1992

    目前沒有文獻指出,由家用器、視顯像終端和當地力輸配線所產生的極低會危害健康。
  2. The button electrode is one that widely used in high energy rf accelerators, such as storage ring, and the bpm made of button electrodes has many merits like high accuracy, high resolution, resisting magnetic field, simple machinery, without magnetic core and low cost, etc. so we want to use the button electrode as the bpm in high current accelerators like the lia

    鈕扣極束位置探測器是一種廣泛應用於射加速器儲存環等能弱流加速器的一種束位置測量裝置,它具有測量精度、解析度、不受干擾、機械結構簡單、無芯、造價低廉等特點。只是,至今未見有關這種束位置探測器在強流加速器(如,直線感應加速器)上應用的報導,如能將鈕扣極束位置探測器應用於lia ,將是一件很有意義的事情。
  3. To show the applicability of the proposed algorithm for engineering problems, the thesis computed the radiated electromagnetic field of a switched mode power supply, with special attention on the analysis of the emi in the electronic control circuit. different numerical results and two valuable guidelines are drawn

    從而以實際開關源為工程背景,通過對開關源產生的輻射的分析,重點計算了該開關源控制迴路處的主要干擾,得出了相應的數值計算結果和可供實用參照的結論。
  4. With the development of the converter drive technology, the requirement for the variable frequency drive are becoming more and more strict especially for the modern converter drive employing fast switching semiconductor igbt , though it has high pulse frequency and refreshing time of only nanoseconds, it generates emf that has adverse effect on the environment

    隨著率控制傳動技術的發展,對率變速傳動系統的要求越來越,尤其是對採用快速切換的igbt半導體現代變技術,盡管脈沖或更斷時間僅毫微秒內,但它們會對周圍環境產生
  5. Distribution of electromagnet field in the space of h - type rf ion source is worked out derivation from maxwell equations, and three - dimensional vector graphs of e and b in the space of rf ion source are calculated and plotted by mafia software

    並採用mafia軟體進行了三維實體建模,計算了離子源放擊穿前和穩定工作后的分佈,得到了離子源放空間分佈的直觀圖像。
  6. The antenna investigated in the dissertation is the unilateral slot antenna with fed taper and end taper, which is fed by fin - line

    最後藉助於三維高頻電磁場模擬軟體ansofthfss ,對整個鰭線饋線性漸變天線系統進行了優化。
  7. 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

    爐具熱源的產生是利用流通過一組線圈,形成交變力線穿過鐵材料的金屬鍋,作用於鍋體內的粒子,使其劇烈運動、磨擦,即時產生極的溫度,將能轉化成熱能。
  8. 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子注進行互作用的機理進行工作的,而子槍是行波管中產生子注並使它成型的基本部件,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。因此對行波管子槍的研究具有非常重要的意義。
  9. This paper develops a brain tumors heating curing instrument, which is based on the endogenetic field. it works by heating the ion and polity elements in the tumors organization, making the molecule twist and fracture. in that way, the temperature in the brain tumors is 3 ~ 7 c higher than the normal organization, and kills the brain tumor

    本文研製了一種基於內生的腦腫瘤射熱療儀,通過內生加溫促使腫瘤組織的離子和極性分子在中發生分子扭動、摩擦,產生熱滯留,使得腫瘤組織的溫度於周圍正常組織的3 ~ 7 ,從而燒死腦腫瘤細胞,達到安全治愈腫瘤的目的。
  10. As well - known, there is an induced current on the surface when metal material is in the high frequency electromagnetic field, since tending to skin heating effect to make the temperature of metal material surface go up promptly, surface beginning melt when temperature reaches the melting point of metal, metal material is heated up continuously by surface to core till the metal droplet of melting

    自懸浮定向流技術制備金屬納米微粒與一般的蒸發冷凝法有所不同,其原理是:金屬材料在高頻電磁場中產生表面感生流,由於趨膚加熱效應使得金屬材料表面的溫度迅速升,當溫度達到金屬的熔點時表面開始熔化,通過熱傳導作用金屬材料由表面到芯部不斷加熱直至熔化成金屬液滴。
  11. The effect of the primary and secondary winding widths on the power loss and energy storage are analyzed for the pcb winding pattern by using 2d - fem, it is demonstrated that when the primary and secondary have the same winding width, the transformer has the lowest ac - resistance and leakage, this suggests ways the designer can modify the winding arrangement to minimize the loss of transformer

    利用ansoft模擬軟體和本人開發的一維平面變壓器的繞組損耗計算程序對pcb繞組的並聯繞組的設計問題和pcb板繞組原副邊寬度相等問題進行了研究,提出了減少pcb板繞組的損耗的設計方法。
  12. On one hand, although the traditional methods to solve the electromagnetic scattering form the target by the so called high frequency methods such as po ( physical optics ), go ( geometry optics ), have the less memory and computational requirement, they also have the fatal defection that the accuracy of these methods are too poor to use in real applications

    一方面傳統的分析方法雖然計算較快,內存需求較低。但是其存在的致命缺陷是計算結果精度較低,在許多合下的計算結果的精度遠遠不能達到應用的要求。另一方面基於積分方程的多層快速多極子方法是一種求解散射問題的快速演算法。
  13. Occupational exposure limit for high frequency field in the work environment

    作業高頻電磁場職業接觸限值
  14. In the following section, the thesis demonstrated the robustness of the proposed method in the computation of radiated electromagnetic fields of switched mode power supplies by means of a numerical study on the electromagnetic fields of an electric dipole antenna

    應用本文開發基於pml吸收邊界條件三維時域有限差分計算軟體,計算了偶極子天線的三維輻射,並將計算結果與解析解進行了對比分析,驗證了時域有限差分法計算開關源輻射干擾的有效性。
  15. The first, the effect of the sizes of coupling slots in a coupling double gap cavity on the cavity characteristics is studied through simulation computation of three dimensions electromagnetic field and analysis of equivalent lumped element circuit. it is concluded by the research that, in lower frequency band, bigger coupling slots in a coupling double gap cavity are beneficial to raising the characteristic impedance and lowering the frequency of it mode

    第一,採用三維模擬計算方法和集中元件等效路法研究了耦合雙間隙腔中耦合槽尺寸對諧振腔性能如何影響等問題,得出了重要結論:在較低率波段,耦合雙間隙腔中開大耦合槽有利於提模的特性阻抗,降低模率。
  16. It is very important to the electromagnetic simulations. this paper base on the theory and method of electromagnetic calculation and fdtd, associate with the particle simulation technology, develop an algorithm to resolve the problem of the eigenmode analysis of the cold - cavity in practice

    本文從分析計算的基本原理和方法出發,立足於時域有限差分法,結合計算機粒子模擬技術和數值計算原理,開發出一種能夠分析計算功率微波器件冷腔諧振率以及本徵模式的演算法。
  17. Csm is a numeric mothed of analyzing static electric field. this paper compares the values of capacitance of different size of plate d and plate e in csm and cst mws. mom is a typical numeric method of researching high - frequency electromagnetic problems. accordingly, this paper computes input impedance of plate e and impedance matrix of traditional two element antenna array of electrically small dipoles separately in mom and cst mws, and then compares them detaily

    模擬荷法( csm - chargesimulationmethod )是研究靜的一種數值方法,本文比較了模擬荷法和cstmws對cfa的d 、 e兩盤在不同尺寸下的容的計算結果;矩量法是經典的研究學問題的數值方法,同時利用矩量法計算了cfa的e盤的輸入阻抗和傳統二元小偶極子陣的阻抗矩陣,將其結果與cstmws的模擬結果比較。
  18. Especially, some reports showed that elf - emf such as those from electric power transmission and distribution lines have been associated with increased risk of childhood leukemia, cancer of the nervous system, and lymphomas

    特別是有研究報道,由壓輸線等產生的工可增加兒童白血病,神經系統腫瘤及淋巴瘤發病的危險率。
  19. This dissertation brings forward a new method of modeling and simulation on interconnect ? fem - vfm, which combines finite element method with vector fitting method. we can get the scatter / admittance / impedance ( s / y / z ) parameter by fem in frequence domain, gain the equivalent spice circuits of interconnect structure by vfm, and extract the circuit ’ s parameters which are used to analyze in time domain. this method lets the simulation not only contain the information of pcb ’ s structure but also have a sustainable computing speed

    首先通過數值分析方法?有限元法( fem )對互連結構進行模擬分析,而得到的散射/導納/阻抗矩陣參數( s / y / z矩陣參數) ,然後通過矢量擬合方法( vfm )把s / y / z矩陣參數轉化為等效spice等效路模型,並且提取出路參數,完成了域到時域的轉換,最後使用路模擬器進行時域模擬,從而開發出了一系列速數字pcb板設計規則。
  20. This thesis contributed to the comprehensive study of the finite - difference time - domain ( fdtd ) method and its application to the numerical computation of radiated electromagnetic fields in switched mode power supplies. the work includes mainly three parts : the study on the performance of pml absorbing boundary condition applied to pseudo low frequency electromagnetic problems ; the validation of the fdtd method with pml absorbing boundary conditions and the corresponding computer software based on the numerical study of the electromagnetic field of an electric dipole antenna, and its application to the numerical computation of radiated electromagnetic fields in switched mode power supplies ; the development of an improved alternating direction implicit finite - difference time - domain method

    在綜合前人工作基礎上,本文對時域有限差分( fdtd )法及其在開關源輻射數值計算中的應用進行了系統的分析和研究,其核心內容包括:偽低數值計算中pml吸收邊界條件性能的研究;基於基準問題?偶極子天線三維輻射,驗證了本文構造的基於pml吸收邊界條件的三維fdtd法及其計算軟體,並應用於開關源輻射的數值分析;提出了一種改進的交替方向隱格式時域有限差分法。
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